ML7202-001 Datasheet, PDF (1/65 Pages) List of Unclassifed Manufacturers – 2-Channel Echo Canceler with Multifunction ADPCM Transcoder

ML7202-001
2-Channel Echo Canceler with Multifunction ADPCM Transcoder
FEDL7202-001-01
Issue Date: Sep. 08, 2004
GENERAL DESCRIPTION
The ML7202-001 is an LSI supporting 2-channel transmit/receive. Each channel of transmit/receive has a built-in
line echo canceler and full-duplex ADPCM transcoder. The ML7202-001, which performs functions such as the
DTMF tone and single tone generation, and tone detection, transmit/receive data mute, gain control, and VOX, is
ideally suited to applications such as basestations of ADPCM-based cordless telephone systems like
Asian-prevailing PHS (Personal Handyphone System).
FEATURES
 Single 3.3 V power supply (DVDD1, 2, AVDD: 3.0 to 3.6 V)
 ADPCM: ITU-T Recommendation G.726 (32 kbps)
 PCM interface code format: ITU-T Recommendation G.711 (64 kbps), -law or A-law selectable
 Built-in echo canceler
Echo attenuation: 30 dB （typ.） white noise
Cancelable echo delay time: 64ms （max）
 Serial ADPCM and PCM transmission rate: 64 to 2048 kbps
 Digital interface synchronization mode: Long Frame Sync
 Time slot assignment
-law/A-law setting: Supports 32 slots (BCLK setting: 2.048 MHz external input)
 Transmit/receive mute function and transmit/receive programmable gain setting
Built-in DTMF tone and single tone generators
Single tone detector
2100 Hz (default) 
Built-in VOX functions
Transmit side : Voice/silence detection
Receive side : Background noise generation during silence
Parallel microcontroller interface
Master clock frequency: 19.2 MHz
Hardware and software power-down mode
Operating temperature range: –40°C to +85°C
 Package:
64-pin plastic TQFP (TQFP64-P-1010-0.50-K) (ML7202-001TB)
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