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ZL38001

Zarlink Semiconductor Inc
Part Number ZL38001
Manufacturer Zarlink Semiconductor Inc
Description Low-Voltage Acoustic Echo Canceller with Low ERL Compensation
Published Apr 16, 2005
Detailed Description ZL38001 Low-Voltage Acoustic Echo Canceller with Low ERL Compensation Data Sheet Features • • • • • • • • • • • Contains...
Datasheet PDF File ZL38001 PDF File

ZL38001
ZL38001

Overview
ZL38001 Low-Voltage Acoustic Echo Canceller with Low ERL Compensation Data Sheet Features • • • • • • • • • • • Contains two echo cancellers: 112 ms acoustic echo canceller Works with low cost voice codec.
ITU-T G.
711 or signed mag µ/A-Law, or linear 2’s comp Each port may operate in different format Advanced NLP design - full duplex speech with no switched loss on audio paths Fast re-convergence time: tracks changing echo environment quickly Adaptation algorithm converges even during Double-Talk Designed for exceptional performance in high background noise environments Provides protection against narrow-band signal divergence Howling prevention stops uncontrolled oscillation in high loop gain conditions Offset nulling of all PCM channels Serial micro-controller interface • • • • • • • • • • Ordering Information ZL38001DGA ZL38001QDC 36 Pin QSOP 48 Pin TQFP June 2004 -40° C to +85 ° C ST-BUS, GCI, or variable-rate SSI PCM interfaces User gain control provided for speaker path (-24 dB ...


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