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參數(shù)資料
| 型號： | M52727SP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | PAL/NTSC SYSTEM SINGLE-CHIP COLOR TV SIGNAL PROCESSOR |
| 中文描述： | PAL / NTSC制式系統(tǒng)單芯片彩色電視信號處理器 |
| 文件頁數(shù)： | 37/61頁 |
| 文件大?。?/td> | 430K |
| 代理商： | M52727SP |
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PAL/NTSC SYSTEM SINGLE-CHIP COLOR TV SIGNAL PROCESSOR
M52727SP
MITSUBISHI ICs (TV)
1. Test the output voltage of pin
VHAS1.
2. Input SG50(V=286mV
P-P
) into
3. Test the sink-chip and pedestal potencial of pin
make VHASS, VHASP.
4.
HAS =
(VHASP-VHASS)
SYNC
as no input and make
.
and
* 100 (%)
HAS Auto Slice Slice Level
(VHAS1-VHASS)
39
36
39
VHASP
VHAS1
VHASS
BGP2 BGP Timing 2
BGPW BGP Pulse Width
BGP1 BGP Timing 1
BGP1,BGP2
BGPW
PIN
SYNC
PIN
SCP
Test the output frequency of pin
as no input.
FH Horizontal Freerun Frequency
FPH1 Horizontal Pull-in Range 1
FPH2 Horizontal Pull-in Range 2
Change the SGc frequency and then calculate the difference
in test value from 15.625 kHz of the frequency range pull in
by output signal at pin
and input signal at pin
13
15.625kHz - Test value (Hz)
.
13
36
36
12
Supply current from pin
when the voltage at pin
, then measure the flow current
is 0.5 VDC or less.
ISS Sync. Separation Input Sensitivity Current
8
7
HPT2 Horizontal Pulse Timing 2 HPT2-HPT1
HPT3 Horizontal Pulse Timing 3 HPT3-HPT1
HPT1 Horizontal Pulse Timing 1
HPT1, HPT2, HPT3
PIN
SYNC
PIN
H OUT
39
13
HPT4 Horizontal Pulse Timing 4 HPT4-HPT1
HPT5 Horizontal Pulse Timing 5 HPT5-HPT1
VH Horizontal Pulse Amplitude
TH Horizontal Pulse Width
VH
TH
PIN
H OUT
SH Horizontal Stop Operation
When lowering the voltage at pin
which H.OUT output stops.
, measure the voltage at
13
9
1. Test the output amplitude of pin
Switch is changed and make AFCon when SW is ON and
AFCoff when SW is OFF.
2. AFCG = 20 log
AFCoff (V
P-P
)
when AFC Gain
AFCG AFC Gain Operation
AFCon (V
P-P
)
(dB)
16
FS H-V Free Operation
Test the voltage difference of pin
ON and OFF.
when H.FREE SW is
39
SYSH SYNC SEP Output "H"
SYSL SYNC SEP Output "L"
HLV Minimum Sync. Detection Level
1. Input SG50 (V=variable) into pin
2. Gradually reduce the SG50 amplitude from 286 mV
P-P
,
measure the amplitude where the horizontal synchro-
nization is put out of the range and specify the value to
be HLV1.
3. HLV=
286
.
36
HLV1
* 100 (%)
VVL Vertical Output Minimum Voltage
FV Vertical Free-run Frequency
Test the output frequency of pin
as no input.
M
GND
PIN
V. PULSE
SW Service Switch Operation 2
Test the output DC voltage of pin
DATA ON.
when the service switch
FPV Vertical Pull-in Range
Lower frequencies of SG.d at pin
and then measure the frequency when the output waveform
at pin
is pulled in.
18
from higher frequency
18
18
18
39
"L"
"H"
GND
PIN
OUTPUT
8
VW Vertical Output Pulse Width
M
GND
PIN
V. PULSE
18
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