KA2500 데이터 시트보기 (PDF) - Samsung

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KA2500

I2C BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS

Samsung 

KA2500

I2C BUS CONTROLLED R/G/B VIDEO AMPLIFIER FOR MONITORS

NOTES;

1. Absolute Maximum Rating Indicates the limit beyond which damage to the device may occur.

2. Operating Ratings indicate conditions for which the device is functional but do not guarantee specific performance limits.

For guaranteed specifications and test conditions, See the Electrical Characteristics. The guaranteed specifications apply

only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under

the listed test conditions.

3. VCC supply pins 6, 9, and 23 must be externally wired together to prevent internal damage during VCC power on/off

cycles.

4. The supply current specified is the quiescent current for VCC1/VCC2 and VCC3 with RL = ∞ . The supply current

for VCC3 (pin 23) also depends on the output load.

5. Output voltage is dependent on load resistor. Test circuit uses RL = 390Ω

6. Measure gain difference between any two amplifiers Vin = 560mVpp.

7. When measuring video amplifier bandwidth or pulse rise and fall times, a double sided full ground plane printed circuit

board without socket is recommended. Video amplifier 10MHz isolation test also requires this printed circuit board.

The reason for a double sided full ground plane PCB is that large measurement variations occur in single sided PCBs.

8. Adjust input frequency from 10MHz (AV max reference level) to the-3dB frequency (f -3dB).

9. Measure output levels of the other two undriven amplifiers relative to the driven amplifier to determine channel separation.

Terminate the undriven amplifier inputs to simulate generator loading. Repeat test at fin = 10MHz for Iso_10MHz.

10. A minimum pulse width of 200 ns is guaranteed for a horizontal line of 15kHz. This limit is guaranteed by design. if a lower

line rate is used a longer clamp pulse may be required.

11. During the AC test the 4V DC level is the center voltage of the AC output signal. For example. if the output is 4Vpp the

signal will swing between 2V DC and 6V DC.

12. These parameters are not tested on each product which is controlled by an internal qualification procedure.

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