MT88E43AE Просмотр технического описания (PDF) - Zarlink Semiconductor Inc

Номер в каталоге

Компоненты Описание

производитель

MT88E43AE

Extended Voltage Calling Number Identification Circuit 2

Zarlink Semiconductor Inc 

MT88E43

Data Sheet

TIP / A

RING / B

22nF

5%

22nF

5%

Vdd

1N4003

R4

R1

1N4003

Vdd

1N4003

R4

R1

1N4003

464K

100nF

10%

Vdd

150K

5%

1N5231B

330nF 12K1

10% 5%

Vdd Motorola

4N25

464K

5%

200K

5%

10nF

NOTE: Resistors must have 1% tolerance, capacitors have 20%

tolerance unless specified otherwise.

: Bridge rectifier diodes are 1N914.

: For BT Application C=0.1µF ±5%, R3=422kΩ ±1%, R2=422kΩ ±1%

: For applications where CAS speech immunity is required (e.g. CIDCW)

C=0.1µF ±5%, R3=825kΩ ±1%, R2=226kΩ ±1%

: R1 = 430K, R4 = 34K for VDD = 5V ± 10% (See Figure 10)

: R1 = 620K, R4 = 63K4 for VDD = 3V ± 10% (See Figure 10)

Vdd

MT88E43

IN+

IN-

GS

VRef

CAP

TRIGin

TRIGRC

TRIGout

MODE

OSCin

OSCout

VSS

VDD

St/GT

ESt

StD

INT

CD

DR

DATA

DCLK

FSKen

PWDN

IC

C

R3

R2

Vdd

100K

1N914 20%

= To microcontroller

= From microcontroller

(FSK Interface Mode 0 selected)

Figure 11 - Application Circuit with Improved Common Mode Noise Immunity and Isolation in

Line Interface

Approvals

FCC Part 68, DOC CS-03, UL 1459, and CAN/CSA-

22.2 No. 225-M90 are all system (i.e. connectors,

power supply, cabinet, etc.) requirements. Since the

MT88E43 is a component and not a system, the

application circuit (Figure 11) has been designed to

meet the CO Trunk interface requirements of FCC,

DOC, UL, and CSA; thus enabling the complete

system to be approved by these standards bodies.

Products are designed in accordance with meeting

the above requirements; however, full conformance

to these standards is dependent upon the application

in which the MT88E43 is being used, and therefore,

approvals are the responsibility of the customer and

Zarlink will not have tested the product to meet the

above standards.

5-64

Share Link: