參數資料
型號: LV25200M
元件分類: 調諧器
英文描述: 4-BAND, AUDIO TUNER, PQFP80
封裝: 14 X 14 MM, QFP-80
文件頁數: 5/16頁
文件大?。?/td> 517K
代理商: LV25200M
LV25200M
No.A0976-13/45
Continued from preceding page.
Unit (Resistance:
Ω, Capacitance: F)
Pin
Function
Discription
Internal Equivalent Circuit
25
26
MPX output (LEFT)
MPX output (RIGHT)
MPX output
Output impedance changed over with the
de-Emphasis changeover Bit (IN3-4 D20)
Low=3.3k
Ω
High=5k
Ω
(The figure in the right shows a case of 5k
Ω.)
(50/75
μs changeover with the external capacity of
0.015
μF)
27
VCC2 (5V)
VCC for PLL and Digital system VCC
28
SNC control input pin
With the pin 28 input voltage, the attenuation of
(L-R) Decode is controlled.
Decrease Separation.
The noise felt in the Stereo mode is reduced.
(Threshold can be controlled with 5Bit.)
29
HCC control input pin
With the pin 29 input voltage, attenuation of the
high pass component is controlled.
At weak input, high pass is cut to reduce the noise
feeling.
Same control for FM/AM HCC
(f characteristics changed over automatically
between AM and FM modes.)
(Threshold can be controlled with 5Bit.)
30
31
Phase-Comparator for
MPX
32
GND
33
NC-Gate
Trigger-OUT
Normal: High (VDD potential)
Gate: Low (0V)
Note)
Monitor output is not made unless the Bit setting of
Pilot-Cancel is set to 11 (PICAN=OFF).
Continued on next page.
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