Philips Semiconductors
Preliminary specification
Universal codec
CONTENTS
1
2
3
4
5
6
6.1
6.2
6.3
7
7.1
7.2
7.3
8
8.1
8.2
8.3
9
9.1
9.2
9.3
9.4
9.5
9.6
9.7
10
11
11.1
11.2
FEATURES
GENERAL DESCRIPTION
APPLICATIONS
ORDERING INFORMATION
BLOCK DIAGRAM
PINNING INFORMATION
Pin description
Pinning
Supply concept
FUNCTIONAL DESCRIPTION
General
Clocking
Reset and power-down strategy
MEMORY AND CONTROL REGISTERS
DSP memories
Data memory and control register map
Control registers organization
IOM
Features
Pin description
Functional description
Timing
IOM control table
IOM data buffers
Local loop
I
2
C-BUS INTERFACE
CODEC TEST LOOPS
Test modes definition
Codec test loop signal timing
12
12.1
12.2
12.3
13
13.1
13.2
13.3
14
15
16
17
18
18.1
18.2
18.3
18.4
19
20
21
PCD5096
APPLICATION INFORMATION
Small business systems
Large business systems
DECT and ISDN
APPLICATION EXAMPLES
PCD5096 with two active channels
Conference call between one PSTN line and
two IOM buffers
Conference call between two PSTN lines and
one IOM buffer
LIMITING VALUES
HANDLING
ELECTRICAL SPECIFICATIONS
PACKAGE OUTLINE
SOLDERING
Introduction
Reflow soldering
Wave soldering
Repairing soldered joints
DEFINITIONS
LIFE SUPPORT APPLICATIONS
PURCHASE OF PHILIPS I
2
C COMPONENTS
1997 Jan 22
2
Philips Semiconductors
Preliminary specification
Universal codec
1
FEATURES
2
GENERAL DESCRIPTION
PCD5096
•
Applications in digital terminal equipment featuring line
interface and/or voice functions
•
Digital signal processor performing echo cancellation,
codec functions and dial tone detection
•
Two independent receive and transmit channels
•
Independent programmable gain for all analog inputs
and outputs
•
Programmable filter correction functions
•
Flexible configuration of all functions
•
IOM-2 serial data interface (slave mode only)
•
Serial data interface to DTAM speech compression ICs
•
400 kHz I
2
C-bus slave interface (four I
2
C-bus
subaddresses)
•
Codec compatible with G.714 CCITT specification
•
PCM A-Law/u-Law (G.711 CCITT) and 16-bit linear data
•
Dual differential inputs and outputs performing the
following functions:
– Line interface connection
– Loudspeaker, speaker phone (hands-free)
– Earpiece, microphone (handset)
•
Peripheral interface: two I/O pins
•
Separate ringer function
•
Tone and ringer generator
•
Conference call
•
QFP44 package
•
Low voltage (2.7 to 3.6 V)
•
Low power consumption.
4
ORDERING INFORMATION
TYPE
NUMBER
PCD5096H
The universal codec combines two high resolution
bidirectional analog channels with a DSP in a single chip.
Besides the analog interfaces the PCD5096 includes two
digital interfaces: an I
2
C-bus interface allowing an external
microcontroller to program the chip, and a 4-wire serial
interface compatible with IOM-2 and with DTAM speech
compression ICs. This programmable serial interface
offers up to 14 channels and is capable of handling 8-bit
(A-law) or 16-bit (linear PCM) data packages, or any
combination of them. It opens the scope for a wide
application area, for example in combination with the
PCD5093H DECT baseband chip for digital cordless
business applications.
Several PCD5096s can be connected together for small
switching systems (PABX) offering a combination of
corded and cordless functionality. Besides the basic
functions like echo cancellation for two channels the
on-chip DSP provides all necessary functions such as
conference call and DTMF.
3
APPLICATIONS
The PCD5096 is designed for the telecommunications
market and is targeting small business and residential
systems offering a two-line interface or a one-line interface
combined with hands-free speaker phone. Specific
applications are detailed in Chapter 12.
PACKAGE
NAME
QFP44
DESCRIPTION
plastic quad flat package; 44 leads (lead length 1.3 mm);
body 10
×
10
×
1.75 mm
VERSION
SOT307-2
1997 Jan 22
3
Philips Semiconductors
Preliminary specification
Universal codec
6
6.1
PINNING INFORMATION
Pin description
QFP44 package
PIN
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
36
37
I/O
(1)
I/O
I/O
I
P
P
P
P
I
I/O
I
I
O
O
P
I
I
P
I
I
O
O
O
O
I
I
O
I
I
P
I
I
P
O
O
O
O
I
DESCRIPTION
programmable I/O pin 0 (Schmitt trigger input, pull-up output)
programmable I/O pin 1 (Schmitt trigger input, pull-up output)
clock input
3 V analog supply for PLL
analog ground supply for PLL
peripheral ground supply
3 to 5 V peripheral supply
I
2
C-bus clock signal input (Schmitt trigger)
I
2
C-bus data signal
I
2
C-bus subaddress
I
2
C-bus subaddress
negative analog output from Codec 1 to line interface
positive analog output from Codec 1 to line interface
3 V analog supply for Codec 1
negative analog input to Codec 1 from line interface
positive analog input to Codec 1 from line interface
analog ground supply for Codec 1
negative analog input to Codec 1 from microphone
positive analog input to Codec 1 from microphone
Codec 1 analog reference voltage
bandgap analog output voltage
Codec 2 analog reference voltage
PCD5096
Table 1
SYMBOL
IO0
IO1
CLK
V
DD_PLL
V
SS_PLL
V
SS_1
V
DD_1
SCL
SDA
A0
A1
LIFM_DA1
LIFP_DA1
V
DDA_1
LIFM_AD1
LIFP_AD1
V
SSA_1
MICM1
MICP1
VREF1
VBGP
VREF2
VMIC_HS
MICP_HS
MICM_HS
VMIC_HF
MICP_HF
MICM_HF
V
SSA_2
LIFP_AD2
LIFM_AD2
V
DDA_2
EARP_HS
EARM_HS
EARP_HF
EARM_HF
TEST
positive analog supply voltage from Codec 2 for handset microphone
positive analog input to Codec 2 from handset microphone
negative analog input to Codec 2 from handset microphone
positive analog supply voltage from Codec 2 for hands-free microphone
positive analog input to Codec 2 from hands-free microphone
negative analog input to Codec 2 from hands-free microphone
analog ground supply for Codec 2
positive analog input to Codec 2 from line interface
negative analog input to Codec 2 from line interface
3 V analog supply for Codec 2
positive analog output from Codec 2 to handset earpiece
negative analog output from Codec 2 to handset earpiece
positive output to hands-free earpiece
negative output to hands-free earpiece
test input; pull-down
1997 Jan 22
5
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