MC145442DW Просмотр технического описания (PDF) - Motorola => Freescale

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Компоненты Описание

производитель

MC145442DW

Single-Chip 300-Baud Modem

Motorola => Freescale 

0.1 µF

DTMF

INPUT

RDSI

20 kΩ

10 Ω

TIP

6

VDD

20

CDSI

TLA

RTLA 1

0.1 µF

17

15

DSI

TxA

RxA2

RTx

10 µF +600 Ω

MC145442/3

16 RxA1

9

Xin

3.58

8

MHz

Xout

CD

TxD

RxD

10 kΩ

RING

*

VDD

0.1 µF

0.1 µF

CFB

18 Exl

10

FB

0.1 µF 19 VAG

CDT

4

CCDT

0.1 µF

SQT

10 kΩ

LB

10 kΩ

GND

12

MODE

CDA

7

CCDA

0.1 µF

0.1 µF

+5V

0.1 µF

17

19

1

VDD

C1+

3

C1–

11 DI2

VCC

EIA–232–D

20

DB–25

C1+

CONNECTOR

18

C1–

MMBZ15VDLT1 X 3 8

15 DO1 MC145407

Tx2 10

2

13 DI1

Rx1 6

3

TxEN

8

Tx1

STBY

Rx2 7

7

Rx3 9

GND

VSS

2

4

* Line Protection Circuit

Figure 7. Typical MC145442/MC145443 Applications Circuit

MC145442•MC145443

10

MOTOROLA

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