參數(shù)資料
型號(hào): LA1784
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(jī)
文件頁(yè)數(shù): 25/50頁(yè)
文件大?。?/td> 568K
代理商: LA1784
7. Notes on 3D AGC (Keyed AGC)
The antenna damping current from the pin due to the pin diode flows when the V2 pin reaches the V
CC
- V
BE
level.
The narrow AGC operates as follows.
When pin V39 > pin V24: The narrow AGC turns off.
When pin V39 < pin V24: The narrow AGC turns on.
No. 6039-25/50
LA1784M
+
55
W-AGC
DET
58
1
2
39
24
N-AGC
DET
+
+
VCC
VCC
ANT
DUMPING
90
μ
A
S-meter
VS-meter
A11763
Fig. 8
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