CC2540T Datasheet, PDF (25/37 Pages) Texas Instruments – Extended Industrial Temperature Bluetooth Smart Wireless MCU

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6 Applications, Implementation, and Layout
CC2540T
SWRS172A – JULY 2014 – REVISED NOVEMBER 2015
NOTE
Information in the following Applications section is not part of the TI component specification,
and TI does not warrant its accuracy or completeness. TI’s customers are responsible for
determining suitability of components for their purposes. Customers should validate and test
their design implementation to confirm system functionality.
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, see [1]).
NOTE: Different antenna alternatives will be provided as reference designs.
Figure 6-1. CC2540T Application Circuit
S0383-03
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Applications, Implementation, and Layout
25
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