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參數(shù)資料
| 型號(hào)： | LA7976 |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 調(diào)諧器 |
| 英文描述： | 1-BAND, AUDIO TUNER, PSIP5 |
| 封裝： | SIP-5 |
| 文件頁數(shù)： | 3/4頁 |
| 文件大小： | 71K |
| 代理商： | LA7976 |
LA7976
No.5559-3/4
Reference Example 1
+
SAW
picture
SAW
sound
VIF
FM DET
Video
DET
1st SIF
DET
LA7976
Video output
VCC
B.P.F 6MHz
VIF/SIF IC
Sound
output
P
S
Reference Example 2
+
SAW
VIF
FM DET
Video
DET
LA7976
Video output
VCC
B.P.F 6MHz
VIF/SIF IC
Sound
output
390
15pF
47pF
10
H
P
S
Pin Description
Pin No.
Pin name
Description
Equivalent circuit
1
INPUT
SIF input pin.
The filter in Fig.1 can be connected to the input section to
improve the buzz characteristic.
If C1 is too small, the buzz characteristic improves for
normal input, but the filter cuts into the sound carrier and
the buzz characteristic deteriorates for the P/S
(picture/sound carrier) ratio.
1
C2
C1
R
L
From video
output section
Fig.1
1
200
5k
5k
2
VCC
Power supply pin.
3
GND
Ground pin.
Continued on next page.
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