M52775 Mitsubishi, M52775 Datasheet - Page 12

• Manufacturer Part Number: M52775
• Description: VIF/ SIF/ VIDEO/ CHROMA/ DEFLECTION FOR NTSC
• Manufacturer: Mitsubishi

A
1. Input VS (eb=570mV:level+6dB) from pin 36 IN.
2. Measure the output amplitude at pin 20.
3. A
A
1. Input VS (input level:-20dB) from pin 36 IN.
2. Measure the output amplitude at pin 20.
3. A
OV Chroma overload
1. Input VS (ec=800mV
2. Measure the output amplitude at pin 20.
3. OL is defined as follows:
VikP Threshold color killer on
1. Input VS (level:variable) from pin 36 IN at input level 0dB.
2. Lower the input level whth monitoring the output amplitude at pin
KillP Residual color leakage at killer on
1. Input VS (level:-45dB) from pin 36 IN.
2. Measure the output amplitude at pin 20.
APC1 APC pull-in range 1
1. Input VS (f=eb=ec=variable) from pin 36 IN.
2. Change the input signal frequency and measure the frequency
R/B P Ratio of (R-Y/B-Y)
1. Input VS (eb=single chroma=ec+100kHz) from pin 36 IN.
2. V20 is the output amplitude at pin 20.
3. V18 is the output amplitude at pin 18.
4. R/B P is defined as follows:
CC1
CC2
20 and measure the input level when output amplitude isnot
found.
range from the point at which signal is output to pin 20 and to the
point that no signal is output to the pin. The reference value is
3.579545MHz.
CC1
CC2
R/B P=20log
OL=20log
A
A
is defined as follows:
is defined as follows:
CC1
CC2
=20log
=20log
Measured value (V
Measured value (V
V18 (V
V20 (V
Measured value (V
P-P
Cn1 (V
:chroma+3dB) from pin 36 IN.
Cn1 (V
Cn1 (V
P-P
P-P
)
)
P-P
P-P
P-P
(dB)
)
)
)
P-P
P-P
P-P
)
)
)
(dB)
(dB)
(dB)
VIF, SIF, VIDEO, CHROMA, DEFLECTION FOR NTSC
1. Input VS (ed=single chroma=ec+100kHz) from pin 36 IN.
2. V20 is the output amplitude at pin 20.
3. V18 is the output amplitude at pin 18.
4. R-YP is defined as follows:
CC Residual carrier leakage
Measure the element of 3.58MHz of the demodulated output in no-
input state.
TC1 Tint control 1, TC2 Tint control 2
1. Input VS (see the following figure) from pin 36 IN. Based on the
R-Y P Demodulation phase
output voltage at pin 20, find the absolute angle as shown in the
following figure.
R-Y P=tan
-180
A
-1
(V20 1.9)+45
V18 3.8
0
B
90
MITSUBISHI ICs (TV)
(deg)
A
M52775FP
90
=tan
-1
(B/A)
B
0
GND
12