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参数资料
型号： 935008900112
厂商： NXP SEMICONDUCTORS
元件分类： 无绳电话/电话
英文描述： TELEPHONE MULTIFUNCTION CKT, PDIP14
封装： 0.300 INCH, PLASTIC, SOT-27-1, MO-001AA, DIP-14
文件页数： 23/32页
文件大小： 253K
代理商： 935008900112
1996 Nov 21
3
Philips Semiconductors
Product specication
DTMF/modem/musical-tone generators
PCD3311C; PCD3312C
1
FEATURES
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
I2C-bus compatible
Selection of parallel or serial (I2C-bus) data input
(PCD3311C).
2
GENERAL DESCRIPTION
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
used, and a separate microcontroller is required to control
the devices.
Both the devices can interface to I2C-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.
3
QUICK REFERENCE DATA
4
ORDERING INFORMATION
SYMBOL
PARAMETER
MIN.
TYP.
MAX.
UNIT
VDD
operating supply voltage
2.5
6.0
V
IDD
operating supply current
0.9
mA
Istb
standby current
3
A
VHG(RMS)
DTMF HIGH group output voltage level (RMS value)
158
192
205
mV
VLG(RMS)
DTMF LOW group output voltage level (RMS value)
125
150
160
mV
Gv
pre-emphasis (voltage gain) of group
1.85
2.10
2.35
dB
THD
total harmonic distortion
25
dB
Tamb
operating ambient temperature
25
+70
°C
TYPE NUMBER
PACKAGE
NAME
DESCRIPTION
VERSION
PCD3311CP
DIP14
plastic dual in-line package; 14 leads (300 mil)
SOT27-1
PCD3311CT
SO16
plastic small outline package; 16 leads; body width 7.5 mm
SOT162-1
PCD3312CP
DIP8
plastic dual in-line package; 8 leads (300 mil)
SOT97-1
PCD3312CT
SO8
plastic small outline package; 8 leads; body width 7.5 mm
SOT176-1
相关PDF资料
PDF描述
935008910112 TELEPHONE MULTIFUNCTION CKT, PDSO16
935008910118 TELEPHONE MULTIFUNCTION CKT, PDSO16
0637720000 250 A, MODULAR TERMINAL BLOCK, 1 DECK
935009170112 HCT SERIES, 8-BIT RIGHT SERIAL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PDIP16
935009180118 HCT SERIES, 8-BIT RIGHT SERIAL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PDSO16
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