Zynq ZedBoard User Manual

1-Aug-2012
30
The table below shows the minimum required voltage rails, currents, and tolerances.
Table 19 - TPS65708 Connections
Voltage (V)
Current (A)
Tolerance
1.0 (Vccint)
1.3
5.00%
1.5 (Vccoddr)
1.5
5.00%
1.8 (Vccaux)
0.8
5.00%
1.8, 2.5, 3.3
(jumper adjustable, 2.5V
default) (Vadj)
2
5.00%
3.3 (Vcco/FMC/Pmod)
3
5.00%
1.8 (analog) (Vccadc)
0.15
5.00%
1.25 reference (Vrefp)
0.005
0.2%, 50ppm/ºC
0.75 (DDR3 Vtt)
1.5
5.00%
5.0 (Filtered for XADC)
0.15
5.00%
2.11.4 Sequencing
Sequencing for the power supplies follows the recommendations for the Zynq device. PS and PL
INT and AUX supplies are tied together on the ZedBoard platform to create a low cost design.
The following diagram illustrates the supply sequencing:
5V
1V Vccint
1.8V XADC
1.8V Vccaux
3.3V Vcco
Vadj (1.8/2.5/3.3)
1.5V Vccoddr
0.75V Vtt
1.25V Vref
Figure 18 - Power Sequencing
In addition to the sequencing, a power on reset circuit is used to hold the board in reset until all
power supplies have reached their regulation point.

Zynq ZedBoard Specifications

General

Brand	Zynq
Model	ZedBoard
Category	Motherboard
Language	English