Product Summary

The RF9957 is an integrated complete IF AGC amplifier and Quadrature Demodulator designed for the receive section of dual-mode CDMA/FM cellular and PCS applications. The RF9957 is designed to amplify received IF signals, while providing 100dB of gain control range, and demodulate to baseband I and Q signals. The RF9957 is manufactured on an advanced 15GHz FT Silicon Bipolar process, and is packaged in a standard miniature 24-lead plastic SSOP package.

Parametrics

RF9957TR13 absolute maximum ratings: (1)Supply Voltage: -0.5 to +5 VDC; (2)Power Down Voltage (VPD): -0.5toVCC+0.7 VDC; (3)Input RF Power: +3 dBm; (4)Ambient Operating Temperature: -40 to +85 °C; (5)Storage Temperature: -40 to +150 °C.

Features

RF9957TR13 features: (1)Supports Dual Mode Operation (CDMA and FM); (2)Digitally Controlled Power Down Mode; (3)2.7V to 3.3V Operation; (4)Quadrature LO Divider; (5)IF AGC Amp with 100dB Gain Control.

Diagrams

RF9957TR13 block diagram

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