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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)： | 28/54頁(yè) |
| 文件大?。?/td> | 830K |
| 代理商： | LA17000M |
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LA17000M
No. 6522-34/54
Continued from preceding page.
Pin No.
Function
Equivalent circuit
Description
42
AM/FM S-meter
Constant current drive-type S-meter
output.
48
Dedicated FM S-meter
When AM is set, pin 48 outputs a
1 mA current, which turns HCC OFF.
43
MRC control voltage
time constant
44
SNC control input pin
45
HCC control input pin
A13341
A13343
A13345
Continued on next page.
Controls sub-output with an input of 0
to 1 V.
SNC voltage is determined by the RA
and RB component voltage. This
sets the separation blend curve.
RB = 5 k
on chip
RA is external
FM
S-meter
AM
S-meter
AM/FM
SW
The MRC detection time constant is
determined 1 k
and C2 when
discharging and by a constant
current of 7
A and C2 when
charging.
A13344
Controls high frequency output with
an input of 0 to 1 V.
Control through the MRC output is
also possible.
Use at least a 100 k
resistor when
using pin 48 FM S-meter for control.
to pin 44
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| LA1780M | 2-BAND, AUDIO TUNER, PQFP64 |
| LA1781M | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
| LA1784M | AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64 |
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