PCD6003 datasheet(63/96 Pages) PHILIPS

63 / 96 page

2001 Apr 17

Philips Semiconductors

Product speciﬁcation

Digital telephone answering machine chip

PCD6003

The analog and digital parts of both CODECs can be

independently activated by the SYMOD register; see

Section 9.2.2. Bit 4 of SYMOD is used to activate the

microphone supply voltage, if the bit is logic 0 the supply is

off.

The balanced microphone input has a minimum differential

input resistance of RMICDM, and the balanced line interface

input has a minimum differential input resistance of

RLIFINDM.

The output resistance of the balanced CODEC outputs is

RLIFOUT for CODEC1 and RSPKR for CODEC2 at a

differential output level of 1350 mV (RMS). For exact

measurement conditions and specified values see

Section 17.5.

handbook, full pagewidth

MGT442

DTCON.4

CDVC1

ARS1

ATD1

DDF1

DNS1

DT1

DR1

LIFMOUT

line interface

output

line interface

input

loudspeaker

output

microphone

input

receive path

LIFPOUT

LIFMIN1

LIFMIN2

LIFPIN

CDVC2

ARS2

AMP

ATD2

DDF2

DNS2

DT2

DR2

transmit path

MICP

MICM

SPKRP

SPKRM

CODEC1

CODEC2

DSP

Fig.29 Block diagram of CODECs.

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