M52778SP View Datasheet(PDF) - MITSUBISHI ELECTRIC
Part Name
Description
Manufacturer
M52778SP Datasheet PDF : 37 Pages
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MITSUBISHI ICs (TV)
M52778SP
VIF, SIF, VIDEO, CHROMA, DEFLECTION FOR PAL/NTSC
ACC1
1. Input VS4P (eb=570mV:level+6dB) to VI IN.
2. Measure the output amplitude at pin 43.
3. ACC1 is defined as follows:
ACC1=20log
Measured value (VP-P)
Cn1 (VP-P)
(dB)
ACC2
1. Input VS4P (input level:20dB) to VI IN.
2. Measure the output amplitude at pin 41.
3. ACC2 is defined as follows:
ACC2=20log
Measured value (VP-P)
Cn1 (VP-P)
(dB)
4. R-YP is defined as follows:
θR-Y P=tan-1
V43×3.8
V41×1.9
+45 (deg)
CC Residual carrier leakage
Measure the element of 4.43MHz of the demodulated output in no-
input state.
DDH Offset of demodulated output by line
1. Input 4.2MHz CW (Vi=575mVP-P) to VI IN.
2. Measure the center DC voltage of output beat amplitude for two
lines at pins 41 and 43. The absolute value of the difference in
DC voltage is the difference of demodulated output on line.
OL Chroma overload
1. Input VS4P (ec=800mVP-P:chroma+3dB) to VI IN.
2. Measure the output amplitude at pin 41.
3. OL is defined as follows:
OL=20log
Measured value (VP-P)
Cn1 (VP-P)
(dB)
VikP Threshold color killer on (PAL)
1. Input VS4P (level:variable) to VI IN at input level 0dB.
2. Lower the input level whth monitoring the output amplitude at pin
41 and measure the input level when output amplitude isnot
found.
KillP Residual color leakage at killer on (PAL)
1. Input VS4P (level:40dB) to VI IN.
2. Measure the output amplitude at pin 41.
APC1 APC pull-in range 1
1. Input VS4P (f=eb=ec=variable) to VI IN.
2. Change the input signal frequency and measure the frequency
range from the point at which signal is output to pin 41 and to the
point that no signal is output to the pin. The reference value is
4.433619MHz.
R/B P Ratio of (R-Y/B-Y)
1. Input VS4P (eb=single chroma=ec+50kHz) to VI IN.
2. V41 is the output amplitude at pin 41.
3. V43 is the output amplitude at pin 43.
4. R /B P is defined as follows:
R/B P=20log
V43 (VP-P)
V41 (VP-P)
(dB)
θR-Y P Demodulation phase
1. Input VS4P (ed=single chroma=ec+50kNz) to VI IN.
2. V41 is the output amplitude at pin 41.
3. V43 is the output amplitude at pin 43.
M
M
1H
2H
GND
Cn3, Cn4 Output signal amplitude3, 4 (NTSC)
1. Input SS3N to VI IN.
2. Cn3 and Cn4 are output amplitude measured at pins 41 and 43
respectively.
VikN Threshold color killer on (NTSC)
1. Input VS3N (level:variable) to VI IN at input level 0dB.
2. Lower the input level with monitoring the output amplitude at pins
41 and measure the input level when output amplitude is not
found.
KillN Residual color leakage at killer on (NTSC)
1. Input VS3N (level:-40dB) to VI IN.
2. Measure the output amplitude at pin 41.
APC2 APC Pull-in range 2
1. Input VS3N (f=eb=ec=variable) to VI IN.
2. Change the input signal frequency and measure the frequency
range from the point at which no signal is output to 41 pin and to
the point at which signal is output to the pin. (Pull-in state) The
reference value is 3.579545MHz.
R/B N Ratio of (R-Y/B-Y)
1. Input VS3N (eb=signal chroma=ec+50kHz) to VI IN.
2. V41 is the output amplitude at pin 41.
3. V43 is the output amplitude at pin 43.
4. R/B N is defined as follows:
R/B N=20log V43 (VP-P)
V41 (VP-P)
(dB)
13
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