24

DS624A1

CS5368

3.1

Suggested Analog Input Buffer

Figure 7. "Recommended Analog Input Buffer" shows a recommended analog input buffer for a differential

to differential topology. For additional configurations, refer to Crystal Application Note number AN241. A

low-cost, single-ended (RCA jack) to differential solution is shown in the schematics of the Customer Eval-

ution Board Datasheet (CDB5368).

Figure 7. Recommended Analog Input Buffer

VQ

+

634

Ω

634

Ω

91

Ω

91

Ω

+

-

-

2700 pF

470 pF

470 pF

COG

COG

10 uF

10 uF

ADC AIN+

ADC AIN-

AIN+

AIN-

COG

100k

Ω

10 k

Ω

10 k

Ω

100k

Ω