Datasheet
Internal DC-DC Regulator External RegulatorInternal LDO Regulator
(GND Exposed Die
Attached Pad)
Pin 3/4 (RXTX)
Pin 1 (RF P)
Pin 2 (RF N)
24-MHz XTAL
(Load Caps on Chip)
10 F
10 H
VDDS_DCDC
Input Decoupling
10 F±22 F
To All VDDR Pins
VDDS_DCDC Pin
DCDC_SW Pin
1.8 V±3.8 V
to All VDDS Pins
VDDR
VDDR
VDDS VDDS
CC26xx
(GND Exposed Die
Attached Pad)
Pin 3/4 (RXTX)
Pin 1 (RF P)
Pin 2 (RF N)
24-MHz XTAL
(Load Caps on Chip)
VDDS_DCDC
Input Decoupling
10 F±22 F
To All VDDR Pins
VDDS_DCDC Pin
NC
1.8 V±3.8 V
Supply Voltage
VDDR
VDDR
VDDS VDDS
CC26xx
10 F
To All VDDS Pins
(GND Exposed Die
Attached Pad)
Pin 3/4 (RXTX)
Pin 1 (RF P)
Pin 2 (RF N)
24-MHz XTAL
(Load Caps
on Chip)
VDDS_DCDC Pin
CC26xx
2.2 F
DCDC_SW Pin
1.7 V±1.95 V to All VDDR- and VDDS Pins Except VDDS_DCDC
Ext.
Regulator
Copyright © 2016, Texas Instruments Incorporated
42
CC2650
SWRS158B –FEBRUARY 2015–REVISED JULY 2016
www.ti.com
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Application, Implementation, and Layout Copyright © 2015–2016, Texas Instruments Incorporated
Figure 7-2 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 (Section 8.3).
Figure 7-2. Supply Voltage Configurations