GENERAL DESCRIPTION

The ML7021 is an improved version of the MSM7602 with the reduced cancelable echo delay time and additional 2100Hz tone detection function.

The ML7021 is a low-power CMOS device for canceling echo (in an acoustic system or telephone line) generated in a speech path.

FEATURES

• Tone disable function

• Cancelable echo delay time:

   For a single chip: 8 ms (max.)

• Echo attenuation : 30 dB (typ.)

• Clock frequency : 19.2 MHz

                          External input and internal oscillator circuit are provided.

• Power supply voltage : 2.7 V to 5.5 V

• Package:

   28-pin plastic SSOP (SSOP28-P-485-0.65-K) (Product name : ML7021MB)