CC1050SLASHTANDR datasheet(20/40 Pages) TI

20 / 40 page

CC1050

SWRS044

Page 20 of 40

Write CAL:

CAL_START=0

End of calibration

Wait for maximum 26 ms, or

Read CAL and wait until

CAL_COMPLETE=1

Start dual calibration

Either frequency register A or B is selected

Write MAIN:

F_REG = 0

TX_PD = 0; FS_PD = 0

CORE_PD = 0; BIAS_PD = 0; RESET_N=1

Write FREQ_A, FREQ_B

If DR>=38kBd then {write TEST4: L2KIO=3Fh,

PRESCALER = 04h}

Write CAL: CAL_DUAL = 1

Frequency registers A and B are both used

Write CAL:

CAL_START=1

The result of the calibration is stored for

Both frequency FREQ_A and FREQ_B, and

can be read from the status registers TEST0

and TEST2

Write CURRENT:

VCO_CURRENT = Current

Write PA_POW = 00h

‘Current’ is the VCO current to be

used for both frequencies

Calibration time depend on the reference

frequency, see text.

Write CAL:

CAL_START=0

End of calibration

Wait for maximum 26 ms, or

Read CAL and wait until

CAL_COMPLETE=1

Start dual calibration

Either frequency register A or B is selected

Write MAIN:

F_REG = 0

TX_PD = 0; FS_PD = 0

CORE_PD = 0; BIAS_PD = 0; RESET_N=1

Write FREQ_A, FREQ_B

If DR>=38kBd then {write TEST4: L2KIO=3Fh,

PRESCALER = 04h}

Write CAL: CAL_DUAL = 1

Frequency registers A and B are both used

Write CAL:

CAL_START=1

The result of the calibration is stored for

Both frequency FREQ_A and FREQ_B, and

can be read from the status registers TEST0

and TEST2

Write CURRENT:

VCO_CURRENT = Current

Write PA_POW = 00h

‘Current’ is the VCO current to be

used for both frequencies

Calibration time depend on the reference

frequency, see text.

Figure 12. Dual calibration algorithm

CC1050/TANDR 数据表(PDF) 20 Page - Texas Instruments

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