Philips Semiconductors
Product specification
DTMF/modem/musical-tone generators
CONTENTS
1
2
3
4
5
6
6.1
6.2
6.3
6.4
6.5
6.6
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
7.10
7.11
8
8.1
8.2
8.3
8.4
8.5
8.5.1
8.5.2
9
10
11
12
13
14
14.1
14.2
14.2.1
14.2.2
14.3
14.3.1
14.3.2
14.3.3
FEATURES
GENERAL DESCRIPTION
QUICK REFERENCE DATA
ORDERING INFORMATION
BLOCK DIAGRAM
PINNING INFORMATION
Pinning PCD3311CP
Pin description PCD3311CP
Pinning PCD3311CT
Pin description PCD3311CT
Pinning PCD3312C
Pin description PCD3312C
FUNCTIONAL DESCRIPTION
General
Clock/oscillator connection
Mode selection (PCD3311C)
Data inputs (PCD3311C)
Strobe input (PCD3311C )
I
2
C-bus clock and data inputs
Address input
I
2
C-bus data configuration
Tone output
Power-on reset
Tables of Input and output
I
2
C-BUS INTERFACE
Bit transfer
Start and stop conditions
System configuration
Acknowledge
Timing specifications
Standard mode
Low-speed mode
HANDLING
LIMITING VALUES
CHARACTERISTICS
APPLICATION INFORMATION
PACKAGE OUTLINES
SOLDERING
Introduction
DIP
Soldering by dipping or by wave
Repairing soldered joints
SO
Reflow soldering
Wave soldering
Repairing soldered joints
2
15
16
17
PCD3311C; PCD3312C
DEFINITIONS
LIFE SUPPORT APPLICATIONS
PURCHASE OF PHILIPS I
2
C COMPONENTS
1996 Nov 21
Philips Semiconductors
Product specification
DTMF/modem/musical-tone generators
1
FEATURES
PCD3311C; PCD3312C
•
DTMF, modem and musical tone generation
•
Stabilized output voltage level
•
Low output distortion with on-chip filtering conforming to
CEPT recommendations
•
Latched inputs for data bus applications
•
I
2
C-bus compatible
•
Selection of parallel or serial (I
2
C-bus) data input
(PCD3311C).
2
GENERAL DESCRIPTION
used, and a separate microcontroller is required to control
the devices.
Both the devices can interface to I
2
C-bus compatible
microcontrollers for serial input. The PCD3311C can also
interface directly to all standard microcontrollers,
accepting a binary coded parallel input.
With their on-chip voltage reference the PCD3311C and
PCD3312C provide constant output amplitudes which are
independent of the operating supply voltage and ambient
temperature.
An on-chip filtering system assures a very low total
harmonic distortion in accordance with CEPT
recommendations.
In addition to the standard DTMF frequencies the devices
can also provide:
•
Twelve standard frequencies used in simplex modem
applications for data rates from 300 to 1200 bits per
second
•
Two octaves of musical scales in steps of semitones.
The PCD3311C and PCD3312C are single-chip silicon
gate CMOS integrated circuits. They are intended
principally for use in telephone sets to provide the
dual-tone multi-frequency (DTMF) combinations required
for tone dialling systems. The various audio output
frequencies are generated from an on-chip 3.58 MHz
quartz crystal-controlled oscillator. A separate crystal is
3
QUICK REFERENCE DATA
PARAMETER
operating supply voltage
operating supply current
standby current
DTMF HIGH group output voltage level (RMS value)
DTMF LOW group output voltage level (RMS value)
pre-emphasis (voltage gain) of group
total harmonic distortion
operating ambient temperature
−
−
158
125
1.85
−
−25
MIN.
2.5
−
−
−
192
150
2.10
−25
−
TYP.
MAX.
6.0
0.9
3
205
160
2.35
−
+70
V
mA
µA
mV
mV
dB
dB
°C
UNIT
SYMBOL
V
DD
I
DD
I
stb
V
HG(RMS)
V
LG(RMS)
G
v
THD
T
amb
4
ORDERING INFORMATION
PACKAGE
TYPE NUMBER
NAME
PCD3311CP
PCD3311CT
PCD3312CP
PCD3312CT
DIP14
SO16
DIP8
SO8
DESCRIPTION
plastic dual in-line package; 14 leads (300 mil)
plastic small outline package; 16 leads; body width 7.5 mm
plastic dual in-line package; 8 leads (300 mil)
plastic small outline package; 8 leads; body width 7.5 mm
VERSION
SOT27-1
SOT162-1
SOT97-1
SOT176-1
1996 Nov 21
3
Philips Semiconductors
Product specification
DTMF/modem/musical-tone generators
5
BLOCK DIAGRAM
PCD3311C; PCD3312C
handbook, full pagewidth
OSCI
1(3)
OSCO
2(4)
CLOCK
GENERATOR
VDD
14(2)
VSS
13(1)
OSCILLATOR
3
MODE
D5
D4
D3
D2
D1/SDA
D0/SCL
4
12
11
10
9(8)
8(7)
INPUT
CONTROL
LOGIC
HIGH
GROUP
DIVIDER
DAC
HIGH
SWITCHED
CAPACITOR
BANDGAP
VOLTAGE
REFERENCE
DIVIDER
SELECTION
(ROM)
(5)6
ADDER
DAC
LOW
SWITCHED RESISTOR
CAPACITOR CAPACITOR
TONE
STROBE
5
LOW
GROUP
DIVIDER
7(6)
PCD3311C
PCD3312C
MGG543
A0
The un-parenthesised numbers are for the PCD3311CP, those in parenthesis for the PCD3312C.
Fig.1 Block diagram.
6
6.1
PINNING INFORMATION
Pinning PCD3311CP
6.2
Pin description PCD3311CP
PIN
1
2
3
4
5
6
7
8
9
10
−
12
13
14
TYPE
I
O
I
I
I
O
I
I
I
I
P
P
DESCRIPTION
oscillator input
oscillator output
mode select input (selects
I
2
C or parallel data input)
parallel data input
strobe input (for loading
data in parallel mode)
frequency output (DTMF,
modem, musical tones)
slave address input (to be
connected to V
DD
or V
SS
)
parallel data input or
I
2
C-bus clock line
parallel data input or
I
2
C-bus data line
parallel data inputs
negative supply
positive supply
SYMBOL
OSCI
OSCO
MODE
handbook, halfpage
OSCI
OSCO
MODE
D5
STROBE
TONE
A0
1
2
3
4
5
6
7
MGG508
14 VDD
13 VSS
12 D4
D5
STROBE
TONE
A0
D0/SCL
D1/SDA
D2
−
D4
PCD3311CP
11 D3
10 D2
9
8
D1/SDA
D0/SCL
Fig.2 Pin configuration PCD3311CP.
V
SS
V
DD
1996 Nov 21
4
Philips Semiconductors
Product specification
DTMF/modem/musical-tone generators
6.3
Pinning PCD3311CT
6.4
PCD3311C; PCD3312C
Pin description PCD3311CT
PIN
1
2
3
4
5
6
7
8
9
10
11, 12
13
14
15
16
TYPE
I
O
I
I
−
I
O
I
I
I
I
−
I
P
P
DESCRIPTION
oscillator input
oscillator output
mode select input (selects
I
2
C or parallel data input)
parallel data input
not connected
strobe input (for loading
data in parallel mode)
frequency output (DTMF,
modem, musical tones)
slave address input (to be
connected to V
DD
or V
SS
)
parallel data input or
I
2
C-bus clock line
parallel data input or
I
2
C-bus data line
parallel data inputs
not connected
parallel data input
negative supply
positive supply
SYMBOL
OSCI
OSCO
MODE
handbook, halfpage
OSCI
OSCO
MODE
D5
n.c.
STROBE
TONE
A0
1
2
3
4
16 VDD
15 VSS
14 D4
13 n.c.
D5
n.c.
STROBE
TONE
A0
D0/SCL
D1/SDA
D2, D3
n.c.
D4
V
SS
V
DD
PCD3311CT
5
6
7
8
MGG509
12 D3
11 D2
10 D1/SDA
9
D0/SCL
Fig.3 Pin configuration PCD3311CT.
6.5
Pinning PCD3312C
6.6
Pin description PCD3312C
PIN
1
2
3
4
5
6
7
8
TYPE
P
P
I
O
O
I
I
I
DESCRIPTION
negative supply
positive supply
oscillator input
oscillator output
frequency output (DTMF,
modem, musical tones)
slave address input (to be
connected to V
DD
or V
SS
)
I
2
C-bus clock line
I
2
C-bus data line
SYMBOL
V
SS
V
DD
OSCI
handbook, halfpage
OSCO
VSS
VDD
OSCI
1
2
8
7
SDA
SCL
A0
TONE
TONE
A0
SCL
PCD3312C
3
4
MGG510
6
5
OSCO
SDA
Fig.4 Pin configuration PCD3312C.
1996 Nov 21
5
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