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參數資料
型號: LA1776M
廠商: SANYO SEMICONDUCTOR CO LTD
元件分類: 調諧器
英文描述: 2-BAND, AUDIO TUNER, PQFP64
封裝: 14 X 14 MM, QFP-64
文件頁數: 41/41頁
文件大?。?/td> 547K
代理商: LA1776M
No.8085-9/41
LA1776M
Continued on next page.
Continued from preceding page.
3
5
FM OSC
AM/FM
switching circuit
VCC
4V
GND
8V
+
+
5
AM/FM SW
The pin 5 input voltage state (high or low) switches
between AM and FM modes.
V5 = high (8 V): FM
V5 = low (0 V): AM
This level is also used as the FM oscillator circuit
VCC.
6
7
3 k
15 k
1 k
3 k
3 k
2 M
0.01
F
0.022
F
200
+
6
7
Noise AGC sensitivity
AGC adjustment
After setting up the medium field (about 50 dB)
sensitivity with the noise sensitivity setting pin (pin
6), set the weak field (about 20 to 30 dB) sensitivity
with the AGC adjustment pin (pin 7)
8
FM OSC
AM OSC
8
AM/FM oscillator buffer
output
This pin is shared by the AM and FM systems.
9
VCC (16 pin)
A L C
9
AM OSC
AM system first oscillator
This oscillator can provide frequencies for use up to
the shortwave band.
This pin includes an ALC circuit.
Pin No.
Pin
Description
Equivalent circuit
相關PDF資料
PDF描述
LA1780M 2-BAND, AUDIO TUNER, PQFP64
LA1781M AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
LA1784M AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
LA1787NM AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
LA1787NM AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
相關代理商/技術參數
參數描述
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