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Silan

Semiconductors

DTMF GENERATORS

DESCRIPTION

The SC9200A/B tone generators are designed for

碌C

interfaces.

They can be instructed by a

碌C

to generate 16 dual tones and 8

single tones from the DTMF pin. The SC9200A provides a serial

mode whereas the SC9200B contains a selectable serial/parallel

mode interface for various applications such as security systems,

home

automation,

remote

control

through

telephone

lines

communication system, etc.

SC9200A/B

FEATURES

* Operating voltage: 2.0V~5.5V

* Serial mode for the SC9200A

* Serial/parallel mode for the SC9200B

* Low standby current

* Low total harmonic distortion

* 3.58MHz crystal or ceramic resonator

DIP-8

SELECTION TABLE

Function

Part No.

SC9200A

SC9200B

Operating Voltage

2V-5.5V

2V-5.5V

OSC Frequency

3.58MHz

3.58MHz

Interface

Serial

Serial/Parallel

Package

8 DIP/SOP

14 DIP/SOP

PIN CONFIGURATIONS

CE

X2

1

2

3

4

5

6

7

14 V

DD

13 DTMF

12 DATA

11 CLK

10 S/P

9

8

D3

D2

CE

X2

X1

V

SS

1

5

V

DD

X1

SC9200B

SC9200A

2

3

4

6

7

8

DTMF

V

SS

DATA

NC

CLK

D0

D1

HANGZHOU SILAN MICROELECTRONICS JOINT-STOCK CO.,LTD

Rev: 1.0

2001.02.02

1

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