SN65HVD230
SN65HVD231
SN65HVD232
FEATURES
2• Operates With a 3.3-V Supply
• Low Power Replacement for the PCA82C250
Footprint
• Bus/Pin ESD Protection Exceeds 16 kV HBM
• High Input Impedance Allows for 120 Nodes on
a Bus
• Controlled Driver Output Transition Times for
Improved Signal Quality on the SN65HVD230
and SN65HVD231
• Unpowered Node Does Not Disturb the Bus
• Compatible With the Requirements of the ISO
11898 Standard
• Low-Current SN65HVD230 Standby Mode
370 μA Typical
• Low-Current SN65HVD231 Sleep Mode 40 nA
Typical
• Designed for Signaling Rates(1) up to 1
Megabit/Second (Mbps)
• Thermal Shutdown Protection
• Open-Circuit Fail-Safe Design
• Glitch-Free Power-Up and Power-Down
Protection for Hot-Plugging Applications
(1) The signaling rate of a line is the number of voltage
transitions that are made per second expressed in the units
bps (bits per second).
APPLICATIONS
• Motor Control
• Industrial Automation
• Basestation Control and Status
• Robotics
• Automotive
• UPS Control
DESCRIPTION
The SN65HVD230, SN65HVD231, and SN65HVD232 controller area network (CAN) transceivers are designed
for use with the Texas Instruments TMS320Lx240x™ ; 3.3-V DSPs with CAN controllers, or with
equivalent devices. They are intended for use in applications employing the CAN serial communication physical
layer in accordance with the ISO 11898 standard. Each CAN transceiver is designed to provide differential
transmit capability to the bus and differential receive capability to a CAN controller at speeds up to 1 Mbps.
Designed for operation in especially-harsh environments, these devices feature cross-wire protection,
loss-of-ground and overvoltage protection, overtemperature protection, as well as wide common-mode range.
The transceiver interfaces the single-ended CAN controller with the differential CAN bus found in industrial,
building automation, and automotive applications. It operates over a -2-V to 7-V common-mode range on the
bus, and it can withstand common-mode transients of ±25 V.
On the SN65HVD230 and SN65HVD231, pin 8 provides three different modes of operation: high-speed, slope
control, and low-power modes. The high-speed mode of operation is selected by connecting pin 8 to ground,
allowing the transmitter output transistors to switch on and off as fast as possible with no limitation on the rise
and fall slopes. The rise and fall slopes can be adjusted by connecting a resistor to ground at pin 8, since the
slope is proportional to the pin's output current. This slope control is implemented with external resistor values of
10 kΩ, to achieve a 15-V/μs slew rate, to 100 kΩ, to achieve a 2-V/μs slew rate. See the Application Information
section of this data sheet.
The circuit of the SN65HVD230 enters a low-current standby mode during which the driver is switched off and
the receiver remains active if a high logic level is applied to pin 8. The DSP controller reverses this low-current
standby mode when a dominant state (bus differential voltage > 900 mV typical) occurs on the bus.
The unique difference between the SN65HVD230 and the SN65HVD231 is that both the driver and the receiver
are switched off in the SN65HVD231 when a high logic level is applied to pin 8 and remain in this sleep mode
until the circuit is reactivated by a low logic level on pin 8.
The Vref pin 5 on the SN65HVD230 and SN65HVD231 is available as a VCC/2 voltage reference.
The SN65HVD232 is a basic CAN transceiver with no added options; pins 5 and 8 are NC, no connection.
Click here to download Texas Instruments SN65HVD230 SN65HVD231 SN65HVD232 pdf datasheet
DatasheetDoc-All pdf datasheet download
Sunday, August 5, 2012
Texas Instruments slod006b pdf datasheet download
slod006b
The Op Amp’s Place In The World
Ron Mancini
In 1934 Harry Black[1] commuted from his home in New York City to work at Bell Labs
in New Jersey by way of a railroad/ferry. The ferry ride relaxed Harry enabling him to do
some conceptual thinking. Harry had a tough problem to solve; when phone lines were
extended long distances, they needed amplifiers, and undependable amplifiers limited
phone service. First, initial tolerances on the gain were poor, but that problem was quickly
solved with an adjustment. Second, even when an amplifier was adjusted correctly at the
factory, the gain drifted so much during field operation that the volume was too low or the
incoming speech was distorted.
Many attempts had been made to make a stable amplifier, but temperature changes and
power supply voltage extremes experienced on phone lines caused uncontrollable gain
drift. Passive components had much better drift characteristics than active components
had, thus if an amplifier’s gain could be made dependent on passive components, the
problem would be solved. During one of his ferry trips, Harry’s fertile brain conceived a
novel solution for the amplifier problem, and he documented the solution while riding on
the ferry.
The solution was to first build an amplifier that had more gain than the application required.
Then some of the amplifier output signal was fed back to the input in a manner
that makes the circuit gain (circuit is the amplifier and feedback components) dependent
on the feedback circuit rather than the amplifier gain. Now the circuit gain is
dependent on the passive feedback components rather than the active amplifier. This is
called negative feedback, and it is the underlying operating principle for all modern day
op amps. Harry had documented the first intentional feedback circuit during a ferry ride.
I am sure unintentional feedback circuits had been built prior to that time, but the designers
ignored the effect!
I can hear the squeals of anguish coming from the managers and amplifier designers. I
imagine that they said something like this, “it is hard enough to achieve 30-kHz gain–
bandwidth (GBW), and now this fool wants me to design an amplifier with 3-MHz GBW.
But, he is still going to get a circuit gain GBW of 30 kHz”. Well, time has proven Harry right,
but there is a minor problem that Harry didn’t discuss in detail, and that is the oscillation problem. It seems that circuits designed with large open loop gains sometimes oscillate
when the loop is closed. A lot of people investigated the instability effect, and it was pretty
well understood in the 1940s, but solving stability problems involved long, tedious, and
intricate calculations. Years passed without anybody making the problem solution simpler
or more understandable.
In 1945 H. W. Bode presented a system for analyzing the stability of feedback systems
by using graphical methods. Until this time, feedback analysis was done by multiplication
and division, so calculation of transfer functions was a time consuming and laborious task.
Remember, engineers did not have calculators or computers until the ’70s. Bode presented
a log technique that transformed the intensely mathematical process of calculating a
feedback system’s stability into graphical analysis that was simple and perceptive. Feedback
system design was still complicated, but it no longer was an art dominated by a few
electrical engineers kept in a small dark room. Any electrical engineer could use Bode’s
methods to find the stability of a feedback circuit, so the application of feedback to machines
began to grow. There really wasn’t much call for electronic feedback design until
computers and transducers become of age.
The first real-time computer was the analog computer! This computer used preprogrammed
equations and input data to calculate control actions. The programming was
hard wired with a series of circuits that performed math operations on the data, and the
hard wiring limitation eventually caused the declining popularity of the analog computer.
The heart of the analog computer was a device called an operational amplifier because
it could be configured to perform many mathematical operations such as multiplication,
addition, subtraction, division, integration, and differentiation on the input signals. The
name was shortened to the familiar op amp, as we have come to know and love them.
The op amp used an amplifier with a large open loop gain, and when the loop was closed,
the amplifier performed the mathematical operations dictated by the external passive
components. This amplifier was very large because it was built with vacuum tubes and
it required a high-voltage power supply, but it was the heart of the analog computer, thus
its large size and huge power requirements were accepted as the price of doing business.
Many early op amps were designed for analog computers, and it was soon found out that
op amps had other uses and were very handy to have around the physics lab.
At this time general-purpose analog computers were found in universities and large company
laboratories because they were critical to the research work done there. There was
a parallel requirement for transducer signal conditioning in lab experiments, and op amps
found their way into signal conditioning applications. As the signal conditioning applications
expanded, the demand for op amps grew beyond the analog computer requirements,
and even when the analog computers lost favor to digital computers, the op amp
survived because of its importance in universal analog applications. Eventually digital
computers replaced the analog computers (a sad day for real-time measurements), but
the demand for op amps increased as measurement applications increased.
Click here to download Texas Instruments slod006b pdf datasheet
DatasheetDoc-All pdf datasheet download
The Op Amp’s Place In The World
Ron Mancini
In 1934 Harry Black[1] commuted from his home in New York City to work at Bell Labs
in New Jersey by way of a railroad/ferry. The ferry ride relaxed Harry enabling him to do
some conceptual thinking. Harry had a tough problem to solve; when phone lines were
extended long distances, they needed amplifiers, and undependable amplifiers limited
phone service. First, initial tolerances on the gain were poor, but that problem was quickly
solved with an adjustment. Second, even when an amplifier was adjusted correctly at the
factory, the gain drifted so much during field operation that the volume was too low or the
incoming speech was distorted.
Many attempts had been made to make a stable amplifier, but temperature changes and
power supply voltage extremes experienced on phone lines caused uncontrollable gain
drift. Passive components had much better drift characteristics than active components
had, thus if an amplifier’s gain could be made dependent on passive components, the
problem would be solved. During one of his ferry trips, Harry’s fertile brain conceived a
novel solution for the amplifier problem, and he documented the solution while riding on
the ferry.
The solution was to first build an amplifier that had more gain than the application required.
Then some of the amplifier output signal was fed back to the input in a manner
that makes the circuit gain (circuit is the amplifier and feedback components) dependent
on the feedback circuit rather than the amplifier gain. Now the circuit gain is
dependent on the passive feedback components rather than the active amplifier. This is
called negative feedback, and it is the underlying operating principle for all modern day
op amps. Harry had documented the first intentional feedback circuit during a ferry ride.
I am sure unintentional feedback circuits had been built prior to that time, but the designers
ignored the effect!
I can hear the squeals of anguish coming from the managers and amplifier designers. I
imagine that they said something like this, “it is hard enough to achieve 30-kHz gain–
bandwidth (GBW), and now this fool wants me to design an amplifier with 3-MHz GBW.
But, he is still going to get a circuit gain GBW of 30 kHz”. Well, time has proven Harry right,
but there is a minor problem that Harry didn’t discuss in detail, and that is the oscillation problem. It seems that circuits designed with large open loop gains sometimes oscillate
when the loop is closed. A lot of people investigated the instability effect, and it was pretty
well understood in the 1940s, but solving stability problems involved long, tedious, and
intricate calculations. Years passed without anybody making the problem solution simpler
or more understandable.
In 1945 H. W. Bode presented a system for analyzing the stability of feedback systems
by using graphical methods. Until this time, feedback analysis was done by multiplication
and division, so calculation of transfer functions was a time consuming and laborious task.
Remember, engineers did not have calculators or computers until the ’70s. Bode presented
a log technique that transformed the intensely mathematical process of calculating a
feedback system’s stability into graphical analysis that was simple and perceptive. Feedback
system design was still complicated, but it no longer was an art dominated by a few
electrical engineers kept in a small dark room. Any electrical engineer could use Bode’s
methods to find the stability of a feedback circuit, so the application of feedback to machines
began to grow. There really wasn’t much call for electronic feedback design until
computers and transducers become of age.
The first real-time computer was the analog computer! This computer used preprogrammed
equations and input data to calculate control actions. The programming was
hard wired with a series of circuits that performed math operations on the data, and the
hard wiring limitation eventually caused the declining popularity of the analog computer.
The heart of the analog computer was a device called an operational amplifier because
it could be configured to perform many mathematical operations such as multiplication,
addition, subtraction, division, integration, and differentiation on the input signals. The
name was shortened to the familiar op amp, as we have come to know and love them.
The op amp used an amplifier with a large open loop gain, and when the loop was closed,
the amplifier performed the mathematical operations dictated by the external passive
components. This amplifier was very large because it was built with vacuum tubes and
it required a high-voltage power supply, but it was the heart of the analog computer, thus
its large size and huge power requirements were accepted as the price of doing business.
Many early op amps were designed for analog computers, and it was soon found out that
op amps had other uses and were very handy to have around the physics lab.
At this time general-purpose analog computers were found in universities and large company
laboratories because they were critical to the research work done there. There was
a parallel requirement for transducer signal conditioning in lab experiments, and op amps
found their way into signal conditioning applications. As the signal conditioning applications
expanded, the demand for op amps grew beyond the analog computer requirements,
and even when the analog computers lost favor to digital computers, the op amp
survived because of its importance in universal analog applications. Eventually digital
computers replaced the analog computers (a sad day for real-time measurements), but
the demand for op amps increased as measurement applications increased.
Click here to download Texas Instruments slod006b pdf datasheet
DatasheetDoc-All pdf datasheet download
Texas Instruments SBOA092A pdf datasheet download
SBOA092A
HANDBOOK OF OPERATIONAL AMPLIFIER
APPLICATIONS
Bruce Carter and Thomas R. Brown
ABSTRACT
While in the process of reviewing Texas Instruments applications notes, including those
from Burr-Brown – I uncovered a couple of treasures, this handbook on op amp
applications and one on active RC networks. These old publications, from 1963 and
1966, respectively, are some of the finest works on op amp theory that I have ever seen.
Nevertheless, they contain some material that is hopelessly outdated. This includes
everything from the state of the art of amplifier technology, to the parts referenced in the
document – even to the symbol used for the op amp itself:
These numbers in the circles referred to pin numbers of old op amps, which were potted
modules instead of integrated circuits. Many references to these numbers were made in
the text, and these have been changed, of course.
In revising this document, I chose to take a minimal approach to the material out of
respect for the original author, – Thomas R. Brown, leaving as much of the original
material intact as possible while making the document relevant to present day designers.
There were some sections that were deleted or substantially changed:
•= “Broadbanding” operational amplifier modules – replaced with discussion of uncompensated
operational amplifiers.
•= Open loop applications and Comparators – Applications showing an operational amplifier
used open loop, as a comparator have been deleted. At the time of original publication,
there were no dedicated comparator components. Good design techniques now dictate
using a comparator instead of an operational amplifier. There are ways of safely using an
operational amplifier as a comparator – if the output stage is designed to be used that way -
as in a voltage limiting operational amplifier – or if clamping is added externally that
prevents the output from saturating. These applications are shown.
•= Testing Operational Amplifiers – a section that had become hopelessly outdated. Testing
techniques are now tailored to the individual amplifier, to test for parameters important to its
intended purpose or target end equipment.
•= Some other application circuits were eliminated – if they were deemed impractical in the
light of today’s technology.
This handbook has also been reorganized to eliminate some redundancy, and place all
application circuits in one location.
The reader is cautioned that proper decoupling techniques should be followed with
operational amplifiers. Decoupling components are omitted from applications schematics
in this document for clarity. Consult reference 2 for proper decoupling techniques.
I also cleaned up grammatical and spelling mistakes in the original.
--- Bruce Carter, Texas Instruments Applications
(Excerpts from) Thomas Brown’s original Preface:
The purpose of this handbook is to provide a single source of information covering the proper
design of circuits employing the versatile modem operational amplifier. This manual will be
helpful to the experienced user of operational amplifiers, as well as the new user, in extending
the range of potential applications in which these devices can be used to advantage.
It is assumed that the reader will have a basic knowledge of electronics, but no particular
knowledge of operational amplifiers is needed to use this handbook. The operational amplifier is
treated as a circuit component inherently subject to certain rules of operation. The design of the
operational amplifiers themselves is considered only when necessary to describe their less
evident properties.
Readers with a working knowledge of operational amplifiers will want to refer directly to the
circuit collection. Readers whose job functions have not previously brought them in contact with
operational amplifiers will want to proceed directly through the handbook until the desired degree
of familiarity is obtained.
Refinements are continuously being made in the design and application of operational
amplifiers, yet the basic principles of application remain the same. Please do not hesitate to
contact Texas Instruments at any time with questions or comments arising from the use of this
handbook. It is, after all, intended for you, the user.
--- Thomas R. Brown, Jr.
Click here to download Texas Instruments SBOA092A pdf datasheet
DatasheetDoc-All pdf datasheet download
HANDBOOK OF OPERATIONAL AMPLIFIER
APPLICATIONS
Bruce Carter and Thomas R. Brown
ABSTRACT
While in the process of reviewing Texas Instruments applications notes, including those
from Burr-Brown – I uncovered a couple of treasures, this handbook on op amp
applications and one on active RC networks. These old publications, from 1963 and
1966, respectively, are some of the finest works on op amp theory that I have ever seen.
Nevertheless, they contain some material that is hopelessly outdated. This includes
everything from the state of the art of amplifier technology, to the parts referenced in the
document – even to the symbol used for the op amp itself:
These numbers in the circles referred to pin numbers of old op amps, which were potted
modules instead of integrated circuits. Many references to these numbers were made in
the text, and these have been changed, of course.
In revising this document, I chose to take a minimal approach to the material out of
respect for the original author, – Thomas R. Brown, leaving as much of the original
material intact as possible while making the document relevant to present day designers.
There were some sections that were deleted or substantially changed:
•= “Broadbanding” operational amplifier modules – replaced with discussion of uncompensated
operational amplifiers.
•= Open loop applications and Comparators – Applications showing an operational amplifier
used open loop, as a comparator have been deleted. At the time of original publication,
there were no dedicated comparator components. Good design techniques now dictate
using a comparator instead of an operational amplifier. There are ways of safely using an
operational amplifier as a comparator – if the output stage is designed to be used that way -
as in a voltage limiting operational amplifier – or if clamping is added externally that
prevents the output from saturating. These applications are shown.
•= Testing Operational Amplifiers – a section that had become hopelessly outdated. Testing
techniques are now tailored to the individual amplifier, to test for parameters important to its
intended purpose or target end equipment.
•= Some other application circuits were eliminated – if they were deemed impractical in the
light of today’s technology.
This handbook has also been reorganized to eliminate some redundancy, and place all
application circuits in one location.
The reader is cautioned that proper decoupling techniques should be followed with
operational amplifiers. Decoupling components are omitted from applications schematics
in this document for clarity. Consult reference 2 for proper decoupling techniques.
I also cleaned up grammatical and spelling mistakes in the original.
--- Bruce Carter, Texas Instruments Applications
(Excerpts from) Thomas Brown’s original Preface:
The purpose of this handbook is to provide a single source of information covering the proper
design of circuits employing the versatile modem operational amplifier. This manual will be
helpful to the experienced user of operational amplifiers, as well as the new user, in extending
the range of potential applications in which these devices can be used to advantage.
It is assumed that the reader will have a basic knowledge of electronics, but no particular
knowledge of operational amplifiers is needed to use this handbook. The operational amplifier is
treated as a circuit component inherently subject to certain rules of operation. The design of the
operational amplifiers themselves is considered only when necessary to describe their less
evident properties.
Readers with a working knowledge of operational amplifiers will want to refer directly to the
circuit collection. Readers whose job functions have not previously brought them in contact with
operational amplifiers will want to proceed directly through the handbook until the desired degree
of familiarity is obtained.
Refinements are continuously being made in the design and application of operational
amplifiers, yet the basic principles of application remain the same. Please do not hesitate to
contact Texas Instruments at any time with questions or comments arising from the use of this
handbook. It is, after all, intended for you, the user.
--- Thomas R. Brown, Jr.
Click here to download Texas Instruments SBOA092A pdf datasheet
DatasheetDoc-All pdf datasheet download
Texas Instruments, RC4558 pdf datasheet download
RC4558
DUAL GENERAL-PURPOSE OPERATIONAL AMPLIFIER
FEATURES
• Continuous Short-Circuit Protection
• Wide Common-Mode and Differential Voltage
Ranges
• No Frequency Compensation Required
• Low Power Consumption
• No Latch-Up
• Unity-Gain Bandwidth . . . 3 MHz Typ
• Gain and Phase Match Between Amplifiers
• Low Noise . . . 8 nV/√Hz Typ at 1 kHz
DESCRIPTION/ORDERING INFORMATION
The RC4558 device is a dual general-purpose operational amplifier, with each half electrically similar to the
μA741, except that offset null capability is not provided.
The high common-mode input voltage range and the absence of latch-up make this amplifier ideal for
voltage-follower applications. The device is short-circuit protected, and the internal frequency compensation
ensures stability without external components.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Click here to download Texas Instruments RC4558 pdf datasheet
DatasheetDoc-All pdf datasheet download
DUAL GENERAL-PURPOSE OPERATIONAL AMPLIFIER
FEATURES
• Continuous Short-Circuit Protection
• Wide Common-Mode and Differential Voltage
Ranges
• No Frequency Compensation Required
• Low Power Consumption
• No Latch-Up
• Unity-Gain Bandwidth . . . 3 MHz Typ
• Gain and Phase Match Between Amplifiers
• Low Noise . . . 8 nV/√Hz Typ at 1 kHz
DESCRIPTION/ORDERING INFORMATION
The RC4558 device is a dual general-purpose operational amplifier, with each half electrically similar to the
μA741, except that offset null capability is not provided.
The high common-mode input voltage range and the absence of latch-up make this amplifier ideal for
voltage-follower applications. The device is short-circuit protected, and the internal frequency compensation
ensures stability without external components.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Click here to download Texas Instruments RC4558 pdf datasheet
DatasheetDoc-All pdf datasheet download
Texas Instruments, OMAP3530/25 pdf datasheet download
OMAP3530/25 Applications Processor
1 OMAP3530/25 Applications Processor
1.1.Features
OMAP3530/25 Applications Processor: – Additional C64x+™ Enhancements
– OMAP™ 3 Architecture · Protected Mode Operation
– MPU Subsystem · Exceptions Support for Error Detection
· Up to 720-MHz ARM Cortex™-A8 Core and Program Redirection
· NEON™ SIMD Coprocessor · Hardware Support for Modulo Loop – High Performance Image, Video, Audio Operation
(IVA2.2™) Accelerator Subsystem · C64x+ L1/L2 Memory Architecture
· Up to 520-MHz TMS320C64x+™ DSP – 32K-Byte L1P Program RAM/Cache (Direct
Core Mapped)
· Enhanced Direct Memory Access – 80K-Byte L1D Data RAM/Cache (2-Way
(EDMA) Controller (128 Independent Set-Associative)
Channels) – 64K-Byte L2 Unified Mapped RAM/Cache
· Video Hardware Accelerators (4-Way Set-Associative)
– POWERVR SGX™ Graphics Accelerator – 32K-Byte L2 Shared SRAM and 16K-Byte L2
(OMAP3530 Device Only) ROM
· Tile Based Architecture Delivering up to · C64x+ Instruction Set Features
10 MPoly/sec – Byte-Addressable (8-/16-/32-/64-Bit Data)
· Universal Scalable Shader Engine: – 8-Bit Overflow Protection
Multi-threaded Engine Incorporating – Bit-Field Extract, Set, Clear
Pixel and Vertex Shader Functionality – Normalization, Saturation. Bit-Counting
· Industry Standard API Support: – Compact 16-Bit Instructions OpenGLES 1.1 and 2.0, OpenVG1.0 – Additional Instructions to Support Complex · Fine Grained Task Switching, Load Multiplies Balancing, and Power Management
· Programmable High Quality Image · ARM Cortex™-A8 Core
Anti-Aliasing – ARMv7 Architecture
– Fully Software-Compatible With C64x and · Trust Zone®
ARM9™ · Thumb®-2
– Commercial and Extended Temperature · MMU Enhancements
Grades – In-Order, Dual-Issue, Superscalar
· Advanced Very-Long-Instruction-Word (VLIW) Microprocessor Core
TMS320C64x+™ DSP Core – NEON™ Multimedia Architecture
– Eight Highly Independent Functional Units – Over 2x Performance of ARMv6 SIMD
· +Six ALUs (32-/40-Bit), Each Supports – Supports Both Integer and Floating Point
Single 32-Bit, Dual 16-Bit, or Quad 8-Bit SIMD
Arithmetic per Clock Cycle – Jazelle® RCT Execution Environment
· Two Multipliers Support Four 16 x 16-Bit Architecture
Multiplies (32-Bit Results) per Clock – Dynamic Branch Prediction with Branch
Cycle or Eight 8 x 8-Bit Multiplies (16-Bit Target Address Cache, Global History
Results) per Clock Cycle Buffer, and 8-Entry Return Stack
– Load-Store Architecture With Non-Aligned – Embedded Trace Macrocell (ETM) Support
Support for Non-Invasive Debug
– 64 32-Bit General-Purpose Registers · ARM Cortex™-A8 Memory Architecture:
– Instruction Packing Reduces Code Size – 16K-Byte Instruction Cache (4-Way
– All Instructions Conditional Set-Associative)
1.2.Description
OMAP3530 and OMAP3525 high-performance, applications processors are based on the enhanced
OMAP™ 3 architecture.
The OMAP™ 3 architecture is designed to provide best-in-class video, image, and graphics processing
sufficient to support the following:
· Streaming video
· 3D mobile gaming
· Video conferencing
· High-resolution still image
The device supports high-level operating systems (OSs), such as:
· Linux
· Windows CE
This OMAP device includes state-of-the-art power-management techniques required for high-performance
mobile products.
The following subsystems are part of the device:
· Microprocessor unit (MPU) subsystem based on the ARM Cortex™-A8 microprocessor
· IVA2.2 subsystem with a C64x+ digital signal processor (DSP) core
· POWERVR SGX™ subsystem for 3D graphics acceleration to support display and gaming effects
(3530 only)
· Camera image signal processor (ISP) that supports multiple formats and interfacing options connected
to a wide variety of image sensors
· Display subsystem with a wide variety of features for multiple concurrent image manipulation, and a
programmable interface supporting a wide variety of displays. The display subsystem also supports
NTSC/PAL video out.
· Level 3 (L3) and level 4 (L4) interconnects that provide high-bandwidth data transfers for multiple
initiators to the internal and external memory controllers and to on-chip peripherals
The device also offers:
· A comprehensive power and clock-management scheme that enables high-performance, low-power
operation, and ultralow-power standby features. The device also supports SmartReflex™ adaptative
voltage control. This power management technique for automatic control of the operating voltage of a
module reduces the active power consumption.
· Memory stacking feature using the package-on-package (POP) implementation (CBB and CBC
packages only)
OMAP30/25 devices are available in a 515-pin s-PBGA package (CBB suffix), 515-pin s-PBGA package
(CBC suffix), and a 423-pin s-PBGA package (CUS suffix). Some features of the CBB and CBC packages
are not available in the CUS package.
Click here to download Texas Instruments OMAP3530/25 pdf datasheet
DatasheetDoc-All pdf datasheet download
1 OMAP3530/25 Applications Processor
1.1.Features
OMAP3530/25 Applications Processor: – Additional C64x+™ Enhancements
– OMAP™ 3 Architecture · Protected Mode Operation
– MPU Subsystem · Exceptions Support for Error Detection
· Up to 720-MHz ARM Cortex™-A8 Core and Program Redirection
· NEON™ SIMD Coprocessor · Hardware Support for Modulo Loop – High Performance Image, Video, Audio Operation
(IVA2.2™) Accelerator Subsystem · C64x+ L1/L2 Memory Architecture
· Up to 520-MHz TMS320C64x+™ DSP – 32K-Byte L1P Program RAM/Cache (Direct
Core Mapped)
· Enhanced Direct Memory Access – 80K-Byte L1D Data RAM/Cache (2-Way
(EDMA) Controller (128 Independent Set-Associative)
Channels) – 64K-Byte L2 Unified Mapped RAM/Cache
· Video Hardware Accelerators (4-Way Set-Associative)
– POWERVR SGX™ Graphics Accelerator – 32K-Byte L2 Shared SRAM and 16K-Byte L2
(OMAP3530 Device Only) ROM
· Tile Based Architecture Delivering up to · C64x+ Instruction Set Features
10 MPoly/sec – Byte-Addressable (8-/16-/32-/64-Bit Data)
· Universal Scalable Shader Engine: – 8-Bit Overflow Protection
Multi-threaded Engine Incorporating – Bit-Field Extract, Set, Clear
Pixel and Vertex Shader Functionality – Normalization, Saturation. Bit-Counting
· Industry Standard API Support: – Compact 16-Bit Instructions OpenGLES 1.1 and 2.0, OpenVG1.0 – Additional Instructions to Support Complex · Fine Grained Task Switching, Load Multiplies Balancing, and Power Management
· Programmable High Quality Image · ARM Cortex™-A8 Core
Anti-Aliasing – ARMv7 Architecture
– Fully Software-Compatible With C64x and · Trust Zone®
ARM9™ · Thumb®-2
– Commercial and Extended Temperature · MMU Enhancements
Grades – In-Order, Dual-Issue, Superscalar
· Advanced Very-Long-Instruction-Word (VLIW) Microprocessor Core
TMS320C64x+™ DSP Core – NEON™ Multimedia Architecture
– Eight Highly Independent Functional Units – Over 2x Performance of ARMv6 SIMD
· +Six ALUs (32-/40-Bit), Each Supports – Supports Both Integer and Floating Point
Single 32-Bit, Dual 16-Bit, or Quad 8-Bit SIMD
Arithmetic per Clock Cycle – Jazelle® RCT Execution Environment
· Two Multipliers Support Four 16 x 16-Bit Architecture
Multiplies (32-Bit Results) per Clock – Dynamic Branch Prediction with Branch
Cycle or Eight 8 x 8-Bit Multiplies (16-Bit Target Address Cache, Global History
Results) per Clock Cycle Buffer, and 8-Entry Return Stack
– Load-Store Architecture With Non-Aligned – Embedded Trace Macrocell (ETM) Support
Support for Non-Invasive Debug
– 64 32-Bit General-Purpose Registers · ARM Cortex™-A8 Memory Architecture:
– Instruction Packing Reduces Code Size – 16K-Byte Instruction Cache (4-Way
– All Instructions Conditional Set-Associative)
1.2.Description
OMAP3530 and OMAP3525 high-performance, applications processors are based on the enhanced
OMAP™ 3 architecture.
The OMAP™ 3 architecture is designed to provide best-in-class video, image, and graphics processing
sufficient to support the following:
· Streaming video
· 3D mobile gaming
· Video conferencing
· High-resolution still image
The device supports high-level operating systems (OSs), such as:
· Linux
· Windows CE
This OMAP device includes state-of-the-art power-management techniques required for high-performance
mobile products.
The following subsystems are part of the device:
· Microprocessor unit (MPU) subsystem based on the ARM Cortex™-A8 microprocessor
· IVA2.2 subsystem with a C64x+ digital signal processor (DSP) core
· POWERVR SGX™ subsystem for 3D graphics acceleration to support display and gaming effects
(3530 only)
· Camera image signal processor (ISP) that supports multiple formats and interfacing options connected
to a wide variety of image sensors
· Display subsystem with a wide variety of features for multiple concurrent image manipulation, and a
programmable interface supporting a wide variety of displays. The display subsystem also supports
NTSC/PAL video out.
· Level 3 (L3) and level 4 (L4) interconnects that provide high-bandwidth data transfers for multiple
initiators to the internal and external memory controllers and to on-chip peripherals
The device also offers:
· A comprehensive power and clock-management scheme that enables high-performance, low-power
operation, and ultralow-power standby features. The device also supports SmartReflex™ adaptative
voltage control. This power management technique for automatic control of the operating voltage of a
module reduces the active power consumption.
· Memory stacking feature using the package-on-package (POP) implementation (CBB and CBC
packages only)
OMAP30/25 devices are available in a 515-pin s-PBGA package (CBB suffix), 515-pin s-PBGA package
(CBC suffix), and a 423-pin s-PBGA package (CUS suffix). Some features of the CBB and CBC packages
are not available in the CUS package.
Click here to download Texas Instruments OMAP3530/25 pdf datasheet
DatasheetDoc-All pdf datasheet download
Texas Instruments NA555, NE555, SA555, SE555 pdf datasheet download
NA555, NE555, SA555, SE555
PRECISION TIMERS
FEATURES
• Timing From Microseconds to Hours • Adjustable Duty Cycle
• Astable or Monostable Operation • TTL-Compatible Output Can Sink or Source up
to 200 mA
DESCRIPTION/ORDERING INFORMATION
These devices are precision timing circuits capable of producing accurate time delays or oscillation. In the
time-delay or monostable mode of operation, the timed interval is controlled by a single external resistor and
capacitor network. In the astable mode of operation, the frequency and duty cycle can be controlled
independently with two external resistors and a single external capacitor.
The threshold and trigger levels normally are two-thirds and one-third, respectively, of VCC. These levels can be
altered by use of the control-voltage terminal. When the trigger input falls below the trigger level, the flip-flop is
set, and the output goes high. If the trigger input is above the trigger level and the threshold input is above the
threshold level, the flip-flop is reset and the output is low. The reset (RESET) input can override all other inputs
and can be used to initiate a new timing cycle. When RESET goes low, the flip-flop is reset, and the output goes
low. When the output is low, a low-impedance path is provided between discharge (DISCH) and ground.
The output circuit is capable of sinking or sourcing current up to 200 mA. Operation is specified for supplies of
5 V to 15 V. With a 5-V supply, output levels are compatible with TTL inputs.
Click here to download Texas Instruments NA555, NE555, SA555, SE555 pdf datasheet
DatasheetDoc-All pdf datasheet download
PRECISION TIMERS
FEATURES
• Timing From Microseconds to Hours • Adjustable Duty Cycle
• Astable or Monostable Operation • TTL-Compatible Output Can Sink or Source up
to 200 mA
DESCRIPTION/ORDERING INFORMATION
These devices are precision timing circuits capable of producing accurate time delays or oscillation. In the
time-delay or monostable mode of operation, the timed interval is controlled by a single external resistor and
capacitor network. In the astable mode of operation, the frequency and duty cycle can be controlled
independently with two external resistors and a single external capacitor.
The threshold and trigger levels normally are two-thirds and one-third, respectively, of VCC. These levels can be
altered by use of the control-voltage terminal. When the trigger input falls below the trigger level, the flip-flop is
set, and the output goes high. If the trigger input is above the trigger level and the threshold input is above the
threshold level, the flip-flop is reset and the output is low. The reset (RESET) input can override all other inputs
and can be used to initiate a new timing cycle. When RESET goes low, the flip-flop is reset, and the output goes
low. When the output is low, a low-impedance path is provided between discharge (DISCH) and ground.
The output circuit is capable of sinking or sourcing current up to 200 mA. Operation is specified for supplies of
5 V to 15 V. With a 5-V supply, output levels are compatible with TTL inputs.
Click here to download Texas Instruments NA555, NE555, SA555, SE555 pdf datasheet
DatasheetDoc-All pdf datasheet download
National Semiconductor, Texas Instruments, LM340/LM78XX pdf datasheet download
LM340/LM78XX Series
3-Terminal Positive Regulators
General Description
The LM140/LM340A/LM340/LM78XXC monolithic
3-terminal positive voltage regulators employ internal
current-limiting, thermal shutdown and safe-area compensation,
making them essentially indestructible. If adequate heat
sinking is provided, they can deliver over 1.0A output current.
They are intended as fixed voltage regulators in a wide
range of applications including local (on-card) regulation for
elimination of noise and distribution problems associated
with single-point regulation. In addition to use as fixed voltage
regulators, these devices can be used with external
components to obtain adjustable output voltages and currents.
Considerable effort was expended to make the entire series
of regulators easy to use and minimize the number of external
components. It is not necessary to bypass the output,
although this does improve transient response. Input bypassing
is needed only if the regulator is located far from the
filter capacitor of the power supply.
The 5V, 12V, and 15V regulator options are available in the
steel TO-3 power package. The LM340A/LM340/LM78XXC
series is available in the TO-220 plastic power package, and
the LM340-5.0 is available in the SOT-223 package, as well
as the LM340-5.0 and LM340-12 in the surface-mount TO-
263 package.
Features
n Complete specifications at 1A load
n Output voltage tolerances of ±2% at Tj = 25°C and ±4%
over the temperature range (LM340A)
n Line regulation of 0.01% of VOUT/V of ΔVIN at 1A load
(LM340A)
n Load regulation of 0.3% of VOUT/A (LM340A)
n Internal thermal overload protection
n Internal short-circuit current limit
n Output transistor safe area protection
n P+ Product Enhancement tested
Click here to download National Semiconductor, Texas Instruments, LM340/LM78XX pdf datasheet
DatasheetDoc-All pdf datasheet download
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