Product Summary

The MSM7600 is an Echo Canceler. The MSM7600 uses a 19.2 MHz clock frequency to meet PHS, the 3 V power supply (2.7 V to 5.5 V), and compact packaging. Also, this device adds the howling detecter control pins and main clook output pins. The MSM7600 is a low-power CMOS IC device for canceling echo (in an acoustic system or telephone line) generated in a speech path.

Parametrics

MSM7600 absolute maximum ratings: (1)Power Supply Voltage, VDD: -0.3 to +7V; (2)Input Voltage, VIN: -0.3 to VDD +0.3V; (3)Power Dissipation, PD: 1W; (4)Storage Temperature, TSTG: -55 to +150℃.

Features

MSM7600 features: (1)Handles both acoustic echoes and telephone line echoes; (2)Cancelable echo delay time: MSM7602-001: For a single chip: 23 ms (max.); MSM7602-011: For a cascade connection (can also be used for a single chip); Master chip: 23 ms (max.); Slave chip: 31 ms (max.); Cancelable up to 209 ms (1 master plus 6 slaves); For a single chip: 23 ms (max.); (3)Echo attenuation: 30 dB (typ.); (4)Clock frequency: 19.2 MHz External input and internal oscillator circuit are provided; (5)Power supply voltage: 2.7 V to 5.5 V.

Diagrams

MSM7600 block diagram