CS5560

DS713PP1

25

3/25/08

3.11 Power Supplies & Grounding

The CS5560 can be configured to operate with its analog supply operating from 5V, or with its analog sup-

plies operating from ±2.5V. The digital interface supports digital logic operating from either 1.8V, 2.5V, or

3.3V.

Figure 6 on page 17 illustrates the device configured to operate from ±2.5V analog. Figure 7 on page 18

illustrates the device configured to operate from 5V analog.

To maximize converter performance, the analog ground and the logic ground for the converter should be

connected at the converter. In the dual analog supply configuration, the analog ground for the ±2.5V sup-

plies should be connected to the VLR pin at the converter with the converter placed entirely over the an-

alog ground plane.

In the single analog supply configuration (+5V), the ground for the +5V supply should be directly tied to

the VLR pin of the converter with the converter placed entirely over the analog ground plane. Refer to

Figure 7 on page 18.