CC1050-RTR1 datasheet(23/43 Pages) TI2

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CC1050

SWRS044

Page 23 of 40

Turn on crystal oscillator core

MAIN: CORE_PD = 0

Wait 2 ms*

Turn on bias generator

BIAS_PD = 0

Wait 200

µs

Power Down

*Time to wait depends on the crystal frequency

and the load capacitance

Turn on TX:

PA_POW = 00h

MAIN: F_REG = 1

FS_PD = 0

Wait 250

µs

TX mode

Turn off TX:

PA_POW = 00h

MAIN: TX_PD = 1, FS_PD = 1,

CORE_PD=1, BIAS_PD=1

Power Down

TX_PD = 0

PA_POW = ‘Output power’

Wait 20

µs

Waiting for the PLL to lock

Waiting for the PA to ramp up

Turn on crystal oscillator core

MAIN: CORE_PD = 0

Wait 2 ms*

Turn on bias generator

BIAS_PD = 0

Wait 200

µs

Power Down

*Time to wait depends on the crystal frequency

and the load capacitance

Turn on TX:

PA_POW = 00h

MAIN: F_REG = 1

FS_PD = 0

Wait 250

µs

TX mode

Turn off TX:

PA_POW = 00h

MAIN: TX_PD = 1, FS_PD = 1,

CORE_PD=1, BIAS_PD=1

Power Down

TX_PD = 0

PA_POW = ‘Output power’

Wait 20

µs

Waiting for the PLL to lock

Waiting for the PA to ramp up

Figure 14. Sequence for activating TX mode

Not Recommended for New Designs

CC1050-RTR1 数据表(PDF) 23 Page - Texas Instruments

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