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MT88L89AN PDF预览

MT88L89AN

更新时间: 2024-01-22 10:01:34
品牌 Logo 应用领域
MITEL 电信集成电路光电二极管
页数 文件大小 规格书
20页 355K
描述
3V Integrated DTMFTransceiver with Adaptive Micro Interface

MT88L89AN 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
包装说明:SOP,Reach Compliance Code:compliant
HTS代码:8542.39.00.01风险等级:5.7
JESD-30 代码:R-PDSO-G20JESD-609代码:e0
长度:12.8 mm湿度敏感等级:1
功能数量:1端子数量:20
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):240认证状态:Not Qualified
座面最大高度:2.65 mm标称供电电压:3 V
表面贴装:YES技术:CMOS
电信集成电路类型:DTMF SIGNALING CIRCUIT温度等级:INDUSTRIAL
端子面层:TIN LEAD端子形式:GULL WING
端子节距:1.27 mm端子位置:DUAL
处于峰值回流温度下的最长时间:30宽度:7.5 mm
Base Number Matches:1

MT88L89AN 数据手册

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MT88L89  
3V Integrated DTMF Transceiver  
with Adaptive Micro Interface  
Advance Information  
ISSUE 1  
May 1995  
Features  
Central office quality DTMF transmitter/  
receiver  
Ordering Information  
MT88L89AE  
20 Pin Plastic DIP  
Low voltage operation (2.7-3.6V)  
Adjustable guard time  
Automatic tone burst mode  
MT88L89AC  
MT88L89AS  
MT88L89AN  
MT88L89AP  
20 Pin Ceramic DIP  
20 Pin SOIC  
24 Pin SSOP  
28 Pin PLCC  
Call progress tone detection to -30dBm  
-40°C to +85°C  
Adaptive micro interface enables compatibility  
with existing MT8880/MT8888 designs  
The receiver section is based upon the industry  
standard MT8870 DTMF receiver while the  
DTMF transmitter/receiver power down via  
register control  
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.  
Applications  
Credit card systems  
Paging systems  
Repeater systems/mobile radio  
Interconnect dialers  
Personal computers  
The MT88L89 utilizes an adaptive micro interface,  
which allows the device to be connected to a number  
of popular microcontrollers with minimal external  
logic. The MT88L89 provides enhanced power down  
Description  
The MT88L89 is a monolithic DTMF transceiver with  
call progress filter.  
features.  
The transmitter and receiver may  
independently be powered down via register control.  
It is fabricated in CMOS  
technology offering low power consumption and high  
reliability.  
D0  
Data  
Row and  
D/A  
Transmit Data  
Bus  
D1  
D2  
D3  
Column  
TONE  
Converters  
Register  
Buffer  
Counters  
Status  
Register  
Interrupt  
Logic  
Tone Burst  
Gating Cct.  
Control  
Logic  
IRQ/CP  
Control  
Register  
A
IN+  
IN-  
GS  
+
-
Dial  
Tone  
Filter  
High Group  
Filter  
Digital  
DS/RD  
CS  
Algorithm  
and Code  
Converter  
Control  
Register  
B
I/O  
Control  
Low Group  
Filter  
OSC1  
OSC2  
Oscillator  
Circuit  
R/W/WR  
RS0  
Control  
Logic  
Receive Data  
Register  
Steering  
Logic  
Bias  
Circuit  
VDD VRef VSS  
ESt  
St/GT  
Figure 1 - Functional Block Diagram  
4-125  

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