PCA1070T データシートの表示（PDF） - Philips Electronics

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PCA1070T

Multistandard programmable analog CMOS transmission IC

Philips Electronics 

Philips Semiconductors

Multistandard programmable analog

CMOS transmission IC

Product specification

PCA1070

PINNING

SYMBOL

TX

REG

DOC

LSI

LN

SCR

Vref

OREC

OMIC

VP

MIC−

MIC+

VSS

QR+

QR−

TST

DTMF

RMC

CLK

SCL

SDA

VMC

VDD

SLPE

PIN

DESCRIPTION

1 drive output

2 voltage regulator decoupling

3 dial output connection

4 line signal input

5 positive line terminal

6 sending current resistor

7 voltage reference decoupling

8 output receiving preamplifier; to be

left open-circuit in application

9 output microphone preamplifier;

to be left open-circuit in application

10 supply for electret microphones

11 inverting input microphone

preamplifier

12 non-inverting input microphone

preamplifier

13 negative line terminal

14 non-inverting output of receiving

amplifier

15 inverting output of receiving

amplifier

16 test pin; to be connected to VSS in

application

17 dual tone multi-frequency input

18 reset output for microcontroller

19 clock signal input

20 serial clock line input; I2C-bus

21 serial data line input/output; I2C-bus

22 input to sense supply voltage

microcontroller

23 positive supply decoupling

24 slope (DC resistance) adjustment

handbook, halfpage

TX 1

24 SLPE

REG 2

DOC 3

23 VDD

22 VMC

LSI 4

21 SDA

LN 5

20 SCL

SCR 6

Vref 7

OREC 8

19 CLK

PCA1070

18 RMC

17 DTMF

OMIC 9

16 TST

VP 10

MIC− 11

15 QR−

14 QR+

MIC+ 12

13 VSS

MGE338

Fig.2 Pin configuration.

1997 Jun 20

4

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