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參數(shù)資料
| 型號： | LC89975M |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | PAL-Format Delay Line |
| 中文描述： | PAL制式格式延遲線 |
| 文件頁數(shù)： | 5/7頁 |
| 文件大?。?/td> | 98K |
| 代理商： | LC89975M |
Test Conditions
1. Power-supply current with no input signal applied
2. Pin output voltage with no input signal applied (center bias voltage)
3. Measure the C-OUT output when 350-mVp-p sine wave signals are input to C-IN1 and C-IN2.
G
VC
= 20 log
[dB]
Measured frequencies
G
VC-1
G
VC-2
4.429662 MHz
4.425694 MHz
(PAL/GBI)
(4.43 NTSC)
4. Measure the comb depth from the C-OUT output when 350-mVp-p sine wave signals of frequency fa are input to C-
IN1 and C-IN2 and when signals of frequency fb are input.
C
D
= 20 log
[dB]
Measured frequencies
C
D-1
C
D-2
fa
fb
4.429662 MHz
4.425694 MHz
4.425756 MHz
4.417819 MHz
(PAL/GBI)
(4.43 NTSC)
5. Measure the C-OUT output when 200-mVp-p sine wave signals are input to C-IN1 and C-IN2 and when 500-mVp-p
sine wave signals are input and calculate the gain difference.
L
NC
= 20 log
(
500 [mVp-p]
/
)
[dB]
Measured frequencies
L
NC-1
L
NC-2
4.429662 MHz
4.425694 MHz
(PAL/GBI)
(4.43 NTSC)
6. Measure the 3·fsc (13.3 MHz) and fsc (4.43 MHz) components in the C-OUT output with no input signal applied.
7. Measure the noise in the C-OUT output with no input signal applied.
Set up the noise meter with a 200-kHz high-pass filter and a 5-MHz low-pass filter.
8. Let V1 be the C-OUT output when 350-mVp-p sine wave signals are input to C-IN1 and C-IN2 with SW3 in the a
position, and V2 be the C-OUT output with SW3 in the b position.
Z
OC
=
×
500 [
]
Measured frequencies
Z
OC-1
Z
OC-2
4.429662 MHz
4.425694 MHz
(PAL/GBI)
(4.43 NTSC)
V2 [mVp-p] – V1 [mVp-p]
V1 [mVp-p]
Output for a 200-mVp-p input [mVp-p]
200 [mVp-p]
Output for a 500-mVp-p input [mVp-p]
The C-OUT output for an fb input [mVp-p]
The C-OUT output for an fa input [mVp-p]
C-OUT output [mVp-p]
350 [mVp-p]
No. 5391-5/7
LC89975M
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