I2C BUS CONTROLLED R/G/B VIDEO AMPLIFIER
KA2504
I2C BUS CONTROLLED R/G/B VIDEO AMPLIFIER
The KA2504 is very high frequency video amplifier system
with I2C BUS control used in Monitors.
It contains 3 matched R/G/B video Amplifiers and provides
flexible interfacing to the I2C BUS controlled adjustment sys-
tems.
24-DIP-300
FUNCTIONS
• R/G/B Video Amplifier
• I2C BUS Control
• Contrast Control
• Brightness Control
• Cut-Off Brightness Control
• R/G/B SUB Contrast/Cut Off Control
• Blank/Clamp Gate
• Auto beam current limitation (ABL) is possible
with external pin.
• The KA2504 includes white balance adjustment
that is effective on brightness (by Cut-Off control
for each channel).
ORDERING INFORMATION
Device Package Operating Temperature
KA2504 24-DIP-300
-20 °C ~ 75 °
FEATURES
• 3-Channel matched R/G/B Video Amplifiers
• I2C BUS control items
- Contrast control for the 3 channels
- Brightness control for the 3 channels
- SUB Contrast control for each channel
- Cut-Off control for each channel
- Cut-Off Brightness control for the 3 channels
- Switch Registers for SBLK and Cut-Off Offset Current
• Built-in ABL (Automatic Beam Limitation)
• Built-in Video output Brightness clamp
• 3-Channel R/G/B Video Amplifier 85 MHz @f-3 dB
• Contrast Control Range: -38 dB
• SUB Contrast Control Range: -11 dB
• Capable of 7 Vpp Output Swing
1