ADSP-BF706 EZ-KIT Mini Evaluation System Manual
1-11
Using ADSP-BF706 EZ-KIT Mini
If the ADSP-BF706 EZ-KIT Mini is acting as a USB host through con-
nector
P8
and needs to supply power to a bus-powered device, install
P13
to allow the appropriate bulk capacitance.
The voltage domains of the ADSP-BF706 EZ-KIT Mini are 3.3V (
VDD_
EXT
,
3V_SLEEP
) and 1.1V (
VDD_INT
). These voltage domains are provided
by
VR1
,
VR2
, and
VR3
.
A FET switch (
U10
) controls the 5V to the USB devices over the
USB0_
VBUS
signal.
Power Measurements
Locations are provided for measuring the current draw from various power
planes. Precision 0.051 ohm shunt resistors are available on the
VDD_INT
and
VDD_EXT
voltage domains. To measure current draw, the correspond-
ing jumper is removed, voltage across the resistor is measured using an
oscilloscope, and the value of the resistor is measured using a precision
multi-meter.
P15
is the jumper for
VDD_EXT
and
P14
for
VDD_INT
. Once
voltage and resistance are measured, the current is calculated by dividing
the voltage by the resistance. For the highest accuracy, use a differential
probe for measuring the voltage across the resistor.
Example Programs
Example Analog Devices programs are provided with the ADSP-BF706
EZ-KIT Mini Board Support Package to demonstrate various capabilities
of the product. Refer to a readme file provided with each example for
more information.
Various third party demos and software examples are also available at:
.
