CC2400_07 Datasheet, PDF (65/83 Pages) Texas Instruments – 2.4 GHz Low-Power RF Transceiver

CC2400
PAMTST (0x11) - PA and Transmit Mixers Test Register
Bit
15:13
12
Field Name
-
VC_IN_TEST_EN
Reset R/W
0
W0
0
R/W
11
ATESTMOD_PD
1
W
10:8
ATESTMOD_MODE[2:0]
0
R/W
7
-
0
W0
6:5
TXMIX_CAP_ARRAY[1:0] 0
R/W
4:3
TXMIX_CURRENT[1:0]
0
R/W
2:0
PA_CURRENT[2:0]
3
R/W
Description
Reserved, write as 0.
When ATESTMOD_MODE=7 this controls whether the ATEST1 in
is used to output the VC node voltage (0) or to control the VC
node voltage (1).
Power down of the analog test module.
When ATESTMOD_PD=0, the function of the analog test module
is as follows:
0: Outputs “I” (ATEST2) and “Q” (ATEST1) from RxMIX.
1: Inputs “I” (ATEST2) and “Q” (ATEST1) to BPF.
2: Outputs “I” (ATEST2) and “Q” (ATEST1) from VGA.
3: Inputs “I” (ATEST2) and “Q” (ATEST1) to ADC.
4: Outputs “I” (ATEST2) and “Q” (ATEST1) from LPF.
5: Inputs “I” (ATEST2) and “Q” (ATEST1) to TxMIX.
6: Outputs “P” (ATEST2) and “N” (ATEST1) from Prescaler.
7: Connects TX IF to RX IF and simultaneously the ATEST1 pin to the
internal VC node (see VC_IN_TEST_EN).
Reserved, write as 0.
Selects varactor array settings in the transmit mixers.
Transmit mixers current:
0: 1.72 mA
1: 1.88 mA
2: 2.05 mA
3 2.21 mA
Programming of the PA current
0: -3 current adjustment
1: -2 current adjustment
2: -1 current adjustment
3: Nominal setting
4: +1 current adjustment
5: +2 current adjustment
6: +3 current adjustment
7: +4 current adjustment
SWRS042A
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