cxa2025as Sony Electronics, cxa2025as Datasheet - Page 5

• Manufacturer Part Number: cxa2025as
• Description: Y/c/rgb/sync/deflection For Color Tv
• Manufacturer: Sony Electronics

Pin
No.
15
16
17
18
19
21
23
20
22
24
25
26
YS
RIN
GIN
BIN
RSH
GSH
BSH
ROUT
GOUT
BOUT
IKIN
ABLIN
/VCOMP
Symbol
15
16
17
18
20
19
21
25
23
26
147
Equivalent circuit
1k
147
SV
40k
200
30k
CC
1100µ
1k
50µ
12k
200
100µ
50µ
SV
SV
SV
SV
SV
CC
CC
CC
CC
– 5 –
CC
Input the signal converted from the CRT beam
current (cathode current IK) to a voltage via a
capacitor. The V blanking part is clamped to 2.7V at
the V retrace timing.
The input for this pin is the reference pulse return,
and the loop operates so that the Rch is 1Vp-p and
the G and Bch are 0.83Vp-p. The G and Bch can be
varied by ±0.5V by the bus CUTOFF control. When
not using AKB, this pin should not be connected.
YS switch control input.
When YS is high, the RGB block signal is
selected; when YS is low, the Y/C block is
selected.
Analog R, G and B signal input.
Input a 0.7Vp-p (no sync, 100 IRE) signal via a
capacitor. The signal is clamped to 5.1V at the
burst timing of the signal input to the sync input
pin (Pin 44).
Sample-and-hold for R, G and B AKB.
Connect to GND via a capacitor. When not using
AKB (manual cut-off mode), R, G and B cut-off
voltage can be controlled by applying a control
voltage to each pin. The control voltage is 4.2 ±
2V.
R, G and B signal output.
2.4Vp-p is output during 100% white input.
ABL control signal input and VSAW high voltage
fluctuation compensation signal input.
High voltage compensation has linear control
characteristics for the pin voltage range of about
3V to 1V.
ABL does not operate when the pin voltage is 9
[V], and operates with increasing strength as the
voltage becomes lower than 9 [V].
VILMAX = 0.4V
VIHMIN = 1.0V
VIHMAX = 3.0V
Description
CXA2025AS