AN5394FB
ICs for TV
■ Terminal Equivalent Circuits (continued)
Pin No.
Equivalent circuit
Description
40
Chroma γ cont.:
VCC 9 V (analog VCC1 /pin 30)
External pin for chroma signal γ correction
control
3.75 V
• Correcting the color level inside the IC in
order to adjust Y/C-Y ratio depending on
white gradation correction of Y signal. This
pin is for external control on this correction
value.
DC
4.5 V
±1.5 V
40
20 kΩ
20 kΩ
5.2 kΩ
• Controls the correction value of color level
for 2 to 0 times the open mode by means of
applied voltage.
4.5 V
• Recommended use range: 3.0 V to 6.0 V
41
ABL/ACL in:
VCC 9 V (analog VCC1 /pin 30)
3.5 V 3.5 V
Control voltage input pin for ABL/ACL
• Apply the signal inversely proportional to
the screen brightness of CRT.
• Operating range is 7 V to 2 V.
• Possible to control contrast and brightness in
inverse proportion to the applied voltage
(Controls the main signal and the OSD
signal)
DC voltage
41
5.2 kΩ
7 V
7 V
• Recommended use range: 0 V to 9 V
4 kΩ
5.2 kΩ
4 kΩ
42
43
GND:
GND pin
• Pin 42: Analog GND pin
CLP in:
VCC 9 V (pulse VCC /pin 44)
Clamp pulse input pin
• Input threshold voltage: 1.4 V
(to clamp at high)
40 µA
• Clamps the signal inputted from the pins
below.
Pins 9, 10, 11, 13, 14, 15, 37, 38, 39
• Recommended clamp pulse width:
NTSC: 2.5 µs
200 Ω
43
HD: 1.0 µs
40 µA
2.25 V
• Recommended use range: 0 V to 5 V
5 V
0 V
20
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