CC2540T_15 Datasheet, PDF (25/37 Pages) Texas Instruments – SimpleLink CC2540T 2.4-GHz Bluetooth Low Energy Wireless MCU

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CC2540T
SWRS172 – JULY 2014
6 Applications, Implementation, and Layout
6.1 Application Information
Few external components are required for the operation of the CC2540T. A typical application circuit is
shown in Figure 6-1.
32-kHz Crystal⁽¹⁾
2-V to 3.6-V Power Supply
C401
C331
C321
1 DGND_USB
2 USB_P
3 USB_N
4 DVDD_USB
5 P1_5
6 P1_4
7 P1_3
8 P1_2
9 P1_1
10 DVDD2
CC2540T
DIE ATTACH PAD
RBIAS 30
AVDD4 29
AVDD1 28
AVDD2 27
RF_N 26
RF_P 25
AVDD3 24
XOSC_Q2 23
XOSC_Q1 22
AVDD5 21
R301
L251
C251
C252
C261
L261
C262
Antenna
(50 W)
L252
L253
C253
Power Supply Decoupling Capacitors are Not Shown
Digital I/O Not Connected
C221
XTAL1
C231
(1) 32-kHz crystal is mandatory when running the chip in low-power modes, except if the link layer is in the standby
state (Vol. 6 Part B Section 1.1 in [1]).
NOTE: Different antenna alternatives will be provided as reference designs.
Figure 6-1. CC2540T Application Circuit
S0383-03
Copyright © 2014, Texas Instruments Incorporated
Applications, Implementation, and Layout
25
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