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8.3 Board Configurations
8.3.1 Power Supplies Configuration
The CC2564MODN device requires the following power sources:
• VDD_IN: the main power supply for the module
• VDD_IO: the power source for the 1.8-V I/O ring
The HCI module includes several on-chip voltage regulators for increased noise immunity and can be connected
directly to the battery.
8.3.1.1 Jumper Configuration
The CC2564MODNEM board has four jumpers that can be configured to control power on the board. The
power supply can be enabled through either the COM or EM connector through the VBAT_MCU or VBAT_EDGE
jumper. VBAT_EDGE and VBAT_MCU are the power supply to the entire board. VDD_1V8 is the power supply
jumper to the pins going in and out of the module, while the VBAT_CC jumper is the main default power supply
to the CC2564. Ensure to place jumpers to connect power to the device.
Table 8-5. Jumper Configurations
Jumper Description
VDD_1V8 (J1) Supplies power to CC2564 I/Os
VBAT_CC (J2) Main power supply for CC2564
VBAT_EDGE (J3) Enable power supply through the COM connector
VBAT_MCU (J4) Enable power supply through EM connectors
Figure 8-2 shows the default settings for the jumpers on the CC2564MODNEM board. The configuration for the
board can be found in Table 8-5 .
Figure 8-2. Jumper Configuration
8.3.1.2 Measuring Current Consumption
These jumpers can measure the current consumption by placing current sense resistors on R10 for VBAT_CC
and R7 for VDD_1V8. Both of these resistors are 0.10 Ω, 1/4 W. The VBAT_CC jumper (J2) can measure the
power consumed by the CC2564 including the RF TX and RF RX while the VDD_1V8 jumper (J1) can measure
power consumed by the digital VDD_IO.
8.3.2 RF Interface
The board can be configured to route the radio frequency (RF) output from the CC2564MODN to the on-board
chip antenna or the on-board U.FL connector. This configuration is done by placing the resistor in either R29 or
R30 position which has negligible resistance of 0 Ω. R30 connects the RF output to the U.FL while R29 connects
to the chip antenna. The U.FL connector is for testing. The
Bluetooth Hardware Evaluation Tool (BHET) can be
used to test the basic RF functionality of this board.
Hardware Description www.ti.com
12 Dual-Mode Bluetooth ® CC2564 Module Evaluation Board SWRU390A – AUGUST 2014 – REVISED AUGUST 2021
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