tda8374bh NXP Semiconductors, tda8374bh Datasheet - Page 50
tda8374bh
Manufacturer Part Number
tda8374bh
Description
Tda837x Family I?c-bus Controlled Economy Pal/ntsc And Ntsc Tv-processors
Manufacturer
NXP Semiconductors
Datasheet
1.TDA8374BH.pdf
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Philips Semiconductors
East-West output stage
In order to obtain correct tracking of the vertical and horizontal EHT correction, the E-W output stage should be
dimensioned as illustrated in Fig.19.
Resistor R
vertical sawtooth generator and the geometry processor. The preferred value of R
current of 100 A (V
The value of R
Example: With V
Control ranges of geometry control parameters
Typical case curves; R
Figures 20 to 23 are valid for all types. Figures 24 to 27 are valid for TDA8375 and TDA8377.
1997 Jul 01
handbook, full pagewidth
I
and NTSC TV-processors
2
C-bus controlled economy PAL/NTSC
ew
determines the gain of the E-W output stage. Resistor R
ew
ref
must be:
= 3.9 V; R
ref
c
= 3.9 V).
= 39 k , C
R
ew
c
= 39 k and V
=
39 k
(2%)
R
R c
SAW
c
TDA8375
TDA8377
52
V ref
= 100 nF.
---------------------- -
18 V
V
scan
Fig.19 East-West output stage.
51
scan
C saw
100 nF
(5%)
ref
45
= 120 V then R
E-W drive
50
OUTPUT
R ew
STAGE
E-W
ew
HORIZONTAL
DEFLECTION
MODULATOR
c
68 k .
V supply
determines the reference current for both the
STAGE
DIODE
MGK300
c
V scan
V EW
is 39 k which results in a reference
TDA837x family
Preliminary specification
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