GENERAL DESCRIPTION

The MSM7575, developed for advanced digital cordless telephone systems, is a single channel full duplex CODEC which performs mutual transcoding between the analog voice band signal and the 64 kbps PCM serial data.

FEATURES

? Single 3 V Power Supply Operation VDD: 2.7 V to ? 3.6 V

? Transmit/Receive Full-Duplex Single Channel Operation?

? Transmit/Receive Synchronous Mode Only

? PCM Interface Data Format : A-law/μ-law/linear (2s complement) Selectable

? Serial PCM Transmission Data Rate : 64 kbps to 2048 kbps?

? Low Power Consumption

Operating Mode : 24 mW Typ. (VDD = 3.0 V)

Power-Down Mode : 0.03 mW Typ. (VDD = 3.0 V)

? Two Analog Input Amplifier Stages: Externally Gain Adjustable?

? Analog Output Stage

Push-pull Drive (direct drive of 350 Ω + 120 nF)

? Master Clock Frequency : 9.600/19.200 MHz Selectable?

? Transmit/Receive Mute, Transmit/Receive Programmable Gain Control

? Side Tone Path with Programmable Attenuation (8-step Level Adjustment)?

? Built-in DTMF Tone Generator

? Built-in Various Ringing Tones Generator?

? Built-in Various Ring Back Tone Generator

? Control by Serial MCU Interface?

? Built-in VOX Control

Transmit side : Voice/Silence Signal Detect

Receive side : Background Noise Generation

? Built-in Op-amps and Analog Switches for Various Analog Interfaces.?

? Package:

64-pin plastic QFP (QFP64-P-1414-0.80-BK)(Product name : 7575GS-BK)