PLL-SPLIT VIF/SIF IC

M52765FP

MITSUBISHI ICs (TV)

Notes

1. Video S/N

Input SG2 into VIF IN and measure the video out(Pin 22) noise in r.m.s

at TP22-B through a 5MHz (-3dB) L.P.F.

S/N=20 log

NOISE

2. Video Band width: BW

1. Measure the 1MHz component level of Video output TP22A with a spectrum

analyzer when SG3(f2=57.75MHz) is input into VIF IN. At that time,

measure the voltage at TP10 with SW10, set to position 2, and then fix

V10 at that voltage.

level reaches -3dB from the 1MHz component level as shown below.

TP22

-3dB

1 MHz

BW

( f2 - f1 )

3. Input Sens itivity: VIN MIN

Input SG4 (Vi=90dBµ) into VIF IN , and then gradually reduce Vi and measure

the input level when the 20KHz component of Video output TP22A reaches -

3dB from Vo det level.

4. Maximum Allowable Input: VIN MAX

1. Input SG5 (Vi=90dBµ) into VIF IN , and measure the level of the 20KHz

component of Video output.

2. Gradually increase the Vi of SG and measure the input level when the

output reaches -3dB.

(dB)