Texas Instruments SimpleLink CC3135MOD Manual page 45

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Figure 7-1 shows the dual antenna implementation of a complete Bluetooth
coexistence network with the WLAN operating on either a 2.4- or a 5 GHz band. Note in this
implementation no Coex switch is required and only a single GPIO from the BLE device to the CC3135
device is required.
Figure 7-1. Dual-Antenna Coexistence Mode Block Diagram
7.1.2 Antenna Selection
The CC3135MOD device is designed to also support antenna selection and is controlled from Image
Creator. When enabled, there are 3 options possible options:
• ANT 1: When selected, the GPIOs that are defined for antenna selection with set the RF path for
antenna 1.
• ANT 2: When selected, the GPIOs that are defined for antenna selection will set the RF path for
antenna 2.
• Autoselect: When selected, during a scan and prior to connecting to an AP, CC3135MOD device will
determine the best RF path and select the appropriate antenna
the profile.
(1) When selecting Autoselect via the API, a reset is required in order for the CC3135MOD device to determine the best antenna for use.
(2) Refer to the Uniflash with Image Creator User
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Dual-band Antenna
RF_ABG
WLAN
CC3135MOD
CC_COEX_BLE_IN
Guidefor more information.
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BLE Ant.
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(1) (2)
. The result is the saved as port of
Applications, Implementation, and Layout
CC3135MOD
CC3135MOD
®
low energy and WLAN
45