Pin
No.
Symbol Pin voltage
14 CLP
—
15 N.C.
—
16 BLK
—
18 B BRT
22 G BRT
—
26 R BRT
19 B S/H
23 G S/H
27 R S/H
20 B OUT
CXA1779P
Equivalent circuit
Vcc
14
GND
129
15k
Vcc
Description
• Clamp pulse input pin.
• Turns the input clamp and
the bright level adjustment
circuit on and off when high.
VH = 3V
VL = 1.5V
Leave this pin open.
Connect to GND.
16
129
30k
• Blanking pulse input pin.
• Threshold level at
approximately 2.25V.
VH = 3V
VL = 1.5V
GND
Vcc
18
22
129
26
GND
Vcc
200µA 200µA
50k
RGB bright level adjustment
pins.
The variable range of the pin
voltages is from 0 to 5V.
19
23
27
GND
1k
200µA
Pins to externally attach the
sample-and-hold capacitor
(0.01µF).
100µA
Vcc
24 G OUT
28 R OUT
–3–
20
24
28
GND
RGB output pins.