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參數資料
| 型號： | LA3460M |
| 元件分類： | 消費家電 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO24 |
| 封裝： | 0.375 INCH, MFP-24 |
| 文件頁數： | 5/6頁 |
| 文件大小： | 335K |
| 代理商： | LA3460M |
LA3460M
Νο.4842-5/12
Pin Functions
[NC]
Pin No.
Function
Internal equivalent circuit
Remarks
23
Noise canceller input
1μF
50kΩ
23
VCC
COMPOSIT
INPUT
4.2V
+
The input impedance is about 50k
Ω.
1
2
Noise canceller
AGC sensitivity
adjustments
After setting up medium field (about 50dB
μ)
reception with the noise sensitivity setting pin
(pin 1), set up weak field (20 to 30dB
μ) reception
with the AGC adjustment pin (pin 2).
3
Monostable multivibrator
time constant
Set this time constant so that the gate time is about
30
μs.
Increasing the gate time improves the noise
exclusion efficiency. However, care is required
since the apparent distortion due to multipath or
overmodulation will increase.
Continued on next page.
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