參數(shù)資料
型號(hào): LA1787M
廠商: SANYO SEMICONDUCTOR CO LTD
元件分類: 接收器
英文描述: AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
封裝: 14 X 14 MM, QFP-64
文件頁(yè)數(shù): 52/54頁(yè)
文件大?。?/td> 606K
代理商: LA1787M
No. 6655-7/54
LA1787M
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
3k
15k
3k
3k
1M
0.01
F
0.47
F
200
A13559
13
12
11
VCC
3.9k
0.01
F
6800pF
LPF
Differential
amp
Gate
circuit
A13560
12
13
30k
VCC
PLL
N.C
0.01
F
A13561
After setting up the medium field
(about 50 dB) sensitivity with the
8
Noise AGC sensitivity
noise sensitivity setting pin (pin 8),
9
AGC adjustment
set the weak field (about 20 to
30 dB) sensitivity with the AGC
adjustment pin (pin 9)
11
Memory circuit connection
Recording circuit used during
12
noise canceller operation.
Continued from preceding page.
Continued on next page.
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