CC2650 Datasheet, PDF (12/64 Pages) Texas Instruments – Multistandard Wireless MCU

CC2650
SWRS158B – FEBRUARY 2015 – REVISED JULY 2016
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Table 4-3. Signal Descriptions – RSM Package (continued)
NAME
RX_TX
VDDR
VDDR_RF
VDDS
VDDS2
VDDS_DCDC
VSS
X32K_Q1
X32K_Q2
X24M_N
X24M_P
EGP
NO.
4
28
32
27
11
19
3, 7, 17, 20,
29
5
6
30
31
TYPE
RF I/O
Power
Power
Power
Power
Power
Power
Analog I/O
Analog I/O
Analog I/O
Analog I/O
Power
DESCRIPTION
Optional bias pin for the RF LNA
1.7-V to 1.95-V supply, typically connect to output of internal DC-DC. ⁽²⁾⁽³⁾
1.7-V to 1.95-V supply, typically connect to output of internal DC-DC⁽²⁾⁽⁴⁾
1.8-V to 3.8-V main chip supply⁽¹⁾
1.8-V to 3.8-V GPIO supply⁽¹⁾
1.8-V to 3.8-V DC-DC supply. Tie to ground for external regulator mode
(1.7-V to 1.95-V operation).
Ground
32-kHz crystal oscillator pin 1
32-kHz crystal oscillator pin 2
24-MHz crystal oscillator pin 1
24-MHz crystal oscillator pin 2
Ground – Exposed Ground Pad
(3) If internal DC-DC is not used, this pin is supplied internally from the main LDO.
(4) If internal DC-DC is not used, this pin must be connected to VDDR for supply from the main LDO.
12
Terminal Configuration and Functions
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