Rx ASIC for CDMA, AMPS, and PCS Applications

The CX74001 Application-Specific Integrated Circuit (ASIC) is a triple-mode, dual band receiver (Rx) intended for use in Code Division Multiple Access (CDMA) portable phones in both cellular and Personal Communications System (PCS) bands, as well as Advanced Mobile Phone System (AMPS) mode.

Distinguishing Features

• Supports single and dual-band, and tri-mode handsets

• Battery cell operation (2.7 V < Vcc < 3.3 V)

• Dual Low Noise Amplifiers (800 MHz / 1900 MHz)

• PCS LNA With Bypass Feature

• Three-Step Cellular LNA Gain

• I/Q Interface

• Dual 200-600 MHz VHF Oscillators

• VCO On/Off control For Standby Current Optimization

• CDMA Single IF Feature

• 48-pin, 7 x 7 mm RF Land Grid Array (RFLGA™) package with down-set paddle.

Applications

• Cellular and PCS band phones

• CDMA and AMPS modes in the cellular band

• AMPS

• CDMA-US

• CDMA-Japan

• CDMA mode in the PCS band

• PCS-US

• PCS-Korea