參數(shù)資料
型號(hào)： M61203CFP
廠商： Mitsubishi Electric Corporation
英文描述： NTSC TV SIGNAL PROCESSOR
中文描述： NTSC電視信號(hào)處理器
文件頁數(shù)： 34/51頁
文件大?。?/td> 786K
代理商： M61203CFP
NTSC TV SIGNAL PROCESSOR
M61203CFP
MITSUBISHI ICs (TV)
MITSUBISHI
ELECTRIC
R/BN =V
RY
(mV
p-p
)
V
BY
(mV
p-p
)
1. Input SG.E (eb=single chroma=ec+50KHz) to pin 34.
2. V
RY
is the output amplitude at pin 62 when I
2
C bus data of
'test mode' 16H D6=1, D7=1 .
3. V
BY
is the output amplitude at pin 62 when I
2
C bus data of
'test mode' 16H D6=0, D7=1 .
4. R/BN is defined as follows:
R/BN : Demodulation output ratio
1. Input SG.C to pin 34.
2. CnorR and CnorB are output amplitude measured at pin 62
when I
2
C data of 'test mode' 16H D6=1, D7=1 and D6=0,
D7=1 respectively.
CnorR : Standard chroma output (R-Y)
CnorB : Standard chroma output (B-Y)
ACC1: ACC characteristics 1
1. Input SG.E (eb=570mV:level+6dB) to pin 34.
2. Measure the output amplitude at pin 62.
3. ACC1 is defined as follows:
Measured value (mV
p-p
)
ACC1 = 20 log
(dB)
Cnor1 (mV
p-p
)
ACC2 : ACC characteristics 2
1. Input SG.E (input level:-20dB) to pin 34.
2. Measure the output amplitude at pin 62.
3. ACC2 is defined as follows:
ACC2 = 20 log
(dB)
Measured value (mV
p-p
)
Cnor1 (mV
p-p
)
OV : Chroma overload characteristics
1. Input SG.E (ec=800mV
p-p
:chroma+3dB) to pin 34.
2. Measure the output amplitude at pin 62.
3. OV is defined as follows:
Measured value (mV
p-p
)
Cnor1 (mV
p-p
)
OV = 20 log
(dB)
1. Input SG.E (level:-40dB) to pin 34.
2. Measure the output amplitude at pin 62.
KillP : Killer color residual
CHROMA BLOCK
1. Input SG.E (level:variable) to pin 34 at input level 0dB.
2. Lower the input level while monitoring the output amplitude
at pin 62, and measure the input level when output amplitude
is not found.
VikN1 : Killer operating input level 1
VikN2 : Killer operating input level 2
1. Input SG.E (feb=fec=3.579545MHz) to pin 34.
2. Increase the frequency until the output from pin 62
disappears. Decrease the frequency and note the point at
which the output reappears; f
U
.
3. Decrease the frequency until the output from pin 62
dissappears. Increase the frequency and note the point at
which the output reappears; f
L
.
4. APCU and APCL are defined as follows:
APCU = f
U
- 357954500 (Hz)
APCL = f
L
- 357954500 (Hz)
APCU : APC pull-in range (Upper)
APCL : APC pull-in range (Lower)
Note: Vector should be found with taking the gain ratio of a
demodulator into consideration.
1. Input SG.E (eb=single chroma=ec+50KHz) to pin 34.
2. V
RY
is the output amplitude at pin 62 when I
2
C bus data of
'test mode' 16H D6=1, D7=1 .
3. V
BY
is the output amplitude at pin 62 when I
2
C bus data of
'test mode' 16H D6=0, D7=1 .
4. R-YN is defined as follows:
R-YN = Tan-1
(V
BY
X 1.9)+45
R-YN : Demodulated phase angle
(deg)
V
RY
X 3.8
2. Tint data center (07H data 40H) is defined as the reference
angle "TC". Find angles at tint data maximum and tint data
minimum. TC1 and TC2 are differences in angle between
TCmax and TC and between TCmin and TC and defined as
follows.
TC1 : Tint control characteristics 1
TC2 : Tint control characteristics 2
1. Input SG.C (see the following figure) to pin 34. Based on
the output voltage at pin 62, find the absolute angle as shown
in the above figure.
-180deg
0deg
90deg
A
B
GND
90deg
0deg
A
B
q
q =Tan-1 (B/A)
TC1 = TCmax - TC (deg)
TC2 = TC - TCmin (deg)
34
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