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)