ZL38003
AEC with Noise Reduction & Codecs for Digital Hands-Free Communication
Overview
| This product is not recommended for new design. Please use Timberwolf™ audio processor for new design. The ZL38003 is an Acoustic Echo Canceller (AEC) with dual codec. The ZL38003 provides 127 ms of acoustic echo cancellation, which makes it ideal for hand free car kits, and speaker phones designs. Each of the codecs in the dual codec can be connected to 1 of 4 four analog ports through a cross point switch. Also, the network side can be routed to a digital PCM interface that input/outputs either linear 2's complement or A-/mu law commanded PCM data. |
Simplified Block Diagram
Typical Applications
- Hands-free car kits
- Full duplex speaker-phone for digital telephone
- Echo cancellation for video conferences
- Intercom Systems
- Security Systems
Features & Benefits
- Handles up to -6 dB acoustic echo return loss
- 127 ms acoustic echo canceller
- Provides up to 12 dB of Noise Reduction
- Operate in two modes, Dual Analog mode and single Analog mode (other port is digital PCM)
- PCM Data Formats in single Port mode- 16-bit Linear, companded ITU-T A-law or U-law
- Advanced NLP design - full duplex speech with no switched loss on audio paths
- Tracks changing echo environment quickly
- Adaptation algorithm converges even during Double-Talk
- Howling prevention eliminates uncontrolled oscillation in high loop gain conditions
- Two 16 bit linear ACD and DAC that meet ITU-T G.711/712 recommendations
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Ordering
ECHO Canceller Chip 1-CH G.711/G.712 Without Tone Detection 81-Pin CABGA Tray
| Distributor | SKU | Stock | MOQ | Pkg | |
|---|---|---|---|---|---|
| Microchip Technology Inc. | .. | .. | .. | .. | Buy Now |
| Arrow Electronics | ZL38003GMG2 | 213 | 1 | .. | Buy Now |
