MSM7575 Overview
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. This device performs DTMF tone and several kinds of tone generation, transmit/receive data mute and gain control, side-tone pass and its gain control, and VOX function. Using advanced circuit technology,...
MSM7575 Key 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 (2's plement) 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 W␣ + 120 nF)
- Master Clock Frequency : 9.600/19.200 MHz Selectable
- Transmit/Receive Mute, Transmit/Receive Programmable Gain Control