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DialICsDTMFCM8870PI DTMF 雙音多頻接收解碼芯片 DIP-18直插封裝
 CM8870PI DTMF 雙音多頻接收解碼芯片 DIP-18直插封裝
型號:  CM8870PI
品牌:  CMD
封裝:  DIP
數量:  2380
單價:  2.40
咨詢:    信琪電子  點擊這里給我發消息
電話: 0755-8368 1282    傳真:0755-8368 1282
E-Mail: sales@xinqi.cn  QQ:1367904903
 

Product Description

The CAMD CM8870/70C provides full DTMF receiver capability by integrating both the band-split filter and digital decoder functions into a single 18-pin DIP, SOIC, or 20-pin PLCC package. The CM8870/70C is manufactured using state-of-the-art CMOS process technology for low power consumption (35mW, MAX) and precise data handling. The filter section uses a switched capacitor technique for both high and low group filters and dial tone rejection. The CM8870/70C decoder uses digital counting techniques for the detection and decoding of all 16 DTMF tone pairs into a 4-bit code. This DTMF receiver minimizes external component count by providing an on-chip differential input amplifier, clock generator, and a latched three-state interface bus. The on-chip clock generator requires only a low cost TV crystal or ceramic resonator as an external component.

Features
- Full DTMF receiver
- Less than 35mW power consumption
- Industrial temperature range
- Uses quartz crystal or ceramic resonators
- Adjustable acquisition and release times
- 18-pin DIP, 18-pin DIP EIAJ, 18-pin SOIC, 20-pin PLCC

Applications
- PABX
- Central office
- Mobile radio
- Remote control
- Remote data entry
- Call limiting
- Telephone answering systems
- Paging systems

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秒速赛车开奖结果
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