參數(shù)資料
型號： M52340SP
廠商： Mitsubishi Electric Corporation
英文描述： PAL/NTSC SYSTEM SHINGLE-CHIP COLOR TV SIGNAL PROCESSOR
中文描述： PAL / NTSC制式系統(tǒng)瓦一塊彩色電視信號處理器
文件頁數(shù)： 23/44頁
文件大?。?/td> 314K
代理商： M52340SP
PAL/NTSC SYSTEM SHINGLE-CHIP COLOR TV SIGNAL PROCESSOR
M52340SP
MITSUBISHI ICs (TV)
TC1 Tint control characteristics 1
TC2 Tint control characteristics 2
1. Input VS3N (see the following figure) to VI IN. Based on
the output voltage at pin 41, find the absolute angle as
shown in the above figure.
-180
°
0
°
90
°
A
B
GND
90
°
0
°
A
B
q = tan
-1
(B/A)
2. Tint data center (63) is defined as the reference angle
(TC). Find angles at tint data max. and tint data min. TC1
and TC2 are differences in angle between TCMAX and
TC and between TCMIN and TC and defined as follows.
TC1 = TCMAX-TC (deg)
TC2 = TC-TCMIN (deg)
SRA SECAM REF output AC voltage
SRD SECAM REF output DC voltage
Measure the amplitude (SRA) and DC voltage (SRD) of the
element of 4.43MHz of output at pin 42.
AUTO 1 to 6 System confirmation 1 to 6
Set to AUTO mode and confirm that bus for each output
signal is read correctly.
Ymax Maximum video output
1. Input SGA to VI IN
2. Measure the amplitude (
P-P
) except that at blanking part
of output at pins 21,22 and 23.
M
GY Video Standard video output
1. Input SGA to VI IN
2. Measure the amplitude (
P-P
) except that at blanking part
of output at pins 21,22 and 23.This amplitude is defined
as G1.
M = G1
3. GY is defined as follows:
GY = 20 log (G1V
P-P
/0.714V
P-P
) (dB)
BW Video frequency characteristics
1. Input SGB (5MHz, 0.4V
P-P
) to VI IN.
2. Measure the amplitude (
P-P
) except that at blanking part
of the output at pin 22 .The amplitude is defined as YB.
3. BW is defined as follows:
BW = 20 log (YB V
P-P
/GY V
P-P
) (dB)
2AGY Standard double-width amplifier output
1. Input SGA to VI IN.
2. Measure the amplitude (
P-P
) except that at blanking part
of output at pin 22.
CTR1 Chroma trap attenuation 1 (common to R/G/B output)
1. Input SS3N to VI IN. Measure the frequency level of
3.58MHz at trap data 0. The level is defined as N
0
.
2. Then, measure the level at trap data 1.
3. CTR1 is defined as follows.
Measured value (mV
P-P
)
N
0
(mV
P-P
)
CRT1 = 20 log
(dB)
TRF1 Trap fine adj. attenuation 1 (common to R/G/B output)
1. Input SS3N to VI IN
.
2. Measure the output amplitude of the element of 3.58MHz
when trap fine adj. switch is on. (TRFon)
3. TRF1 is defined as follows.
TRFon (mV
P-P
)
N
0
(mV
P-P
)
TRF1 = 20 log
(dB)
DTR1 D. trap attenuation 1 (common to R/G/B output)
1. Input SS3N to VI IN.
2. Measure the output amplitude of the element of 3.58MHz
when D. trap switch is on. (DTRon)
3. DTR1 is defined as follows.
DTR1 = 20 logDN
P-P
)
0
(mV
P-P
)
(dB)
CTR2 Chroma trap attenuation 2 (common to R/G/B output)
1. Input SS4P to VI IN and measure the frequency level of
4.43MHz at trap data 0. The level is defined as P
0
.
2. Then, measure the level at trap data 1.
3. CTR2 is defined as follows.
CTR2 = 20 logMeasP
P-P
)
0
(mV
P-P
)
(dB)
TRF2 Trap fine adj. attenuation 2
1. Input SS4P to VI IN.
2. Measure the output amplitude of the element of 4.43MHz
when trap fine adj. switch is on. (TRFon)
3. TRF2 is defined as follows.
TRFon (mV
P-P
)
P
0
(mV
P-P
)
TRF2 = 20 log
(dB)
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