CC1020-RTR1 datasheet(77/95 Pages) TI1

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CC1020

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SWRS046H – NOVEMBER 2006 – REVISED MARCH 2015

Table 5-45. CALIBRATE Register (1Bh) (continued)

DEFAULT

NAME

ACTIVE

DESCRIPTION

VALUE

CALIBRATE[2:0]

CAL_ITERATE[2:0]

—

Iteration start value for calibration DAC

0 (000): DAC start value 1, VC < 0.49 V after calibration

1 (001): DAC start value 2, VC < 0.66 V after calibration

2 (010): DAC start value 3, VC < 0.82 V after calibration

3 (011): DAC start value 4, VC < 0.99 V after calibration

4 (100): DAC start value 5, VC < 1.15 V after calibration

5 (101): DAC start value 6, VC < 1.32 V after calibration

6 (110): DAC start value 7, VC < 1.48 V after calibration

7 (111): DAC start value 8, VC < 1.65 V after calibration

Recommended setting: CAL_ITERATE=4.

Table 5-46. PA_POWER Register (1Ch)

DEFAULT

NAME

ACTIVE

DESCRIPTION

VALUE

PA_POWER[7:4]

PA_HIGH [3:0]

—

Controls output power in high-power array

0: High-power array is off

1: Minimum high-power array output power

…

15: Maximum high-power array output power

PA_POWER[3:0]

PA_LOW[3:0]

—

Controls output power in low-power array

0: Low-power array is off

1: Minimum low-power array output power

…

15: Maximum low-power array output power

It is more efficient in terms of current consumption to use either

the lower or upper 4-bits in the PA_POWER register to control

the power.

Table 5-47. MATCH Register (1Dh)

DEFAULT

NAME

ACTIVE

DESCRIPTION

VALUE

MATCH[7:4]

RX_MATCH[3:0]

—

Selects matching capacitor array value for RX. Each step is

approximately 0.4 pF.

MATCH[3:0]

TX_MATCH[3:0]

—

Selects matching capacitor array value for TX.

Each step is approximately 0.4 pF.

Table 5-48. PHASE_COMP Register (1Eh)

DEFAULT

NAME

ACTIVE

DESCRIPTION

VALUE

PHASE_COMP[7:0]

—

Signed compensation value for LO I/Q phase error. Used for image

rejection calibration.

–128: approx. –6.2° adjustment between I and Q phase

–1: approx. –0.02° adjustment between I and Q phase

0: approx. +0.02° adjustment between I and Q phase

127: approx. +6.2° adjustment between I and Q phase

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