M52779SP View Datasheet(PDF) - MITSUBISHI ELECTRIC
Part Name
Description
Manufacturer
M52779SP Datasheet PDF : 37 Pages
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MITSUBISHI ICs (TV)
M52779SP
VIF, SIF, VIDEO, CHROMA, DEFLECTION FOR PAL/NTSC
TRF1 Chroma 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.
TRF1=20log
TRFon (mVP-P)
N0 (mVP-P)
(dB)
Measure the most attenuation part in three condition of (2), and the
most attenuation part is defined as Y6.
The three condition of (2) is shown below.
condition 1
condition 2
condition 3
TRAP FINE ADT SW
ON
OFF
ON
FINE 2
OFF
ON
ON
DTR1 Chroma double 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 swich is on. (DTR on)
3. DTR1 is defined as follows.
DTR1=20log DTRon (mVP-P)
N0 (mVP-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 P0.
2. Then, measure the level at trap data 1.
3. CTR2 is defined as follows.
CTR2=20log
Measured value (mVP-P)
P0 (mVP-P)
(dB)
TRF2 Chroma 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. swich is on. (TRFon)
3. TRF2 is defined as follows.
TRF2=20log TRFon (mVP-P)
P0 (mVP-P)
(dB)
Measure the most attenuation part in three condition of (2) , and the
most attenuation part is defined as Y9.
The three condition of (2) is shown below.
condition 1
condition 2
condition 3
TRAP FINE ADT SW
ON
OFF
ON
FINE 2
OFF
ON
ON
DTR2 Chroma double trap attenuation 2
1. Input SS4P to VI IN.
2. Measure the output amplitude of the element of 4.43MHz when
D.trap swich is on. (DTR on)
3. DTR2 is defined as follows.
DTR2=20log DTRon (mVP-P)
P0 (mVP-P)
(dB)
Note: In parameters Y5,Y6,Y8 and Y9, limits are defined based on
the maximum attenuation by comparing each one.
YDL1 Y delay time1
1. Input SGA to VI IN.
2. Measure the delay time from signal input to output at pins 21, 22
and 23.
SGA
Output signal
M
Measure the delay time
at the center point of rise.
YDL2 to 4 Y delay time2 to 4
1. Input SGA to VI IN.
2. Measure the delay time from signal output at pins 21, 22 and 23
to Y11, YDL1.
GTnor Video tone 1
1. Input SGB (f=3MHz) to VI IN.
2. Measure output amplitude at pins 21, 22 and 23.
GTmax Video tone 2
1. Input SGB (f=3MHz) to VI IN.
2. Measure output amplitude at pins 21, 22 and 23.
3. GTmax is defined as follows:
GTmax=20log Measured value (VP-P)
GTnor (VP-P)
(dB)
GTmin Video tone 3
1. Input SGB (f=3MHz) to VI IN.
2. Measure output amplitude at pins 21, 22 and 23.
3. GTmin is defined as follows:
GTmin=20log Measured value (VP-P)
GTnor (VP-P)
(dB)
GT2M Video tone 4
1. Input SGB (f=2MHz) to VI IN.
2. Measure output amplitude at pins 21, 22 and 23.
3. GT2M is defined as follows:
GT2M=20log
Measured value (VP-P)
GTnor (VP-P)
(dB)
15
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