Configuring the Board
NOTE:
A USB cable must be connected for biasing voltage generation of 1.2 V and 0.9 V for the
reference inputs. These biasing voltages are generated by the on-board regulators which rely
on the USB supply.
shows the jumper configuration for a USB power supply. The
EVM settings drive the device from the USB with 1.8-V and 3.3-V supplies. Jumpers for the
header JP_3_10 are set to 3.3-V regulator and for JP_3_3_12 header to 1.8-V regulator.
DVDD (JMP5), VDD_PLL (JMP1), VDD_IN (JMP4), and VDD_OUTB (JMP3) supplies are
set to 1.8 V and VDD_OUTA (JMP2) supply is set to 3.3 V. The entire device is running at
1.8 V, except the Y0, Y1, Y4, and Y5 outputs which are running at 3.3 V.
Figure 3. Jumper Configuration For USB Power Supply
7
SCAU049 – May 2012
CDCM6208 Evaluation Board
Copyright © 2012, Texas Instruments Incorporated
