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ML7202-001 Datasheet(PDF) 1 Page - LAPIS Semiconductor Co., Ltd. |
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ML7202-001 Datasheet(HTML) 1 Page - LAPIS Semiconductor Co., Ltd. |
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1 / 65 page  FEDL7202-001-01 Issue Date: Sep. 08, 2004 ML7202-001 2-Channel Echo Canceler with Multifunction ADPCM Transcoder 1/65 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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