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參數(shù)資料
| 型號(hào)： | LA1867NM |
| 元件分類： | 接收器 |
| 英文描述： | AM/FM, AUDIO DEMODULATOR, PQFP44 |
| 封裝： | QIP-44 |
| 文件頁(yè)數(shù)： | 31/32頁(yè) |
| 文件大小： | 1074K |
| 代理商： | LA1867NM |
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Pin Functions
FM-IF Block
No. 4619-8/32
LA1867NM
Continued on next page.
Pin
Function
Equivalent internal circuit
Note
18
S-meter output for MRC
and SNC
32
S-meter output for muting
drive and HCC
30
S-meter output for SD
28
S-meter output shift control
pin
20
Noise canceller input
21
FM detector output
30
FM SD Adj
Constant current drive type
The slope can be changed by changing the
value of the S-meter output resistance.
The field strength can be shifted in the
positive or negative direction with an
external resistor on pin 28 without changing
the S-meter slope.
Noise canceller input
The input impedance is 50 kΩ.
FM detector output
Low impedance in FM mode
Pin 30
The comparison voltage is determined by
the external resistor.
Pin 30 is the S-meter output, and SD turns
on when it exceeds the internal supply
voltage.
Unit (resistance:Ω, capacitance:F)
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| LA1867NM-MPB-E | 制造商:ON Semiconductor 功能描述: |
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