SI2107 SILABS [Silicon Laboratories], SI2107 Datasheet - Page 51
![no-image](/images/no-image-200.jpg)
SI2107
Manufacturer Part Number
SI2107
Description
SATELLITE RECEIVER FOR DVB-S/DSS
Manufacturer
SILABS [Silicon Laboratories]
Datasheet
1.SI2107.pdf
(80 pages)
- Current page: 51 of 80
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Register 17h. Fine Tune Frequency L
Register 18h. Fine Tune Frequency H
Register 23h. Analog AGC Control 1
Name
Name
Name
Bit
7:0
Bit
6:0
7
Bit
Bit
Bit
7:6
5:4
3:0
Bit
D7
D7
0
D7
0
Reserved
FTF[14:8]
FTF[7:0]
AGCW[1:0]
Reserved
Reserved
Name
Name
Name
D6
D6
D6
0
D5
Program to zero.
AGC Measurement Window.
Acquisition
00 = 1024 (default)
01 = 2048
10 = 4096
11 = 8192
Program to zero.
D5
Fine Tune Frequency (Low Byte).
where FTF is stored as a 2s complement value.
Calculation of the fine tune value is determined by the reference soft-
ware driver.
Default: 00h
Program to zero.
Fine Tune Frequency (High Byte).
See Register 17h.
Preliminary Rev. 0.7
D5
AGCW[1:0]
D4
D4
FTF[7:0]
D4
FTF[14:8]
131072 samples
262144 samples
524288 samples
Tracking
65536 samples (default)
D3
D3
f
fine
D3
0
Function
Function
Function
=
FTF
Si2107/08/09/10
×
D2
D2
D2
------- -
2
0
f
14
s
D1
D1
D1
0
D0
D0
D0
0
51
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