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參數(shù)資料
| 型號(hào)： | LV25200M |
| 廠商： | SANYO SEMICONDUCTOR CO LTD |
| 元件分類： | 調(diào)諧器 |
| 英文描述： | 4-BAND, AUDIO TUNER, PQFP80 |
| 封裝： | 14 X 14 MM, QFP-80 |
| 文件頁(yè)數(shù)： | 7/16頁(yè) |
| 文件大?。?/td> | 517K |
| 代理商： | LV25200M |
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LV25200M
No.A0976-15/45
Continued from preceding page.
Unit (Resistance:
Ω, Capacitance: F)
Pin
Function
Discription
Internal Equivalent Circuit
39
MRC output
(for SNC Control)
Time constant for Multipath-Noise Detector is
determined with the following:
100
Ω and C2 during discharge
Iconst and C2 during charge
Iconst can be changed over with 2Bit
(MRC-Time-Constant)
41
MRC AC input pin
From AC-S-meter (pin 40), enter the AC
component.
Amp-Gain, and frequency characteristics are
determined with
C41, (R41+1k
Ω [internal resistance]) and 30kΩ
(internal resistance).
Amp-Gain can be controlled with 2Bit.
42
Mute Drive
1
The MUTE time constant is determined as
follows by CR:
Attack time
TA=10k
Ω (R1) × C42
Release time
TR=50k
Ω (R2) × C42
2
Noise convergence adjustment
3
MUTE OFF function
MUTE is turned OFF when pin 42 is short-
circuited with GND.
43
AFC
Null voltage
As compared with pin 46 2.7V
Continued on next page.
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