CC2640R2F-Q1 Datasheet, PDF (29/40 Pages) Texas Instruments – SimpleLink Bluetooth low energy Wireless MCU for Automotive

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7 Application, Implementation, and Layout
CC2640R2F-Q1
SWRS201 – JANUARY 2017
NOTE
Information in the following applications sections 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.
7.1 Application Information
Very few external components are required for the operation of the CC2640R2F-Q1 device. This section
provides general information about the differential configuration when using the CC2640R2F-Q1 device in
an application, and an example application circuit with schematics and layout is shown in Figure 7-1,
Figure 7-2, Figure 7-3, and Figure 7-4. This is only a small selection of the many application circuit
examples available as complete reference designs from the product folder on www.ti.com.
Figure 7-1 shows the differential RF front-end configuration option with internal biasing. See the
CC2640Q1EM-7ID reference design for this option.
Optional
inductor is
needed
only for
DC-DC ^{10 µH}
operation
DCDC_SW
VDDS_DCDC
input
decoupling
10 µF to 22 µF
10 µF
To VDDR
pins
CC26xx
(GND exposed die
attached pad)
Pin 2 (RF N)
Pin 1 (RF P)
Pin 2 (RF N)
Pin 1 (RF P)
Differential operation
6.8 pF
2.4 nH
1 pF
Antenna
(50 Q)
2 nH 2 nH
2.4 to 2.7 nH _{1 pF}
12 pF
1 pF
24-MHz XTAL
(Load capacitors on chip)
Figure 7-1. CC2640R2F-Q1 Application Circuit
Copyright © 2017, Texas Instruments Incorporated
Copyright © 2017, Texas Instruments Incorporated
Application, Implementation, and Layout
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