CC2620 Datasheet, PDF (35/52 Pages) Texas Instruments – SimpleLink ZigBee RF4CE Wireless MCU

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CC2620
SWRS178C – FEBRUARY 2015 – REVISED JULY 2016
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).
Internal DC-DC Regulator
10 F
To All VDDR Pins
10 H
VDDS
VDDS
DCDC_SW Pin
VDDS_DCDC Pin
VDDS_DCDC
Input Decoupling
10 F±22 F
CC26xx
(GND Exposed Die
Attached Pad)
Pin 3/4 (RXTX)
Pin 2 (RF N)
Pin 1 (RF P)
Internal LDO Regulator
To All VDDR Pins
10 F
VDDS
VDDS
NC
VDDS_DCDC Pin
VDDS_DCDC
Input Decoupling
10 F±22 F
CC26xx
(GND Exposed Die
Attached Pad)
Pin 3/4 (RXTX)
Pin 2 (RF N)
Pin 1 (RF P)
External Regulator
Ext.
Regulator
1.7 V±1.95 V to All VDDR- and VDDS Pins Except VDDS_DCDC
2.2 F
DCDC_SW Pin
VDDS_DCDC Pin
CC26xx
(GND Exposed Die
Attached Pad)
Pin 3/4 (RXTX)
Pin 2 (RF N)
Pin 1 (RF P)
1.8 V±3.8 V
to All VDDS Pins
24-MHz XTAL
(Load Caps on Chip)
1.8 V±3.8 V
Supply Voltage
24-MHz XTAL
(Load Caps on Chip)
To All VDDS Pins
Figure 7-2. Supply Voltage Configurations
24-MHz XTAL
(Load Caps
on Chip)
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Copyright © 2015–2016, Texas Instruments Incorporated
Application, Implementation, and Layout
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