¡ Semiconductor
MSM7620
Echo Canceler Characteristics (Refer to Characteristics Diagram)
Parameter
Echo Attenuation
Symbol
Condition
RIN = –10 dBm0
(5 kHz band white noise)
LRES E. R. L. (echo return loss)
= 6 dB
TD = 20 ms
ATT, GC, NLP: OFF
Min. Typ.
—
30
Cancelable Echo Delay Time for a
Single Chip or a Master Chip in a
Cascade
Cancelable Echo Delay Time for a
Slave Chip in a Cascade
TD RIN = –10 dBm0
(5 kHz band white noise)
E.R.L. = 6 dB
ATT, GC, NLP: OFF
TDS
—
—
—
—
Max. Unit
—
dB
23
ms
31
ms
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