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參數(shù)資料
| 型號： | MSM7718-01TS-K |
| 廠商： | OKI SEMICONDUCTOR CO., LTD. |
| 英文描述： | Color Coded Flat Cable, 3811/18 26 AWG, .050 (1.27) |
| 中文描述： | 回聲消除器帶ADPCM編解碼器 |
| 文件頁數(shù)： | 1/38頁 |
| 文件大小： | 231K |
| 代理商： | MSM7718-01TS-K |
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Semiconductor
MSM7718-01
Echo Canceler with ADPCM CODEC
GENERAL DESCRIPTION
The MSM7718, developed for PHS (Personal Handyphone System) applications, is a CMOS LSI
device and contains a line echo canceler and a single channel full-duplex ADPCM transcoder
that performs interconversion between voice-band analog signal and 32 kbps ADPCM data.
This device includes DTMF tone and several types of tone generation, transmit/receive data mute
and gain control, and VOX function and is best suited for master telephones in PHS applications.
FEATURES
Single 3 V power supply
ADPCM :
Full-Duplex single channel operation
Transmit/receive synchronous mode
PCM interface coding format :
Built-in line echo canceler
Echo attenuation : 30 dB (typ.)
Cancelable echo delay time :
Normal speech mode :
Line echo canceler expansion mode :
Serial PCM/ADPCM transmission data rate : 64 kbps to 2048 kbps
Low power consumption
Operating mode :
Power-down mode :
Two analog input gain adjustable amplifier stages
Analog output stage :
Master clock frequency :
Transmit/receive mute, transmit/receive programmable gain control
Built-in DTMF tone generator and various ringing tones generator
DTMF tone and call progress tone detection
Serial MCU interface control
Built-in VOX control
Transmit side :
Receive side :
Built-in 2100 Hz tone detection (bidirectional)
Package:
100-pin plastic TQFP (TQFP100-1414-0.50-K) (Product name : MSM7718-01TS-K)
V
DD
: 2.7 V to 3.6 V
ITU-T Recommendations G.726 (32 kbps)
μ
-law
23 ms (max.)
54 ms (max.)
Typically 66 mW (V
DD
= 3.0 V)
Typically 0.3 mW (V
DD
= 3.0 V)
Push-pull drive, (direct drive of 350
W
+ 120 nF)
9.600/19.200 MHz
Voice/silence detect
Background noise generation at the absence of voice signal
E2U0052-18-86
This version: Aug. 1998
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MSM7719-01 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Echo Canceler with ADPCM Transcoder |
| MSM7719-01TS-K | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Echo Canceler with ADPCM Transcoder |
| MSM7728 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Single Rail Linear CODEC |
| MSM7731 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Dual Echo Canceler & Noise Canceler with Dual Codec for Hands-Free |
| MSM7731-01 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Multifunction PCM CODEC (Voice Signal Processor) |
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