GENERAL DESCRIPTION
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.

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 (typ.) When powered down: 20 mW (typ.)
• Package options:
    32-pin plastic SSOP (SSOP32-P-640-0.80-K) (Product name : MSM7620-001GS-K)
    64-pin plastic QFP (QFP64-P-1414-0.80-BK) (Product name : MSM7620-011GS-BK)