PCA1070P datasheet(4/36 Pages) PHILIPS

4 / 36 page

1997 Jun 20

Philips Semiconductors

Product speciﬁcation

Multistandard programmable analog

CMOS transmission IC

PCA1070

PINNING

SYMBOL

DESCRIPTION

drive output

REG

voltage regulator decoupling

DOC

dial output connection

LSI

line signal input

positive line terminal

SCR

sending current resistor

Vref

voltage reference decoupling

OREC

output receiving preampliﬁer; to be

left open-circuit in application

OMIC

output microphone preampliﬁer;

to be left open-circuit in application

supply for electret microphones

MIC

−

inverting input microphone

preampliﬁer

MIC+

non-inverting input microphone

preampliﬁer

VSS

negative line terminal

QR+

non-inverting output of receiving

ampliﬁer

−

inverting output of receiving

ampliﬁer

TST

test pin; to be connected to VSS in

application

DTMF

dual tone multi-frequency input

RMC

reset output for microcontroller

CLK

clock signal input

SCL

serial clock line input; I2C-bus

SDA

serial data line input/output; I2C-bus

VMC

input to sense supply voltage

microcontroller

VDD

positive supply decoupling

SLPE

slope (DC resistance) adjustment

Fig.2 Pin configuration.

handbook, halfpage

REG

DOC

LSI

SCR

Vref

OREC

OMIC

MIC

−

MIC

SLPE

VDD

VMC

SDA

CLK

RMC

SCL

DTMF

TST

−

VSS

PCA1070

MGE338

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