M-8870-02P datasheet(5/8 Pages) ETC2

Part #	M-8870-02P

Description	DTMF Receiver

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Ordering Information

M-8870-01

18-pin plastic DIP

M-8870-01SM

18-pin plastic SOIC

M-8870-01SMTR

18-pin plastic SOIC, tape and reel

M-8870-02P

18-pin plastic DIP, power-down

option

M-8870-02S

18-pin plastic SOIC, power-down

option

M-8870-02T

18-pin plastic SOIC, power-down

option, tape and reel

Page 5

M-8870

Teltone Corporation, 22121-20th Avenue SE, Bothell, WA 98021-4408 U.S.A

Phone: 800-426-3926 or 425-487-1515 Fax: 425-487-2288

40-406-00011, Rev. E

E-mail: info@teltone.com Internet: www.teltone.com

Figure 6 Differential Input Configuration

Figure 7 Common Crystal Connection

FLOW

FHIGH

Key (ref.)

OE

Q4

Q3

Q2

Q1

697

1209

1

H

0001

697

1336

2

H

0010

697

1477

3

H

0011

770

1209

4

H

0100

770

1336

5

H

0101

770

1477

6

H

0110

852

1209

7

H

0111

852

1336

8

H

1000

852

1477

9

H

1001

941

1336

0

H

1010

941

1209

F

H

1011

941

1477

#

H

1100

697

1633

A

H

1101

770

1633

B

H

1110

852

1633

C

H

1111

941

1633

D

H

0000

ANY

L

ZZZZ

L = logic low, H = logic high, Z = high impedance

Table 5 Tone Decoding

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