CS4272 Cirrus Logic, CS4272 Datasheet - Page 33

• Manufacturer Part Number: CS4272
• Description: 24-Bit / 192 kHz Stereo Audio CODEC
• Manufacturer: Cirrus Logic

5.4.2
The recommended output filter configuration is shown in Figure 14. This filter configuration accounts for the normally
differing AC loads on the AOUT+ and AOUT- differential output pins. It also shows an AC coupling configuration
which minimizes the number of required AC coupling capacitors.
The CS4272 does not include phase or amplitude compensation for an external filter, and therefore the DAC system
phase and amplitude response will be dependent on the external analog circuitry. Figure 15 shows the full-scale an-
alog output levels.
DS593F1
CS4272
AOUT+
AOUT-
Output Connections
CS4272
1.33 kΩ
4.42 kΩ
Figure 14. CS4272 Recommended Analog Output Filter
2200 pF
6.8 nF
AOUT+
C0G
C0G
AOUT-
Full-Scale Output Level= (AIN+) - (AIN-)= 5 Vpp
Figure 15. Full-Scale Analog Output
2.32 kΩ
1.50 kΩ
715 Ω
4.99 kΩ
22 µF
+
-
470 pF
1.5 nF
C0G
C0G
22 µF
3.75 V
2.5 V
1.25 V
3.75 V
2.5 V
1.25 V
560 Ω
47 kΩ
CS4272
Analog
Out
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