Analog Devices EVAL-AD7903SDZ User Manual page 9

EVAL-AD7903SDZ User Guide
VIN1+
VIN1–
VIN2+
VIN2–
(OPTIONAL)
–V
S
POWER SUPPLY CIRCUITRY
ADP7104, ADP2301
GND
+V
+7.5V/–2.5V
S
(OPTIONAL)
VDD
GND
VSDP
+7.5V
ADA4841-1
IN1+
–2.5V
+7.5V
IN1–
ADA4841-1
A B
–2.5V
ADA4841-1
+7.5V
IN2+
–2.5V
+7.5V
IN2–
ADA4841-1
A B
–2.5V
AD7902/AD7903 PulSAR EVALUATION BOARD
Figure 16. Simplified Evaluation Board Functional Block Diagram
Rev. 0 | Page 9 of 32
V = 9V
IN
WALL ADAPTER
2.5V +7.5V 3.3V +5V
ADR435
VCM
5V
AD8031
VDD1 REF1 VIO1
SDI1
SCK1
ADC1
SDO1
GND
CNV1
GLUE
LOGIC
2.5V 5V
REF2 VIO2
VDD2
SDI2
SCK2
ADC2
SDO2
GND
CNV2
GLUE
LOGIC
+5V
ADSP-BF527
DSP
SPORT
SDP BOARD
UG-609