參數(shù)資料
型號(hào)： MT8888CS
廠商： Mitel Networks Corporation
英文描述： Integrated DTMFTransceiver with Intel Micro Interface
中文描述： 綜合DTMFTransceiver與英特爾微型接口
文件頁(yè)數(shù)： 1/16頁(yè)
文件大?。?/td> 302K
代理商： MT8888CS
4-91
Features
Central office quality DTMF transmitter/receiver
Low power consumption
High speed Intel micro interface
Adjustable guard time
Automatic tone burst mode
Call progress tone detection to -30dBm
Applications
Credit card systems
Paging systems
Repeater systems/mobile radio
Interconnect dialers
Personal computers
Description
The MT8888C is a monolithic DTMF transceiver with
call progress filter. It is fabricated in CMOS
technology offering low power consumption and high
reliability.
The receiver section is based upon the industry
standard
MT8870
DTMF
transmitter utilizes a switched capacitor D/A
converter for low distortion, high accuracy DTMF
signalling. Internal counters provide a burst mode
such that tone bursts can be transmitted with precise
timing. A call progress filter can be selected allowing
a microprocessor to analyze call progress tones.
receiver
while
the
The MT8888C utilizes an Intel micro interface, which
allows the device to be connected to a number of
popular microcontrollers with minimal external logic.
The MT8888C-1 is functionally identical to the
MT8888C except the receiver is enhanced to accept
lower level signals, and also has a specified low
signal rejection level.
Ordering Information
MT8888CE/CE-1
MT8888CC/CC-1
MT8888CS/CS-1
MT8888CN/CN-1
-40°C to +85°C
20 Pin Plastic DIP
20 Pin Ceramic DIP
20 Pin SOIC
24 Pin SSOP
Figure 1 - Functional Block Diagram
TONE
IN+
IN-
GS
OSC1
OSC2
V
DD
V
Ref
V
SS
ESt
St/GT
D0
D1
D2
D3
IRQ/CP
RD
CS
R/W
RS0
∑
D/A
Converters
Row and
Column
Counters
Transmit Data
Register
Data
Bus
Buffer
Tone Burst
Gating Cct.
+
-
Oscillator
Circuit
Bias
Circuit
Control
Logic
Digital
Algorithm
and Code
Converter
Control
Logic
Steering
Logic
Status
Register
Control
Register
A
Control
Register
B
Receive Data
Register
Interrupt
Logic
I/O
Control
Low Group
Filter
High Group
Filter
Dial
Tone
Filter
ISSUE 2
May 1995
MT8888C/MT8888C-1
Integrated DTMFTransceiver
with Intel Micro Interface
相關(guān)PDF資料
PDF描述
MT8888CC-1 Integrated DTMFTransceiver with Intel Micro Interface
MT88E39 CMOS Calling Number Identification Circuit(CNIC1.1)
MT88E39AS XLR Style Audio Connector
MT88E43B Extended Voltage Calling Number Identification Circuit (ECNIC)(擴(kuò)展電壓主叫識(shí)別電路（接收傳送的物理層信號(hào)）)
MT88L85 3V Integrated DTMFTransceiver with Power Down & Adaptive Micro Interface
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MT8888CS1 制造商:Microsemi Corporation 功能描述:DTMF TXRX 3.58MHz CMOS 5V 20-Pin SOIC Tube 制造商:Microsemi Corporation 功能描述:DTMF TXRX 3.58MHZ CMOS 5V 20SOIC - Rail/Tube 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TXRX DTMF 20SOIC 制造商:Microsemi Corporation 功能描述:IC TXRX DTMF 20SOIC
MT8888CS-1 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Integrated DTMFTransceiver with Intel Micro Interface
MT8888CSR 制造商:Microsemi Corporation 功能描述:
MT8888CSR1 制造商:Microsemi Corporation 功能描述:DTMF TXRX 3.58MHZ CMOS 5V 20SOIC - Tape and Reel
MT8889C 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Integrated DTMF Transceiver with Adaptive Micro Interface
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