參數(shù)資料
型號: LC749870LG
廠商: SANYO SEMICONDUCTOR CO LTD
元件分類: 消費家電
英文描述: SPECIALTY CONSUMER CIRCUIT, PBGA64
封裝: 5 X 5 MM, FLGA-64
文件頁數(shù): 32/44頁
文件大?。?/td> 538K
代理商: LC749870LG
LC749870LG
No.A1765-38/44
Low Pass Filter
The LPF is used to reduce noise in FM demodulated DB/DR signals. The characteristics of the LPF can be selected
using I2BSE_CLPFSEL.
Fig.13 LPF Characteristics
UV Gain and Offset Adjustment
The UV gain adjustment is performed to convert DB/DR to CB/CR, and the UV offset fine adjustment is also
performed. The UV gain can be adjusted by changing I2BSE_UGAIN and I2BSE_VGAIN, and the UV offset can be
adjusted by I2BSE_UOFFSET and I2BSE_VOFFSET.
Fig.14 UV Gain and Offset Adjustment
Gain
Offset
DB
DR
CB
CR
LPF characteristic
-60
-50
-40
-30
-20
-10
0
10
01
23
45
6
Frequency[MHz]
Ga
in
[d
B
]
LPF0
LPF1
LPF2
LPF3
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