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參數(shù)資料
| 型號(hào)： | MM1024AF |
| 廠(chǎng)商： | MITSUMI ELECTRIC CO LTD |
| 元件分類(lèi)： | 音頻／視頻放大 |
| 英文描述： | S Video Amplifier Monolithic IC MM1024 |
| 中文描述： | 2 CHANNEL, VIDEO AMPLIFIER, PDSO16 |
| 封裝： | SOP-16 |
| 文件頁(yè)數(shù)： | 4/5頁(yè) |
| 文件大?。?/td> | 146K |
| 代理商： | MM1024AF |
MITSUMI
S Video Amplifier MM1024
Notes :
*
1
1.Voltage gain G
V
1, G
V
2, G
V
3
Given SG-1 input as V1 and TP11 output signal as V2, G
V
1 is obtained as follows.
The same applies for G
V
2 and G
V
3.
V2
V1
GV1=20LOG [dB]
2.Frequency response f
C
1, f
C
2, f
C
3
For the same conditions as the G
V
1 measurement, given TP11 output for 0.1MHz as V3, and
for 5MHz as V1, Fc1 is obtained as follows. The same applies for fc2 and fc3.
V4
V3
fc1=20LOG [dB]
*
2
Crosstalk Y
IN
Given TP14 input signal as V5 and TP7 output signal as V6, CT1 is obtained as follows.
C
OUT
C
T
1
V6
V5
C
T
1=20LOG [dB]
*
3
Crosstalk P
B
, P
B
Give TP2 and TP4 input signals as V7, and TP11 output signal as V8, C
T
2 and C
T
3 are obtained
as follows.
Y
OUT
C
T
2, C
T
3
V8
V7
C
T
2=20LOG [dB]
1.When C is input to compare between Y
IN
portion from crosstalk.
Crosstalk PB C
OUT
CT4
Given TP4 input signal as V9 and TP7 output signal as V10, CT4 is obtained as follows.
C
OUT
and C
IN
Y
OUT
, subtract the 4dB amp
*
4
V10
V9
C
T
4=20LOG [dB]
*
5
Input threshold voltage Bordering input, character input V
TH
1, V
TH
2
For the same conditions as V
EDY
and V
CHY
measurement, raise TP13 and TP12 pulse levels
gradually. TP13 and TP12 pulse levels when bordering signal and character signal appear on
TP11 are, respectively, V
TH
1 and V
TH
2.
*
6
Input threshold voltage Chroma mute input V
TH
3
Gradually raise TP5 pulse level. TP5 pulse level when a sine wave is no longer output on TP7 is
V
TH
3.
*
7
Sync separation level V
SEPA
Gradually reduce SG-1 SYNC level from maximum to minimum. Measure the SYNC signal
level at TP14 when a sync separation signal is no longer output on TP15 to obtain V
SEPA
.
*
8
Schmidt trigger threshold level V
TH
4
H
, V
TH
4
L
Impress external DC voltage on TP1 and gradually raise from 0V. TP1 level when TP3 level
goes from high to low is V
TH
4
H
. Gradually lower from 5V. TP1 level when TP3 level goes from
low to high is V
TH
4
L
.
*
9
Vertical sync output voltage V
VH
, V
VL
TP3 low level for T
TH
4
H
measurement is V
VL
, and TP3 high level for V
TH
4
L
is Vvh.
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