Datasheet > MT88E45AS

MT88E45AS

更新时间： 2024-01-23 00:44:05

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
27页	116K
描述
4-Wire Calling Number Identification Circuit 2(4-Wire CNIC2)

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MT88E45AS 技术参数

是否无铅：	含铅	是否Rohs认证：	不符合
生命周期：	Active	零件包装代码：	SOIC
针数：	20	Reach Compliance Code：	unknown
风险等级：	5.68	Is Samacsys：	N
JESD-30 代码：	R-PDSO-G20	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
封装等效代码：	SOP20,.4	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE	电源：	3/5 V
认证状态：	Not Qualified	子类别：	Telephone Circuits
最大压摆率：	8 mA	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子形式：	GULL WING	端子节距：	1.27 mm
端子位置：	DUAL	Base Number Matches：	1

MT88E45AS 数据手册

MT88E45

4-Wire Calling Number Identiﬁcation Circuit 2

(4-Wire CNIC2)

Advance Information

DS5143

ISSUE 2

March 1999

Features

•

Compatible with:

Ordering Information

MT88E45AS 20 Pin SOIC

-40°C to 85°C

• Bellcore GR-30-CORE, SR-TSV-002476,

ANSI/TIA/EIA-716, draft TIA/EIA-777;

• ETSI ETS 300 778-1 (FSK only variant) & -2;

• BT (British Telecom) SIN227 & SIN242

Bellcore ‘CPE Alerting Signal’ (CAS), ETSI

‘Dual Tone Alerting Signal’ (DT-AS), BT Idle

State and Loop State ‘Tone Alert Signal’

detection

Description

•

The MT88E45 is a low power CMOS integrated

circuit suitable for receiving the physical layer signals

used in North American (Bellcore) Calling Identity

Delivery on Call Waiting (CIDCW) and Calling

Identity Delivery (CID) services. It is also suitable for

ETSI and BT Calling Line Identity Presentation

(CLIP) and CLIP with Call Waiting services.

•

1200 baud Bell 202 and CCITT V.23 FSK

demodulation

Separate differential input ampliﬁers with

adjustable gain for Tip/Ring and telephone

hybrid or speech IC connections

Selectable 3-wire FSK data interface (bit

stream or 1 byte buffer)

Facility to monitor the stop bit for framing error

check

FSK Carrier detect status output

3 to 5V +/- 10% supply voltage

Uses 3.579545MHz crystal or ceramic

resonator

•

The MT88E45 contains a 1200 baud Bell 202/CCITT

V.23 FSK demodulator and a CAS/DT-AS detector.

Two input op-amps allow the MT88E45 to be

connected to both Tip/Ring and the telephone hybrid

or speech IC receive pair for optimal CIDCW

•

telephone

architectural

implementation.

FSK

demodulation is always on Tip/Ring, while CAS

detection can be on Tip/Ring or Hybrid Receive. Tip/

Ring CAS detection is required for Bellcore’s

proposed Multiple Extension Interworking (MEI) and

BT’s on-hook CLIP. A selectable FSK data interface

allows the data to be processed as a bit stream or

extracted from a 1 byte on chip buffer. Power

management has been incorporated to power down

the FSK or CAS section when not required. Full chip

power down is also available. The MT88E45 is

suitable for applications using a ﬁxed power source

(with a +/-10% variation) between 3 and 5V.

•

Low power CMOS with power down

Applications

•

Bellcore CID (Calling Identity Delivery) and

CIDCW (Calling Identity Delivery on Call

Waiting) telephones and adjuncts

•

ETSI, BT CLIP (Calling Line Identity

Presentation) and CLIP with Call Waiting

telephones and adjuncts

•

Fax and answering machines

Computer Telephony Integration (CTI) systems

MODE

FSKen+Tip/Ring CASen

DATA

IN1+

Anti-Alias

Filter

FSK

Bandpass

FSK

Demodulator

Data Timing

Recovery

DCLK

IN1-

GS1

IN2+

IN2-

PWDN

FSKen

CASen

Carrier

Detector

DR/STD

Hybrid CASen

STD

2130Hz

Bandpass

GS2

PWDN

CASen

MODE

FSKen

Guard

Time

Tone

Detection

Algorithm

ST/GT

EST

Bias

Generator

REF

2750Hz

Bandpass

Control Bit

Decode

PWDN

Oscillator

Vdd

Vss

CASen

OSC1

OSC2

CB2

CB0 CB1

Figure 1 - Functional Block Diagram

12 3 4 5 6 7...27

中文翻译

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与MT88E45AS相关器件

型号	品牌	获取价格	描述	数据表
MT88E45ASR	ZARLINK	获取价格	Telephone Calling No Identification Circuit, CMOS, PDSO20, 0.300 INCH, SOIC-20
MT88E45B	ZARLINK	获取价格	4-Wire Calling Number Identification Circuit 2
MT88E45BN	MICROSEMI	获取价格	Telephone Circuit, CMOS, PDSO20
MT88E45BN	ZARLINK	获取价格	4-Wire Calling Number Identification Circuit 2
MT88E45BN1	ZARLINK	获取价格	4-Wire Calling Number Identification Circuit 2 (4-Wire CNIC2)
MT88E45BNR	MICROSEMI	获取价格	Telephone Circuit, CMOS, PDSO20
MT88E45BNR	ZARLINK	获取价格	Telephone Calling No Identification Circuit, CMOS, PDSO20, 5.30 MM, SSOP-20
MT88E45BNR1	ZARLINK	获取价格	4-Wire Calling Number Identification Circuit 2 (4-Wire CNIC2)
MT88E45BS	ZARLINK	获取价格	4-Wire Calling Number Identification Circuit 2
MT88E45BS	MICROSEMI	获取价格	Telephone Circuit, CMOS, PDSO20

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