SI2107-X-FM SILABS [Silicon Laboratories], SI2107-X-FM Datasheet - Page 66

• Manufacturer Part Number: SI2107-X-FM
• Description: SATELLITE RECEIVER FOR DVB-S/DSS WITH QUICKLOCK AND QUICKSCAN
• Manufacturer: SILABS [Silicon Laboratories]

Si2107/08/09/10
Register 77h. Digital AGC 1 Gain H
Register 78h. Digital AGC 2 Control
Register 79h. Digital AGC 2 Threshold
66
Name
Name
Name
Bit
7:0
Bit
6:3
2:1
Bit
7:0
Bit
7
0
Bit
Bit
Reserved
D7
D7
D7
DAGC2W[1:0]
DAGC2T[7:0]
DAGC1[15:8]
DAGC2TDIS
DAGC2[3:0]
Reserved
Name
Name
Name
D6
D6
D6
D5
D5
D5
DAGC2[3:0]
Digital AGC2 Threshold.
Default: B5h
Gain of digital AGC 1 (high-byte).
Default: 00h
Program as shown above. (device may change the value of this bit
during operation)
Digital AGC2 gain factor
Default: 0h
Digital AGC2 Measurement window
Acquisition
00 = 16 samples (default)
01 = 32 samples
10 = 64 samples
11 = 128 samples
Digital AGC2 Automatic Tracking Disable
1 = Disable automatic tracking. Freeze applied to gain.
0 = Enable automatic tracking. (default)
Preliminary Rev. 0.81
D4
D4
D4
DAGC1[15:8]
DAGC2T[7:0]
D3
D3
D3
Function
Function
Function
Tracking
1024 samples (default)
D2
2048 samples
4096 samples
8192 samples
DAGC2W[1:0]
D2
D2
D1
D1
D1
DAGC2TDIS
D0
D0
D0