參數(shù)資料
型號: L64780
廠商: LSI Corporation
英文描述: DVB-T COFDM Demodulator(對地數(shù)字視頻廣播 正交編碼頻率分割多路處理解調(diào)器)
中文描述: 的DVB - T COFDM解調(diào)器(對地數(shù)字視頻廣播正交編碼頻率分割多路處理解調(diào)器)
文件頁數(shù): 76/126頁
文件大小: 953K
代理商: L64780
4-24
Register Descriptions
AGC_GAIN
AGC Loop Gain
These bits adjust the AGC Gain of the Loop Filter. The
value is set according to the sensitivity of the AGC loop.
The values are:
R/W [2:0]
The initial condition for these bits is 0b011,
.
4.4.5 Address Line 0x0B
ADC_FORMAT
Format of ADC Output
This bit determines if the ADC outputs its values in two’s
complement (1) or in binary offset format (0). The initial
condition for the ADC_FORMAT bit is 0, binary offset.
R/W 7
R2C_SI
COFDM Spectrum Inversion
During the up-conversion and the following down-
conversion, the COFDM spectrum can be inverted,
depending on the equipment used. This bit determines if
the COFDM signal should be spectrally inverted (1) or not
(0).
R/W 6
The initial condition for the R2C_SI bit is 0, normal
operation.
This spectrum inversion changes the sign of the sine
function (negative for 0, positive for 1).
AGC_GAIN[2:0]
Definition
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
K
s
K
s
K
s
K
s
K
s
K
s
K
s
K
s
3.9
9.8
2.4
6.1
1.5
3.8
9.5
2.4
3
×
10
×
10
×
10
×
10
×
10
×
10
×
10
×
10
4
4
5
5
6
7
7
K
s
6.1
5
×
10
7
6
5
0
0x0B
ADC_FORMAT
R2C_SI
AGC_TARGET_MSB
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