CC2640R2L
ZHCSRK4A –APRIL 2020 –REVISED SEPTEMBER 2020
www.ti.com.cn
图 10-2 shows the various supply voltage configuration options. Not all power supply decoupling capacitors or
digital I/Os are shown. Exact pin positions will vary between the different package options. For a detailed
overview of power supply decoupling and wiring, see the TI reference designs and the CC26xx technical
reference manual ().
Internal DC-DC Regulator
Internal LDO Regulator
External Regulator
To All VDDR Pins
To All VDDR Pins
1.7 Vœ1.95 V to All VDDR- and VDDS Pins Except VDDS_DCDC
Ext.
Regulator
10 ꢀF
10 ꢀF
2.2 ꢀF
VDDS
VDDS
VDDS
VDDS
10 ꢀH
CC26xx
CC26xx
CC26xx
DCDC_SW Pin
Pin 3/4 (RXTX)
Pin 2 (RF N)
Pin 1 (RF P)
NC
Pin 3/4 (RXTX)
Pin 2 (RF N)
Pin 1 (RF P)
DCDC_SW Pin
Pin 3/4 (RXTX)
Pin 2 (RF N)
Pin 1 (RF P)
(GND Exposed Die
Attached Pad)
(GND Exposed Die
Attached Pad)
(GND Exposed Die
Attached Pad)
VDDS_DCDC Pin
VDDS_DCDC Pin
VDDS_DCDC Pin
VDDS_DCDC
Input Decoupling
10 ꢀFœ22 ꢀF
VDDS_DCDC
Input Decoupling
10 ꢀFœ22 ꢀF
24-MHz XTAL
(Load Caps
on Chip)
24-MHz XTAL
(Load Caps on Chip)
24-MHz XTAL
(Load Caps on Chip)
1.8 Vœ3.8 V
to All VDDS Pins
1.8 Vœ3.8 V
Supply Voltage
To All VDDS Pins
Copyright © 2016, Texas Instruments Incorporated
图10-2. Supply Voltage Configurations
Copyright © 2023 Texas Instruments Incorporated
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