Circuits

Quickfilter Technologies WideAudio Technology Selected for Sirius XM Internet Radio

Quickfilter QF1Da512 Chip Implements All Audio Processing on New SIRIUS XM TTR1 Table-Top Internet Radio Date: September 14, 2009 ALLEN, TX - Quickfilter Technologies today announced that its WideAudio(TM) technology has been selected by SIRIUS XM Radio for use in its new table-top Internet radio, the TTR1. WideAudio technology enables stereo widening (spatialization), along with two channels of...

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Microchip's Reference Design for Digital Interleaved Power Factor Correction (PFC) Increases Power Efficiency

Microchip's Reference Design for Digital Interleaved Power Factor Correction (PFC) Increases Power Efficiency

Free Reference Design Helps Designers of Green Power-Supply Products Lower Costs, Reduce Size and Improve Power Efficiency via Digital Power Conversion CHANDLER, Ariz., Sept. 8, 2009 [NASDAQ: MCHP] - Microchip Technology Inc., a leading provider of microcontroller and analog semiconductors, today announced the Digital Interleaved Power Factor Correction (PFC) Reference Design, which demonstrates...

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LED Driver integrates temperature management control.

LED Driver integrates temperature management control.

Offered in 20-pin thermally enhanced TSSOP, LM3424 drives up to 18 high-brightness LEDs in series with output current above 2 A (typ). It contains all features to regulate currents based on buck, boost, SEPIC, flyback, and buck-boost topologies. Temperature management control, thermal foldback, accelerates and facilitates design of thermal system. It lets lighting designers can program...

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Audio Op Amp delivers low noise and distortion.

Housed in SO-8 package, Model OPA1612 achieves 1.1 nV √Hz noise density with ultra-low distortion of 0.000015% at 1 kHz. Rail-to-rail output swing to within 600 mV with 2 W load maximizes dynamic range. Featuring wide supply range of -

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HF RFID Reader IC targets 13.56 MHz reader applications.

HF RFID Reader IC targets 13.56 MHz reader applications.

With ISO 14443 A & B data framing on chip and automatic modulation depth adjustment, AS3910 HF RFID Reader IC enables read ranges of up to 30 cm with no need for any external booster circuitry and suits ISO 15693 applications. It delivers 1 W of output power from 3.3 V supply and antenna auto-tuning feature makes AS3910 suited for portable applications and products using PCB antennas.

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DC/DC Converter operates up to junction temp of 150

Operating within VIN range of 3.6-33 V, Model LT3972 features internal 4.6 A switch that can deliver up to 3.5 A of continuous output current to voltages as low as 0.79 V. Burst Mode-® operation keeps quiescent current under 75 -µA, while overvoltage lockout protects against transients as high as 62 V, making IC suited for load dump and cold-crank conditions in automotive applications....

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HDMI Chip provides ESD protection.

Housed in 16-lead QFN package, Model HDMI2C1-5DIJ facilitates design of HDMI-compliant connections for high-definition products such as set-top boxes, Blu-ray players, and HDTVs. Unit provides signal boosting capability and provides ESD protection as required by HDMI specification, achieving 8 kV contact-discharge. Integrated level-shifting circuitry allows low-voltage control signals to be put...

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Supervisory Circuits monitor power in portable devices.

Models ADM6326 and ADM6346 microprocessor supervisory circuits feature active low push-pull reset output, while ADM6328/ADM6348 have active low open-drain output requiring external pull-up resistor. All models offer 500 nA supply current and provide reset output during powerup, powerdown, and brownout conditions. On power-up, internal timer holds reset for at least 100 ms, which keeps...

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