MITSUBISHI ICs (TV)
M52769FP
PLL-SPLIT VIF/SIF
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.
0.7 X V 0 det
NOISE
S/N=20 log
(dB)
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.
2. Reduce f2 and measure the value of (f2-f1) when the (f2-f1) component
level reaches -3dB from the 1MHz component level as shown below.
TP22
-3dB
( f2 - f1 )
1 MHz
BW
3. Input Sensitivity: 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.
MITSUBISHI
ELECTRIC
10
MITSUBISHI [ Mitsubishi Group ]
