參數(shù)資料
型號(hào)： M-8870-02T
廠商： CLARE INC
元件分類： 信令電路
英文描述： DTMF Receiver
中文描述： TELECOM, DTMF SIGNALING CIRCUIT, PDSO18
封裝： PLASTIC, SOIC-18
文件頁數(shù)： 1/9頁
文件大?。?/td> 301K
代理商： M-8870-02T
Part #
M-8870-01
M-8870-01SM
M-8870-01SMTR
M-8870-02
Description
18-pin plastic DIP
18-pin plastic SOIC
18-pin plastic SOIC, tape and reel
18-pin plastic DIP, power-down,
option
18-pin plastic SOIC, power-down,
option
18-pin plastic SOIC, power-down
option, tape and reel
M-8870-02SM
M-8870-02T
www.clare.com
DS-M8870-R3
M-8870
DTMF Receiver
1
Block Diagram
Pin Configuration
Ordering Information
Features
Low Power Consumption
Adjustable Acquisition and Release Times
Central Office Quality and Performance
Power-down and Inhibit Modes (-02 only)
Inexpensive 3.58 MHz Time Base
Single 5 Volt Power Supply
Dial Tone Suppression
Applications
Telephone switch equipment
Remote data entry
Paging systems
Personal computers
Credit card systems
Description
The M-8870 is a full DTMF Receiver that integrates
both bandsplit filter and decoder functions into a single
18-pin DIP or SOIC package. Manufactured using
CMOS process technology, the M-8870 offers low
power consumption (35 mW max) and precise data
handling. Its filter section uses switched capacitor
technology for both the high and low group filters and
for dial tone rejection. Its decoder uses digital counting
techniques to detect and decode all 16 DTMF tone
pairs into a 4-bit code. External component count is
minimized by provision of an on-chip differential input
amplifier, clock generator, and latched tri-state inter-
face bus. Minimal external components required
include a low-cost 3.579545 MHz color burst crystal, a
timing resistor, and a timing capacitor.
The M-8870-02 provides a “power-down” option
which, when enabled, drops consumption to less
than 0.5 mW. The M-8870-02 can also inhibit the
decoding of fourth column digits (see Tone Decoding
table on page 5).
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M-8880 制造商:CLARE 制造商全稱:Clare, Inc. 功能描述:M-8880 DTMF Transceiver
M-8880-01P 功能描述:IC TRANSCEIVER DTMF CMOS 20-DIP RoHS:是 類別:集成電路 (IC) >> 接口 - 電信 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS 產(chǎn)品變化通告:Product Discontinuation 06/Feb/2012 標(biāo)準(zhǔn)包裝:750 系列:*
M-8880-01SM 功能描述:IC TRANSCEIVER DTMF CMOS 20-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 電信 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS 產(chǎn)品變化通告:Product Discontinuation 06/Feb/2012 標(biāo)準(zhǔn)包裝:750 系列:*
M-8880-01T 功能描述:IC TRANSCEIVER DTMF CMOS 20-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 電信 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS 產(chǎn)品變化通告:Product Discontinuation 06/Feb/2012 標(biāo)準(zhǔn)包裝:750 系列:*
M-8888 制造商:CLARE 制造商全稱:Clare, Inc. 功能描述:DTMF Transceiver
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