CC1150-RTY1 datasheet(48/67 Pages) TI1

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CC1150

SWRS037B – JANUARY 2006 – REVISED MARCH 2015

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Table 5-35. 0x23: FSCAL3 – Frequency Synthesizer Calibration

BIT

FIELD

TYPE

RESET

DESCRIPTION

7:6

FSCAL3[7:6]

R/W

0x02

Frequency synthesizer calibration

configuration. The value to write in this field

before calibration is given by the SmartRF

Studio software.

5:4

CHP_CURR_CAL_EN[1:0]

R/W

0x02

Disable charge pump calibration stage when

3:0

FSCAL3[3:0]

R/W

0x09

Frequency synthesizer calibration result

pump output current, on an exponential scale:

I_OUT = I0·2FSCAL3[3:0]/4.

Fast frequency hopping without calibration for

each hop can be done by calibrating up front

for each frequency and saving the resulting

FSCAL3, FSCAL2 and FSCAL1 register

values. Between each frequency hop,

calibration can be replaced by writing the

FSCAL3, FSCAL2 and FSCAL1 register

values corresponding to the next RF

frequency.

Table 5-36. 0x24: FSCAL2 – Frequency Synthesizer Calibration

BIT

FIELD

TYPE

RESET

DESCRIPTION

7:6

Not Used.

VCO_CORE_H_EN

R/W

0x0

Choose high (1)/ low (0) VCO.

5:0

FSCAL2[5:0]

R/W

0x0A

Frequency synthesizer calibration result register. VCO

current calibration result and override value.

Fast frequency hopping without calibration for each

hop can be done by calibrating up front for each

frequency and saving the resulting FSCAL3, FSCAL2

and FSCAL1 register values. Between each frequency

hop, calibration can be replaced by writing the

FSCAL3, FSCAL2 and FSCAL1 register values

corresponding to the next RF frequency.

Table 5-37. 0x25: FSCAL1 – Frequency Synthesizer Calibration

BIT

FIELD

TYPE

RESET

DESCRIPTION

7:6

Not Used.

5:0

FSCAL1[5:0]

R/W

0x20

Frequency synthesizer calibration result register. Capacitor

array setting for VCO coarse tuning.

Fast frequency hopping without calibration for each hop

can be done by calibrating up front for each frequency and

saving the resulting FSCAL3, FSCAL2 and FSCAL1

can be replaced by writing the FSCAL3, FSCAL2 and

FSCAL1 register values corresponding to the next RF

frequency.

Table 5-38. 0x26: FSCAL0 – Frequency Synthesizer Calibration

BIT

FIELD

TYPE

RESET

DESCRIPTION

Reserved

Not Used.

6:0

FSCAL0[6:0]

R/W

0x0D

Frequency synthesizer calibration control. The

value to use in register field is given by the

SmartRF Studio [11] software.

Table 5-39. 0x29: FSTEST – Frequency Synthesizer Calibration Control

BIT

FIELD

TYPE

RESET

DESCRIPTION

7:0

FSTEST[7:0]

R/W

0x57

For test only. Do not write to this register.

Detailed Description

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