TDA8373 View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
TDA8373 Datasheet PDF : 72 Pages
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Philips Semiconductors
I2C-bus controlled economy PAL/NTSC
and NTSC TV-processors
Preliminary specification
TDA837x family
FEATURES
Available in all ICs:
• Vision IF amplifier with high sensitivity and good figures
for differential phase and gain
• PLL demodulator for the IF signal
• Alignment-free sound demodulator
• Flexible source selection with a CVBS input for the
internal signal and Y/C or CVBS input for the external
signal
• Audio switch
• The output signal of the CVBS (Y/C) switch is externally
available
• Integrated chrominance trap and band-pass filters
(auto-calibrated)
• Luminance delay line integrated
• A symmetrical peaking circuit in the luminance channel
• Black stretching of non-standard CVBS or luminance
signals
• RGB control circuit with black current stabilization and
white point adjustment
• Linear RGB inputs and fast blanking
• Horizontal synchronization with two control loops and
alignment-free horizontal oscillator
• Slow start and slow stop of the horizontal drive pulses
• Vertical count-down circuit
• Vertical driver optimized for DC-coupled vertical output
stages
• I2C-bus control of various functions
• Low dissipation
• Small amount of peripheral components compared with
competition ICs.
GENERAL DESCRIPTION
The various versions of the TDA837x series are I2C-bus
controlled single-chip TV processors which are intended to
be applied in PAL/NTSC (TDA8374 and TDA8375) and
NTSC (TDA8373 and TDA8377) television receivers.
All ICs are available in an SDIP56 package and some
versions are also available in a QFP64 package. The ICs
are pin compatible so that with one application board
NTSC and PAL/NTSC (or multistandard together with the
SECAM decoder TDA8395) receivers can be built.
Functionally this IC series is split in to 2 categories:
• Versions intended to be used in economy TV receivers
with all basic functions
• Versions with additional functions such as E-W
geometry control, horizontal and vertical zoom function
and YUV interface which are intended for TV receivers
with 110° picture tubes.
The various type numbers are given in Table 1.
The detailed differences between the various ICs are
given in Table 2.
Table 1 TV receiver versions
TV RECEIVERS
PAL only
PAL/NTSC (SECAM)
NTSC
SDIP56 PACKAGE
ECONOMY
TDA8374B
TDA8374 and TDA8374A
TDA8373
MID/HIGH END
−
TDA8375 and TDA8375A
TDA8377 and TDA8377A
QFP64 PACKAGE
ECONOMY
TDA8374BH
TDA8374AH
−
MID/HIGH END
−
TDA8375AH
−
1997 Jul 01
2
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