CC2400-RTR1 datasheet(65/83 Pages) TI

65 / 83 page

CC2400

SWRS042A

Page 65 of 83

PAMTST (0x11) - PA and Transmit Mixers Test Register

Bit

Field Name

Reset

R/W

Description

15:13

Reserved, write as 0.

VC_IN_TEST_EN

R/W

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).

ATESTMOD_PD

Power down of the analog test module.

10:8

ATESTMOD_MODE[2:0]

R/W

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.

6:5

TXMIX_CAP_ARRAY[1:0]

R/W

Selects varactor array settings in the transmit mixers.

4:3

TXMIX_CURRENT[1:0]

R/W

Transmit mixers current:

0: 1.72 mA

1: 1.88 mA

2: 2.05 mA

3 2.21 mA

2:0

PA_CURRENT[2:0]

R/W

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

CC2400-RTR1 Datasheet(PDF) 65 Page - Texas Instruments

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