Cirrus Logic CS4234 - Manual (Page 13)

DS899F1 13
CS4234
100 k 
4.7 uF
100 k 
100 k 
470 pF
634 
90.9 
Analog Signal + +
-
100 k 
4.7 uF
100 k 
100 k 
470 pF
634 
90.9 
Analog Signal - +
-
VA
VA
2700 pF
Figure 3. Test Circuit for ADC Performance Testing
CS4234 AINx +
CS4234 AINx -
Operational
Amplifier
OUT
GND
Power DAC
Analog
Out
GND
PWR
DUT
+Vcc
+Vcc
+
-
OUT
Test Equipment
Analog Generator Analyzer
-Vcc
Digital
Out
+ - + -
+ -
Figure 4. PSRR Test Configuration