參數(shù)資料
型號: LA1784M
廠商: Sanyo Electric Co.,Ltd.
英文描述: Single-Chip Tuner IC for Car Radios
中文描述: 單芯片調(diào)諧器IC的汽車收音機
文件頁數(shù): 7/50頁
文件大?。?/td> 568K
代理商: LA1784M
No. 6039-7/50
LA1784M
Pin No.
Function
Description
Equivalent circuit
13
Pilot input
Pin 13 is the PLL circuit input pin.
14
N.C, MPX, MRC, GND
Ground for the N.C., MPX, and
MRC circuits.
+
8
9
3 k
15 k
3 k
3 k
1 M
0.01
μ
F
0.47
μ
F
200
A11715
A11715
13
12
11
VCC
3.9 k
0.01
μ
F
6800 pF
Differential
amp
Gate
circuit
LPF
A11716
12
13
30 k
VCC
PLL
N.C
0.01
μ
F
A11717
After setting up the medium field
(about 50 dBμ) sensitivity with the
noise sensitivity setting pin (pin 8),
set the weak field (about 20 to
30 dBμ) sensitivity with the AGC
adjustment pin (pin 9)
8
9
Noise AGC sensitivity
AGC adjustment
11
12
Memory circuit connection
Recording circuit used during
noise canceller operation.
Continued from preceding page.
Continued on next page.
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LA1787M Single-Chip Tuner IC for Car Radios
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