INTEGRATED CIRCUITS
DATA SHEET
PCD5032
ADPCM CODEC for digital cordless
telephones
Product specification
Supersedes data of August 1993
File under Integrated Circuits, IC17
1997 Apr 03
Philips Semiconductors
Product specification
ADPCM CODEC for digital cordless
telephones
CONTENTS
1
2
3
4
5
6
7
7.1
7.1.1
7.1.2
7.1.3
7.1.4
7.2
7.2.1
7.2.2
7.2.3
7.3
7.3.1
7.3.2
7.3.3
7.3.4
8
9
10
11
12
13
14
14.1
14.2
14.3
14.3.1
14.3.2
14.3.3
14.4
15
16
17
FEATURES
APPLICATIONS
GENERAL DESCRIPTION
ORDERING INFORMATION
BLOCK DIAGRAM
PINNING
FUNCTIONAL DESCRIPTION
Digital interfaces
ADPCM interface
PCM interface
I
2
C-bus interface
Fast mute
Analog parts and I
2
C-bus programming
Input and output
Sidetone
Tone generator and ringer
Modes of operation
Standby mode
Active mode
Test loops
Reset
HANDLING
LIMITING VALUES
DC AND AC CHARACTERISTICS
FILTER CHARACTERISTICS
APPLICATION INFORMATION
PACKAGE OUTLINES
SOLDERING
Introduction
Reflow soldering
Wave soldering
QFP
SO
Method (QFP and SO)
Repairing soldered joints
DEFINITIONS
LIFE SUPPORT APPLICATIONS
PURCHASE OF PHILIPS I
2
C COMPONENTS
PCD5032
1997 Apr 03
2
Philips Semiconductors
Product specification
ADPCM CODEC for digital cordless
telephones
1
FEATURES
2
APPLICATIONS
PCD5032
•
G.721 compliant ADPCM encoding and decoding
•
‘Bitstream’ analog-to-digital and digital-to-analog
conversion
•
On-chip receive and transmit filter
•
On-chip ringer and tone generator
•
Programmable gain of receive and transmit path
•
Serial ADPCM interface with independent timing for
maximum flexibility
•
Linear PCM data accessible for digital echo cancelling
•
Programmable via I
2
C-bus interface
•
Fast receiver mute input via pin
•
On-chip reference voltage
•
On-chip symmetrical supply for electret microphone
•
Few external components
•
Low power consumption in standby mode
•
Low supply voltage (single supply 2.7 V up to 5.5 V)
•
CMOS technology
•
Minimized EMC on digital outputs.
4
ORDERING INFORMATION
TYPE
NUMBER
PCD5032H
PCD5032T
•
Digital Enhanced Cordless Telephony (DECT)
•
CT2 cordless
•
Speech compression.
3
GENERAL DESCRIPTION
The PCD5032 is a CMOS device designed for use in
Digital Enhanced Cordless Telephone systems (DECT),
but also suitable for other cordless telephony applications
such as CT2. The PCD5032 performs analog-to-digital
and digital-to-analog conversion, ADPCM encoding and
decoding compliant to CCITT recommendation
“G.721
(blue book, 1988)”.
The PCD5032 contains on-chip
microphone and earpiece amplifiers. The device can be
used in both handset and base station designs.
PACKAGE
NAME
QFP44
SO28
DESCRIPTION
plastic quad flat package; 44 leads (lead length 2.35 mm);
body 14
×
14
×
2.2 mm
plastic small outline package; 28 leads; body width 7.5 mm
VERSION
SOT205-1
SOT136-1
1997 Apr 03
3
5
andbook, full pagewidth
1997 Apr 03
BLOCK DIAGRAM
PO RPI
VDD
TEST
RESET
3
26
20
22
19
V REF−
VGA
V REF+
30
1
6
4
Philips Semiconductors
TPE
RPE
9
CLK
34
CLOCK AND SYNC
PCD5032
VOLTAGE AND CURRENT
REFERENCE
RAS
25
LOW PASS
FILTER
23
VOLUME
CONTROL
volume
gain
level
SIDETONE
tone
DIGITAL
FILTER
NOISE
SHAPER
1–BIT
DAC
41
RE+
RE–
RAD
42
ADPCM
DECODER
ADPCM CODEC for digital cordless
telephones
DCLK
36
TAS
39
TAD
37
ADPCM
DECODER
4
TX
mute
DIGITAL
FILTER
1–BIT
DAC
tone select
TONE
GENERATOR
28
frequency/ volume
8
TPI
RINGER
VSS
loop
RX
mute
15
17
gain
33
31
TM+
TM–
RFM
44
SDA
12
I
2
C - BUS
INTERFACE
SCL
11
BZ+
BZ–
14
MEA786
A0
Product specification
PCD5032
Fig.1 Block diagram (pin numbers are for QFP44 package).
Philips Semiconductors
Product specification
ADPCM CODEC for digital cordless
telephones
6
PINNING
PIN
(1)(2)
SYMBOL
QFP44
RESET
n.c.
RPE
RPI
n.c.
PO
n.c.
TPI
TPE
n.c.
SCL
SDA
n.c.
A0
TM+
n.c.
TM−
n.c.
V
REF−
V
REF+
n.c.
VGA
RE−
n.c.
RE+
V
DD
n.c.
V
SS
n.c.
TEST
BZ−
n.c.
BZ+
CLK
n.c.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
SO28
4
−
5
6
−
7
−
8
9
−
10
11
−
12
13
−
14
−
15
16
−
17
18
−
19
20
−
21
−
22
23
−
24
25
−
I
−
O
I
−
O
−
I
O
−
I
I
−
I
I
−
I
−
O
O
−
O
O
−
O
P
−
P
−
I
O
−
O
I
−
reset input; active HIGH
not connected
TYPE
DESCRIPTION
PCD5032
receiver PCM output enable (active LOW); direction from ADPCM
interface to earpiece
receiver PCM input; direction from ADPCM interface to earpiece
not connected
PCM data output
not connected
transmitter PCM input; direction from microphone to ADPCM interface
transmitter PCM output enable (active LOW);
direction from microphone to ADPCM interface
not connected
serial clock input; I
2
C-bus
serial data input; I
2
C-bus
not connected
address select input; I
2
C-bus
transmitter audio positive input (microphone)
not connected
transmitter audio negative input (microphone)
not connected
negative reference voltage output; internally generated, intended for
electret microphone supply
positive reference voltage output; internally generated, intended for
electret microphone supply
not connected
analog signal ground output
receiver audio negative output (earpiece)
not connected
receiver audio positive output (earpiece)
positive supply voltage (2.7 V to 5.5 V)
not connected
negative supply voltage (0 V)
not connected
test mode input; to be connected to V
SS
in normal application
ringer negative output
not connected
ringer positive output
clock input
not connected
1997 Apr 03
5
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