Circuits

Single Chip Solution is suited for digital flat-panel TVs.

Built around 32-bit ST20 microcontroller running at 100 MHz, STV3550 consists of LCD-TV processor that offers all digital functions needed to implement matrix display TV sets. Chip features unified memory architecture, programmable digital video output stage, and flexible horizontal and vertical format conversion in addition to adaptive progressive output mode. Built in 0.18-micron CMOS...

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Chipsets power dual TV and PVR set-top boxes.

Chipsets power dual TV and PVR set-top boxes.

Built using .13 micron CMOS technology, STi5528 and STi4629 utilize two 32-bit RISC processors. They decode 2 separate video and audio streams, allowing users to connect 2 televisions to one set-top box. While decoding audio and video streams, chipsets may also record 2 channels to hard disk. For management of real-time functions, STi5528 employs ST20 core running at 166 MHz. For application...

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Microphone Preamplifier IC suits audio applications.

Microphone Preamplifier IC suits audio applications.

Packaged in 28-lead SSOP, PGA2500 digitally controlled microphone preamplifier IC (integrated circuit) is suited for use as front end for analog-to-digital converters in audio applications. It has gain range of 10-65 dB, 1 dB per step, and gain settings and internal functions are programmed using 16-bit control word loaded via serial port interface. Features include differential signal path,...

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Photo-Detector IC features 6 nsec settling times.

Suited for use in 8x and 12x writeable DVD drives, SP8052 Photo Detector Integrated Circuit features slew rates of 500 V/Â-µsec, 12 nsec saturation recovery times, and 150 MHz bandwidth. Along with 4 data detection channels, 4 tracking channels, and 2 summing channels, 2 write channels are implemented for high-speed DVD write functionality. Unit has 3 selectable gain settings used to adjust...

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Synchronous Step-Down Controllers suit 12 V applications.

Available in 10-pin MSOP package, Models SP6134 and SP6137 offer frequencies of 600 and 900 kHz, respectively, and include all provisions for loop stability and soft-start. PWM architecture drives dual NFET switches with efficiencies up to 94%. Controllers feature programmable output voltage down to 0.8 V and maintain 1.5% accuracy over wide range of line, load, and temperature conditions....

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PWM Controllers suit switch-mode power supplies.

PWM Controllers suit switch-mode power supplies.

Soft-switching PWM controllers simplify implementation of active clamp/reset topologies and include auxiliary active clamp output driver. Peak current-mode units program critical delays to achieve proper active clamp operation and deliver zero-voltage switching to primary side MOSFET switches. Devices include internal programmable slope compensation circuit, maximum duty cycle limit, and 1 MHz...

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Integrated Circuit is capable of 311 Mbits/sec data rates.

Operating at OC6 speeds, AHA4541 single-chip Turbo Product Code (TPC) Forward Error Correction Encoder/Decoder is capable of 311 Mbits/sec data rates, with max channel rates of 360 Mbits/sec. Device integrates TPC encoder and decoder, can be operated in full duplex mode, and supports block sizes from 256 bits to 16 Kbits. Features include flow control, phase locking, DVB-type scrambler, helical...

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Radio Frequency Chip complies with IEEE 802.15.4 standard.

Model EM2420 combines transceiver with embedded networking software that can run on low-power microprocessors. It operates on 16 channels in 2.4 GHz ISM band with hardware-based, AES 128-bit encryption for secure communications. EmberNet networking protocol stack provides sending and receiving over low bitrate wireless networks. Unit is ZigBee ready and complies with 802.15.4 standard, which...

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Dual Wire Bus Buffer allows connection on demand.

Dual Wire Bus Buffer allows connection on demand.

Available in 10-pin MSOP, addressable LTC4302-1/LTC4302-2 is I2 C and SMBus compatible and provides capacitive buffering, rise time acceleration, and input to output connection control. It maintains electrical isolation between backplane and peripheral board until Vcc supplies are valid and IC receives command to initiate connection. Users can select one of 32 possible I2 C addresses using...

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