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參數資料
| 型號： | CM8870 |
| 廠商： | California Micro Devices Corporation |
| 英文描述： | CMOS Integrated DTMF Receiver |
| 中文描述： | CMOS集成雙音多頻接收器 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 231K |
| 代理商： | CM8870 |
2000 California Micro Devices Corp. All rights reserved.
9/28/2000
1
CM8870/70C
CALIFORNIA MICRO DEVICES
215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com
CMOS Integrated DTMF Receiver
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
CM8870C
—
Power down mode
—
Inhibit mode
—
Buffered OSC3 output (PLCC package only)
CM8870C is fully compatible with CM8870 for 18-pin
devices by grounding pins 5 and 6
Product Description
The CAMD CM8870/70C provides full DTMF receiver capability by integrating both the bandsplit 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 ampli-
fier, 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.
Applications
PABX
Central office
Mobile radio
Remote control
Remote data entry
Call limiting
Telephone answering systems
Paging systems
相關PDF資料 |
PDF描述 |
|---|---|
| CM8870CPI | CMOS Integrated DTMF Receiver |
| CM8870PI | CMOS Integrated DTMF Receiver |
| CM8880-1EI | CMOS Integrated DTMF Transceiver |
| CM8880-1LI | CMOS Integrated DTMF Transceiver |
| CM8880-1PI | CMOS Integrated DTMF Transceiver |
相關代理商/技術參數 |
參數描述 |
|---|---|
| CM8870/70C | 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:CMOS Integrated DTMF Receiver |
| CM88701PEI | 制造商:CAL MICRO 功能描述:* |
| CM887070C | 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:CMOS Integrated DTMF Receiver |
| CM8870-70C | 制造商:CALMIRCO 制造商全稱:California Micro Devices Corp 功能描述:CMOS Integrated DTMF Receiver |
| CM8870C | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DTMF Receiver |
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