demodulator NIDEM. TDA8732 Datasheet

TDA8732 NIDEM. Datasheet pdf. Equivalent


Part TDA8732
Description NICAM-728 demodulator NIDEM
Feature INTEGRATED CIRCUITS DATA SHEET TDA8732 NICAM-728 demodulator (NIDEM) Product specification File und.
Manufacture NXP
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TDA8732
INTEGRATED CIRCUITS
DATA SHEET
TDA8732
NICAM-728 demodulator (NIDEM)
Product specification
File under Integrated Circuits, IC02
April 1993



TDA8732
Philips Semiconductors
NICAM-728 demodulator (NIDEM)
Product specification
TDA8732
FEATURES
5 V supplies for analog and digital circuitry
Low cost application
Improved noise behaviour
Limiting amplifier for QPSK input
Suitable with PAL B, G and I NICAM-728 systems.
APPLICATIONS
NICAM-728 systems.
QUICK REFERENCE DATA
Measured over full voltage and temperature ranges.
SYMBOL
PARAMETER
VCCA
analog supply voltage
VCCD
VCCA
VCCAVCCD
digital supply voltage
analog supply voltage
differential supply voltage
ICCA analog supply current
ICCD
digital supply current
V3 QPSK input level (peak-to-peak value)
RI
CI
fCAROSC
input resistance
input capacitance
carrier oscillator frequency
fXTAL
crystal frequency
PAL B, G
PAL I
fCLKOSC
clock oscillator frequency
fC5M C5M output frequency
GENERAL DESCRIPTION
The NIDEM is a dedicated device providing a DQPSK
(Differential Quadrature Phase Shift Keying) demodulator
for a NICAM-728 system.
The device interfaces with NICAM-728 decoders and
provides data synchronized to a 728 kHz clock (either
supplied externally or by the on-board clock).
The device consists of a costas loop quadrature
demodulator, a bit-rate clock recovery and differential
decoder with parallel-to-serial conversion.
The Voltage Controlled Oscillator (VCO) used in the
costas loop is achieved with a single-pin crystal oscillator.
A second single-pin crystal oscillator with a divider chain
provides signals at 5.824 MHz and at 728 kHz.
The NIDEM is suitable for PAL B and G (carrier oscillator
crystal at 11.7 MHz) and PAL I (carrier oscillator crystal at
13.104 MHz).
MIN.
4.5
4.5
4.5
0.5
30
1.75
11.5
TYP.
5
5
5
12.5
14.5
100
2.5
2
11.7
13.104
11.648
5.824
MAX.
5.5
5.5
5.5
0.5
300
3.25
13.5
UNIT
V
V
V
V
mA
mA
mV
k
pF
MHz
MHz
MHz
MHz
MHz
ORDERING INFORMATION
EXTENDED
TYPE
NUMBER
TDA8732
PINS
20
Note
1. SOT146-1; 1996 December 3.
April 1993
PIN POSITION
DIL
PACKAGE
MATERIAL
plastic
2
CODE
SOT146(1)







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