CC2400 Chipcon AS, CC2400 Datasheet - Page 63

• Manufacturer Part Number: CC2400
• Description: 2.4 GHz RF Transceiver
• Manufacturer: Chipcon AS

AGCTST0 (0x17) - AGC Test Register 0
15:13
12:11
10:7
6:3
2:0
AGCTST1 (0x18) - AGC Test Register 1
15
14
13:11
10
9:6
5:2
1:0
AGCTST2 (0x19) - AGC Test Register 1
15:14
13:12
11:9
8:6
5:3
2:0
Chipcon AS
Bit
Bit
Bit
Field Name
AGC_SETTLE_BLANK_DN[2:
0]
AGC_WIN_SIZE[1:0]
AGC_SETTLE_PEAK[3:0]
AGC_SETTLE_ADC[3:0]
AGC_ATTEMPTS[2:0]
Field Name
-
AGC_VAR_GAIN_SAT
AGC_SETTLE_BLANK_UP
[2:0]
PEAKDET_CUR_BOOST
AGC_MULT_SLOW[3:0]
AGC_SETTLE_FIXED[3:0]
AGC_SETTLE_VAR[1:0]
Field Name
-
AGC_BACKEND_BLANKING
[1:0]
AGC_ADJUST_M3DB[2:0]
AGC_ADJUST_M1DB[2:0]
AGC_ADJUST_P3DB[2:0]
AGC_ADJUST_P1DB[2:0]
SmartRF
®
CC2400 PRELIMINARY Datasheet (rev. 1.1), 2003-10-02
Reset
0
0
0
0
0
0
2
2
2
0
1
0
0
4
0
Reset
4
Reset
0
0
R/W
W0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
W0
R/W
R/W
R/W
R/W
R/W
R/W
SmartRF
Description
Reserved, write as 0.
AGC blanking makes sure that the modem locks its bit
synchronization and centre frequency estimator when the AGC
changes the gain.
0: Disabled
1-3: Fixed/variable enable
AGC parameter -3 dB.
AGC parameter -1 dB.
AGC parameter +3 dB.
AGC parameter +1 dB.
Description
AGC blanking enable/limit for negative gain changes.
0: Disabled
1-7: Duration of blanking signal in 8 MHz clock cycles.
AGC window size.
AGC peak detectors settling period.
AGC ADC settling period.
The maximum number of attempts to set the gain.
Description
Reserved, write as 0.
Chooses the gain reduction upon saturation of the variable
gain stage:
0: -1/-3 gain steps
1: -3/-5 gain steps
AGC blanking enable/limit for positive gain changes.
0: Disabled
1-7: Duration of blanking signal in 8 MHz clock cycles.
Doubles the bias current in the peak-detectors in-between the
VGA stages when set.
AGC timing multiplier, slow mode.
AGC settling period, fixed gain step.
AGC settling period, variable gain step.
®
CC2400
Page 63 of 73