參數(shù)資料
型號(hào): LA17000M
元件分類: 接收器
英文描述: AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP80
封裝: 14 X 14 MM, QFP-80
文件頁(yè)數(shù): 31/54頁(yè)
文件大小: 830K
代理商: LA17000M
LA17000M
No. 6522-37/54
Continued from preceding page.
Pin No.
Function
Equivalent circuit
Description
57
HCC capacitor
58
AM L.C. pin
59
Pilot detector
A13352
A13353
Continued on next page.
A13354
HCC frequency characteristics are
determined by the capacitance of the
external capacitor.
In AM mode, this changes the
frequency characteristics of the
unneeded audio band below 100 Hz
in order to produce clear audio.
Note:
The capacitor for the LC must be
connected to VCC (pin 56) (because
the detection circuit operates with
VCC as a reference).
The cutoff frequency fC is determined
by the following formula:
fC = 1/2
π × 50 k × C
Inserting a 1-M
resistor between
pin 59 and VCC forces MONO.
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