Circuits

Microphone Preamplifier IC suits audio applications.
Circuits

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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Circuits

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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Power Controllers

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.
Circuits

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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Circuits

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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Transceivers

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.
Circuits

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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Transceivers

Half Duplex RS485 Transceiver has 20 Mbps data rate.

Model SP1485E features typical transmitter and receiver skews of 2 and 5 ns and propagation delays of 20 and 30 ns respectively. Capable of driving up to 32 transceivers on one bus, it offers ESD protection of ±15 kV on I/O lines. Unit operates off of one +5 V supply and features fail-safe at receiver inputs. Additional features include 900 Â-µA supply current, multipoint transmission,...

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Parallel Port Transceiver has power-on protection feature.
Transceivers

Parallel Port Transceiver has power-on protection feature.

Low-voltage (3-3.6 V), high-speed transceiver IC model 74LVC161284TTR conforms to IEEE1284 parallel port interface standard, while model 74LVCZ161284ATTR also offers error-free power-up function. Each supplies IEEE1284-I and -II bi-directional parallel communications and has translation capability that allows outputs on cable side to interface with 5 V signal. The A port pins have 4 mA totem-pole...

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Active Mixer suits wireless and cable applications.
Electronic Mixers

Active Mixer suits wireless and cable applications.

LT5522 active downconverting mixer has RF input with on-chip transformer that is 50 ohm matched over wide frequency range. RF input and Local Oscillator (LO) ports can be driven differentially or single-ended with minimum external impedance matching components. Mixer provides third-order intercept performance of 25 dBm @ 900 MHz and 21.5 dBm @ 1.9 GHz; draws 56 mA supply current at 5 V; and comes...

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