參數(shù)資料
型號: LA3450
廠商: Sanyo Electric Co.,Ltd.
英文描述: PLL FM MPX Stereo Demodulator with Adjustment-Free VCO and Measure Against Adjacent Channel Interference(可自由調(diào)整VCO和帶防止附近通道干涉措施的PLL FM MPX立體聲解調(diào)器)
中文描述: 鎖相環(huán)調(diào)頻立體聲解調(diào)器與盈豐調(diào)整,免費VCO和防止鄰頻道干擾(可自由調(diào)整的VCO和帶防止附近通道干涉措施的盈豐鎖相環(huán)調(diào)頻立體聲解調(diào)器測量)
文件頁數(shù): 10/15頁
文件大?。?/td> 488K
代理商: LA3450
LA3450
No.2393–10/15
8. V
O
– I
O
characteristic at pin 27
Fig. 4 shows V
O
– I
O
characteristic at pin 27 (I
O
: Capable of being drawn to the outside)
Maximum current : 3mA
9. Feedback resistance of post amplifier and total gain, de-emphasis constants
Table 2 shows the feedback resistance of post amplifier and the total gain, de-emphasis constants.
Total gain : At monaural mode, R4 · C12=R5 · C11=50
μ
s, 75
μ
s
Table 2. Feedback resistance of post amplifier and of total gain, de-emphasis constants
10. Low-pass filter
Figs. 5, 6 show a sample circuit configuration and characteristic of the low-pass filter.
Fig. 5 Sample Circuit of LC Filter
)
R
(
4
R
n
g
l
T
s
μ
0
5
)
1
C
(
2
1
C
s
μ
0
5
)
1
C
(
2
1
C
k
3
3
B
d
0
F
p
0
0
5
1
F
p
0
0
2
2
k
9
3
B
d
5
F
p
0
0
2
1
F
p
0
0
0
2
k
1
5
B
d
4
F
p
0
0
0
1
F
p
0
0
5
1
k
2
6
B
d
5
F
p
0
5
7
F
p
0
0
2
1
k
2
8
B
d
8
F
p
0
2
6
F
p
0
1
9
k
0
0
1
B
d
0
1
F
p
0
1
5
F
p
0
5
7
k
0
3
1
B
d
2
1
F
p
0
9
3
F
p
0
6
5
k
0
5
1
B
d
3
1
F
p
0
3
3
F
p
0
1
5
k
0
8
1
B
d
5
1
F
p
0
7
2
F
p
0
9
3
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