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參數(shù)資料
| 型號： | LA1867NM |
| 元件分類： | 接收器 |
| 英文描述： | AM/FM, AUDIO DEMODULATOR, PQFP44 |
| 封裝： | QIP-44 |
| 文件頁數(shù)： | 10/32頁 |
| 文件大?。?/td> | 1074K |
| 代理商： | LA1867NM |
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Usage Notes
1. AM/FM switching: Pin 31 (IF VCC)
This pin is shared with the IF VCC. When the FM IF is operated, the IC automatically switches to FM mode. (Note
that the switching reference voltage is 3.3 V.)
Figure 1
2. FM SD and SD adjustment
The FM SD and the IF counter buffer operate with the elements shown below.
The following conditions are required for FM SD operation.
V30 > VA:
The S-meter voltage must be higher than the regulator voltage.
V23 < 0.7 V (VBE): The Hall detector and band mute must not operate.
V29 = H:
A high level must be applied to pin 29 through a 100 kΩ resistance.
The following condition is required for IF buffer operation.
V19 = H:
A high level must be applied to pin 19 through a 51 kΩ resistance.
No. 4619-18/32
LA1867NM
Pin V31
Mode
8 V
FM
open
AM
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相關(guān)代理商/技術(shù)參數(shù) |
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| LA1867NM-MPB-E | 制造商:ON Semiconductor 功能描述: |
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| LA186B-9SEF-PF | 制造商:LIGITEK 制造商全稱:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
| LA186B-DBK-2-PF | 制造商:LIGITEK 制造商全稱:LIGITEK electronics co., ltd. 功能描述:LED ARRAY |
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