Datasheet > MT8885

MT8885

更新时间： 2024-01-09 06:03:05

品牌	Logo	应用领域
MITEL		/
页数	文件大小	规格书
20页	353K
描述
Integrated DTMFTransceiver with Power Down & Adaptive Micro Interface

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中文翻译

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技术参数
数据手册

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MT8885 技术参数

是否Rohs认证：	不符合	生命周期：	Transferred
包装说明：	DIP, DIP24,.6	Reach Compliance Code：	unknown
风险等级：	5.85	JESD-30 代码：	R-PDIP-T24
JESD-609代码：	e0	端子数量：	24
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：	DIP
封装等效代码：	DIP24,.6	封装形状：	RECTANGULAR
封装形式：	IN-LINE	电源：	5 V
认证状态：	Not Qualified	子类别：	Telecom Signaling Circuits
最大压摆率：	11 mA	标称供电电压：	5 V
表面贴装：	NO	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 (Sn/Pb)	端子形式：	THROUGH-HOLE
端子节距：	2.54 mm	端子位置：	DUAL
Base Number Matches：	1

MT8885 数据手册

MT8885

Integrated DTMF Transceiver

with Power Down & Adaptive

Micro Interface

Advance Information

ISSUE 1

May 1995

Features

•

External power down pin

Ordering Information

MT8885AE 24 Pin Plastic DIP

•

Central office quality DTMF transmitter/

receiver

MT8885AN

MT8885AP

24 Pin SSOP

28 Pin PLCC

•

Low power consumption

High speed adaptive micro interface

Adjustable guard time

-40°C to +85°C

Automatic tone burst mode

The receiver section is based upon the industry

standard MT8870 DTMF receiver while the

Call progress tone detection to -30dBm

DTMF transmitter/receiver power down via

transmitter utilizes

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 MT8885 utilizes an adaptive micro interface,

which allows the device to be connected to a number

of popular microcontrollers with minimal external

logic. The MT8885 provides enhanced power down

features.

The transmitter and receiver may

Description

The MT8885 is a monolithic DTMF transceiver with

call progress filter.

technology offering low power consumption and high

reliability.

independently be powered down via register

control. A full chip power down pin provides simple

power and control capability.

It is fabricated in CMOS

Data

Row and

D/A

Transmit Data

Bus

∑

Column

TONE

Converters

Buffer

Counters

Status

Interrupt

Logic

Tone Burst

Gating Cct.

Control

Logic

IRQ/CP

Control

IN+

IN-

Dial

Tone

Filter

High Group

Filter

Digital

DS/RD

Algorithm

and Code

Converter

Control

I/O

Low Group

Filter

Control

OSC1

OSC2

Oscillator

Circuit

R/W/WR

RS0

Control

Logic

Receive Data

Steering

Logic

Bias

Circuit

V_DDV_RefV_SS

ESt

St/GT

PWDN

Figure 1 - Functional Block Diagram

4-51

12 3 4 5 6 7...20

中文翻译

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与MT8885相关器件

型号	品牌	获取价格	描述	数据表
MT8885AE	MITEL	获取价格	Integrated DTMFTransceiver with Power Down & Adaptive Micro Interface
MT8885AE1	MICROSEMI	获取价格	DTMF Signaling Circuit, CMOS, PDIP24, LEAD FREE, PLASTIC, MS-011AA, DIP-24
MT8885AE1	ZARLINK	获取价格	DTMF Signaling Circuit, CMOS, PDIP24, LEAD FREE, PLASTIC, MS-011AA, DIP-24
MT8885AN	MITEL	获取价格	Integrated DTMFTransceiver with Power Down & Adaptive Micro Interface
MT8885AN1	MICROSEMI	获取价格	DTMF Signaling Circuit, CMOS, PDSO24, 5.30 MM, LEAD FREE, MO-150AG, SSOP-24
MT8885ANR	MICROSEMI	获取价格	DTMF Signaling Circuit, CMOS, PDSO24,
MT8885ANR	ZARLINK	获取价格	DTMF Signaling Circuit, CMOS, PDSO24, 5.30 MM, MO-150AG, SSOP-24
MT8885ANR1	MICROSEMI	获取价格	DTMF Signaling Circuit, CMOS, PDSO24, 5.30 MM, LEAD FREE, MO-150AG, SSOP-24
MT8885ANR1	ZARLINK	获取价格	DTMF Signaling Circuit, CMOS, PDSO24, 5.30 MM, LEAD FREE, MO-150AG, SSOP-24
MT8885AP	MITEL	获取价格	Integrated DTMFTransceiver with Power Down & Adaptive Micro Interface

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