User Manual

Net
Name
Upstream
Net Name
Power IC
Type
Power IC
Label
Min/Typ/Max
Voltage
Max.
Current Major Devices and Connectors
Net
Name
Upstream
Net Name
Power IC
Type
Power IC
Label
Min/Typ/Max
Voltage
Max.
Current Major Devices and Connectors
VCC5V0 VIN12V0 Buck IC27 5.0V +-5% 3A Zmods, USB OTG VBUS, RGB LEDs,
Case Fan
VCC1V0 VIN12V0 Buck IC27 1.0V +-5% 1A Zynq, Ethernet, USB OTG, USB
JTAG/UART, microSD
DDR1V35 VIN12V0 Buck IC25 1.35V +-5% 2A Zynq, DDR3L
DDRVTT VIN12V0 LDO IC21 0.675V +-5% 0.45A DDR3L
VCC3V3 VIN12V0 Buck IC25 3.3V +-5% 3.3A Zynq, Zmods, Pmods, USB OTG, USB
JTAG/UART, microSD
VCC4V3 VCC5V0 LDO IC26 4.3V +-5% 0.3A Pmods
VADJA VIN12V0 Buck IC27 1.2V to 3.3V;
+-5%
1.8A FPGA, Zmod Port A
VADJB VIN12V0 Buck IC27 1.2V to 3.3V;
+-5%
1.8A FPGA, Zmod Port B
VADJC VIN12V0 Buck IC25 2.5 to 5.5V; +-
5%
0.3A FPGA Fan
The power budget of VCC5V0 is shared by the SYZYGY ports, USB OTG VBUS, RGB LEDs, and Case Fan. As such, the actual
maximum current achievable by each peripheral varies with the Eclypse Z7's system configuration. Under worst-case conditions,
VCC5V0 is capable of outputting a minimum of 3A of continuous current. In this scenario, 1A is budgeted for each Zmod
The Platform MCU (PMCU) enumerates the SYZYGY ports and determines the power needs of each Zmod installed in the system. The
5V power budget of the Eclypse is then determined based on the needs of each Zmod, as well as the USB OTG VBUS, RGB LEDs, and
Fan. Table 1.2.2 describes the 5V power budget of the Eclypse Z7 in more detail.
Table 1.2.2: Eclypse 5V Power Budget
Device or Connector Max Current (mA)
RGB LEDs 124.8
USB OTG VBUS 500
Zmod Port A 1000
Zmod Port B 1000
Case Fan 250
The two SYZYGY ports share a budget of 2A from the 3.3V supply. The two Pmod ports share a budget of 0.5A, which is allocated to
the SYZYGY ports if no Pmods are installed.
Due to the requirements of the custom power sequencer (IC29), Digilent recommends that peripheral modules (Pmods and Zmods)
attached to and powered by the Eclypse meet the specifications described in Table 1.2.3.
Table 1.2.3: Recommended Maximum Additional Capacitance for Add-on Modules
Port Rail Max Capacitance (µF)
Zmod Port A VCC5V0 500
Zmod Port A VCC3V3 500