Circuits

DC/DC Converter makes positive/negative regulated voltages.

Operating from 5-80 V at efficiencies up to 96%, LT3958 suits boost, flyback, SEPIC, and inverting power supply applications in industrial, automotive, medical, and telecom markets. It can generate positive or negative regulated output voltage with its 2 voltage feedback error amps and reference voltages. Along with programmable fixed or synchronizable operating frequency from 100 kHz to 1 MHz,...

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Digital PF Correction ICs offer high-performance design.

Model CS1500 active PF correction ICs are designed for power supplies such as laptop adapters, digital TVs, and PC power, and CS1600 is suited for electronic lighting ballasts. Available in 8-pin SOIC package, both digitally controlled, discontinuous conduction mode ICs are intended for use in supplies rated up to 300 W. They include EXL Core(TM) architecture with 53 digital algorithm...

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High-Frequency XO has built-in oscillation detector function.

Comprised of crystal oscillator (XO) module ICs operating from 1.6-5.5 V, PT7C5035 series supports 40-165 MHz (1.6-5.5 V) third overtone oscillation and fundamental oscillation modes. Voltage regulator drive reduces current consumption and crystal current, subsequently reducing oscillator characteristics supply voltage dependency. Output circuit comprises CMOS buffer than can operate at high...

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Serial Real-Time Clock Module transfers data via I²C bus.

Serial Real-Time Clock Module transfers data via I²C bus.

Model PT7C4337 clock/calendar features 2 programmable time-of-day alarms and programmable square-wave output. Date at end of month is automatically adjusted for months with fewer than 31 days, including corrections for leap year, and clock operates in either 24 or 12 hr format with AM/PM indicator. Operating from 1.8-5.5 V, unit has oscillator stop flay function and external quartz crystal...

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SFP+ Video Controller has dual digital LDD interface.

SFP+ Video Controller has dual digital LDD interface.

Model DS1876, with dual laser diode driver (LDD) interface, controls and monitors all transmitter functions for SFP+ optical modules and supports SFF-8472 specification. Automatic power control and laser modulation is controlled through 4 temperature-driven look-up tables with 10-bit DAC outputs. For each driver, unit monitors temperature, VCC, and transmit power and bias current, and also...

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SMT RF Chipset targets point-to-point radio markets.

SMT RF Chipset targets point-to-point radio markets.

Covering 38 and 42 GHz bands, SMT/WSD chipset integrates into point-to-point backbone radios. It includes high-directivity power detector in 0402 wafer scale package, up-converter with variable gain amplifier for 24 dB gain control, and 20 dB power amplifier with 1 W output. Buffer and multiplier, as well as low-noise receiver/down-converter (with noise figure under 4.5 dB), are also included....

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Overvoltage/Overcurrent Protector isolates portable electronics.

Overvoltage/Overcurrent Protector isolates portable electronics.

Featuring 2.5-5.5 V operation, Model LTC4362 utilizes 2% accurate 5.8 V overvoltage threshold to detect overvoltage event and responds within 1 -µs to isolate downstream components. Overvoltage protection up to 28 V is achieved with internal, avalanche rated, low RDS(ON) MOSFET. Device also monitors voltage drop across internal current sense resistor to provide 1.5 A overcurrent threshold....

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Microcontrollers suit motion detection applications.

Designed for development of products requiring control based on Passive Infrared motion detection, Zilog-® ZMOTION(TM) Detection and Control Solutions combine programmability and peripheral set of Flash Z8 Encore XP(TM) F082A microcontrollers with software algorithms. Pyro-electric sensor is interfaced directly to Sigma/Delta ADC input on microcontroller without AC coupling, gain, filtering, or...

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