MSM7620 - OKI electronic componets

MSM7620 Echo Canceler

The MSM7620 is an improved version of the MSM7520 with the same basic configuration. The MSM7620 includes following improvements: a modified through mode, timing control of the control pin input, and a thinner package. The MSM7620 also provides a pin-for-pin replacement with the MSM7520. The MSM7620 is a low-power CMOS IC device for canceling echo (in an aco.

Features

• Handles both acoustic echoes and telephone line echoes.
• Cancelable echo delay time: MSM7620-001 ... For a single chip: 23 ms (max.) MSM7620-011 ... 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 213 ms (one master plus six slaves) For a single chip: 23 ms (max.)
• Echo attenuation : 30 dB (typ.)
• Clock frequency : 18 MHz (36 MHz cannot be used) External input and internal oscillator circuit are provided.
• Power supply voltage : 5 V (4.5 V to 5.5 V)
• Power consumption : 150 mW (.