Dual-band RF front-end

DESCRIPTION The SA1920 is an integrated dual-band RF front-end that operates at both cellular (AMPS, GSM and TDMA) and PCS/DCS (TDMA and GSM) frequencies, and is designed in a 13 GHz fT BiCMOS process—QUBiC1. The low-band is a combined low-noise amplifier (LNA) and mixer. The LNA has a 1.7 dB noi

Dual-band RF front-end

RDS / RBDS decoder

The BU1920, BU1920F and BU1920FS are RDS / RBDS decoders that employ a digital PLL. It has a built-in anti-aliasing filter and an eight-stage BPF (switched-capacitor filter). Linear CMOS circuitry is used for low current dissipation. Features 1) Low current dissipation. 2) Two-stage anti-a

RDS / RBDS decoder

The BU1920, BU1920F and BU1920FS are RDS / RBDS decoders that employ a digital PLL. It has a built-in anti-aliasing filter and an eight-stage BPF (switched-capacitor filter). Linear CMOS circuitry is used for low current dissipation. Features 1) Low current dissipation. 2) Two-stage anti-a

RDS / RBDS decoder

The BU1920, BU1920F and BU1920FS are RDS / RBDS decoders that employ a digital PLL. It has a built-in anti-aliasing filter and an eight-stage BPF (switched-capacitor filter). Linear CMOS circuitry is used for low current dissipation. Features 1) Low current dissipation. 2) Two-stage anti-a

Three-Phase Brushless Motor Driver for Office Automation Applications

Functions and Features • The LB1920 is an output current-improved version of the LB1824 • Three-phase bipolar brushless motor driver • Digital speed control • Thermal shutdown circuit • Start/stop pin provided • Lock detector output • Crystal oscillator and divider circuits • FG and error