The ADXL345 is a small, thin, low power, 3-axis accelerometer with high resolution (13-bit) measurement at up to ±16g. Digital output data is formatted as 16-bit twos complement and is accessible through either a SPI (3- or 4-wire) or I2C digital interface.The ADXL345 is well suited for mobile device applications. It measures the static acceleration of gravity in tilt-sensing applications, as well as dynamic acceleration resulting from motion or shock. Its high resolution (4 mg/LSB) enables measurement of inclination changes less than 1.0°.Several special sensing functions are provided. Activity and inactivitysensing detect the presence or lack of motion by comparingthe acceleration on any axis with user-set thresholds. Tap sensingdetects single and double taps in any direction. Free-fall sensingdetects if the device is falling. These functions can be mappedindividually to either of two interrupt output pins. An integratedmemory management system with a 32-level first in, first out (FIFO)buffer can be used to store data to minimize host processor activityand lower overall system power consumption.Low power modes enable intelligent motion-based power management with threshold sensing and active acceleration measurement at extremely low power dissipation.The ADXL345 is supplied in a small, thin, 3 mm × 5 mm × 1 mm, 14-lead, plastic package. ADXL345-EP Supports defense and aerospace applications (AQEC)APPLICATIONS Handsets Medical instrumentation Gaming and pointing devices Industrial instrumentation Personal navigation devices Hard disk drive (HDD) protection

The PM156 provides low input current, high slew rate, and direct interchangeability with LF156 type. This operational amplifier uses a new process which allows fabrication of matched JFET transistors and standard bipolar transistors on the same chip. High accuracy make the PM156 useful in new designs and as replacements for modular and hybrid types. Unlike many designs, nulling the input offset voltage does not degrade common-mode rejection ratio or input offset voltage drift. Low input voltage noise and current noise plus a low 1/f noise corner frequency allow these amplifiers to be used in a variety of low noise, wide-bandwidth applications.Dynamic specifications for the PM156 include a typical slew rate of 12V/µs, a 2.5MHz gain bandwidth product, and settling time to within ±0.01% of final value in 4.0µs.

The OP27 precision operational amplifier combines the low offset and drift of the OP07 with both high speed and low noise. Offsets down to 25µV and drift of 0.6µV/°C maximum make the OP27 ideal for precision instrumentation applications. Exceptionally low noise, a low 1/f noise corner frequency, and high gain (1.8 million), allow accurate high-gain amplification of low-level signals. A gain-bandwidth product of 8MHz and a 2.8V/µsec slew rate provides excellent dynamic accuracy in high-speed data-acquisition systems. A low input bias current of ±10nA typical is achieved by use of a bias-current-cancellation circuit. The output stage has good load driving capability. A guaranteed swing of ±10V into 600 Ohms and low output distortion make the OP27 an excellent choice for audio applications. PSRR and CMRR exceed 120dB. These characteristics, coupled with long-term drift of 0.2µV/month, allow the circuit designer to achieve performance levels previously attained only by discrete designs.

The ADSP-2136x SHARC® processor is a member of the SIMD SHARC family of DSPs that feature Analog Devices, Inc., Super Harvard Architecture. The processor is source code-compatible with the ADSP-2126x and ADSP-2116x DSPs, as well as with first generation ADSP-2106x SHARC processors in SISD (single-instruction, single-data) mode. The ADSP-2136x are 32-/40-bit floating-point processors optimized for high performance automotive audio applications. They contain a large on-chip SRAM and ROM, multiple internal buses to eliminate I/O bottlenecks, and an innovative digital audio interface (DAI).As shown in the functional block diagram on Page 1, the ADSP-2136x uses two computational units to deliver a significant performance increase over the previous SHARC processors on a range of signal processing algorithms. With its SIMD computational hardware, the ADSP-2136x can perform two GFLOPS running at 333 MHz. 

The third generation of SHARC® Processors offers increased performance, audio and application-focused peripherals, and new memory configurations. The ADSP-21369 increases performance to 400MHz while simplifying algorithm development with the integration of a high-bandwidth and very flexible external memory interface. The ADSP-21369 is based on a single-instruction, multiple-data (SIMD) core which supports both 32-bit fixed-point and 32-/40-bit floating point arithmetic formats and is completely code-compatible with all prior SHARC Processors allowing for maximum reuse of legacy code.The ADSP-21369 increases the amount of on-chip memory to 2Mb SRAM and 6Mb ROM while integrating a variety of audio-specific and general purpose peripherals. Peripherals such as an all digital S/PDIF transmitter/receiver, 8-channel asynchronous sample rate converter, 8 high-speed serial ports, 4 precision clock generators, and multiple serial interfaces combine to ensure the ADSP-21369 maximizes system throughput while minimizing system bill of materials costs.

The third generation of SHARC®­ Processors, which includes the ADSP-21375 and ADSP-21371, offers increased performance, audio and application-focused peripherals, and memory configurations capable of supporting surround-sound decoder algorithms. All devices are pin-compatible and completely code-compatible with other SHARC Processors such as the ADSP-21367 and ADSP-21369. These members of the SHARC Processor family are based on a single-instruction, multiple-data (SIMD) core, which supports both 32-bit fixed-point and 32-/40-bit floating-point arithmetic formats making them particularly suitable for high-performance audio applications.The ADSP-21371 offers a high performance at a very low cost 266 MHz/1596 MFLOPs -- within the third generation SHARC Processor family. This level of performance makes the ADSP-21371 particularly well suited to address the increasing requirements of the professional and automotive audio market segments while maintaining a low cost. In addition to its higher core performance, the ADSP-21371 includes additional value-added peripherals such as an S/PDIF transmitter/receiver. The ADSP-21371 also provides a direct interface to synchronous SDRAMs with a 32-bit interface that operates at 133 MHz.Third generation SHARC Processors also integrate application-specific peripherals designed to simplify hardware design, minimize design risks, and ultimately reduce time to market. Grouped together, and broadly named the Digital Audio Interface (DAI), these functional blocks may be connected to each other or to external pins via the software-programmable Signal Routing Unit (SRU). The SRU is an innovative architectural feature that enables complete and flexible routing amongst DAI blocks. Peripherals connected through the SRU include but are not limited to serial ports, SPI ports, and S/PDIF Tx/Rx.DEDICATED AUDIO COMPONENTS ADSP-21371—S/PDIF-compatible digital audio receiver/transmitter ADSP-21371—8 dual data line serial ports that operate at up to 33 Mbps on each data line — each has a clock, frame sync, and two data lines that can be configured as either a receiver or transmitter pair 16 PWM outputs configured as four groups of four outputs ROM-based security features include JTAG access to memory permitted with a 64-bit key Protected memory regions that can be assigned to limit access under program control to sensitive code PLL has a wide variety of software and hardware multiplier/divider ratios Available in a 208-lead LQFP_EP package

The ADSP-BF522C Blackfin Processor combines high performance, power efficiency and system integration to enable highly optimized designs without compromises. With built-in peripheral selectivity the BF522C provides the greatest flexibility for today’s most demanding convergent signal processing applications. For battery powered applications that either enhance the multimedia experience or deliver a full Mobile TV implementation, the ADSP-BF522C represents the ideal solution to release design innovation.IP protection has become a necessary part of today’s embedded computing applications. The ADSP-BF522C provides a security scheme which balances flexibility and upgradeability with performance through the inclusion of a firmware-based solution including OTP (One Time Programmable) memory to enable users to implement private keys for secure access to program code.For space constrained audio applications the ADSP-BF522C supports an embedded low power stereo audio CODEC.

The ADSP-BF522C Blackfin Processor combines high performance, power efficiency and system integration to enable highly optimized designs without compromises. With built-in peripheral selectivity the BF522C provides the greatest flexibility for today’s most demanding convergent signal processing applications. For battery powered applications that either enhance the multimedia experience or deliver a full Mobile TV implementation, the ADSP-BF522C represents the ideal solution to release design innovation.IP protection has become a necessary part of today’s embedded computing applications. The ADSP-BF522C provides a security scheme which balances flexibility and upgradeability with performance through the inclusion of a firmware-based solution including OTP (One Time Programmable) memory to enable users to implement private keys for secure access to program code.For space constrained audio applications the ADSP-BF522C supports an embedded low power stereo audio CODEC.

The ADSP-BF525 offers up to 600 MHz performance and up to 1200 MMACs. This processor core is supported by an advanced DMA controller supporting one-and two-dimensional DMA transfers between on-chip memory, off-chip memory, and system peripherals. The combination of the processor core speed and the DMA controller allows for efficient processing of audio, voice, video, and image data.The ADSP-BF525 provides peripheral flexibility to complement its high performance processing. The HS USB OTG host direct memory access (HDMA) and NAND flash controller are just a few of the peripheral options on the ADSP-BF525 family—not to mention the availability of up to 48 GPIO ports.For applications where product differentiation represents a challenge for securing market leadership, the ADSP-BF525 enables developers to provide features and benefits to augment their product offerings without compromising cost or power. The scalability of the ADSP-BF525 makes it an ideal candidate for Premium Audio Players where differentiation of features can be realized without sacrificing system cost. Where the diversity of Multimedia applications and content security are key attributes the ADSP-BF525 provides processing flexibility and Lockbox™ Secure Technology to enable users to develop freely and without bounds.IP protection has become a necessary part of today’s embedded computing applications. The ADSP-BF525 provides a security scheme which balances flexibility and upgradeability with performance through the inclusion of a firmware-based solution including OTP (One Time Programmable) memory to enable users to implement private keys for secure access to program code.

The ADSP-BF525 offers up to 600 MHz performance and up to 1200 MMACs. This processor core is supported by an advanced DMA controller supporting one-and two-dimensional DMA transfers between on-chip memory, off-chip memory, and system peripherals. The combination of the processor core speed and the DMA controller allows for efficient processing of audio, voice, video, and image data.The ADSP-BF525 provides peripheral flexibility to complement its high performance processing. The HS USB OTG host direct memory access (HDMA) and NAND flash controller are just a few of the peripheral options on the ADSP-BF525 family—not to mention the availability of up to 48 GPIO ports.For applications where product differentiation represents a challenge for securing market leadership, the ADSP-BF525 enables developers to provide features and benefits to augment their product offerings without compromising cost or power. The scalability of the ADSP-BF525 makes it an ideal candidate for Premium Audio Players where differentiation of features can be realized without sacrificing system cost. Where the diversity of Multimedia applications and content security are key attributes the ADSP-BF525 provides processing flexibility and Lockbox™ Secure Technology to enable users to develop freely and without bounds.IP protection has become a necessary part of today’s embedded computing applications. The ADSP-BF525 provides a security scheme which balances flexibility and upgradeability with performance through the inclusion of a firmware-based solution including OTP (One Time Programmable) memory to enable users to implement private keys for secure access to program code.