Xilinx VC7203, User Manual

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VC7203 GTX Transceiver Characterization Board www.xilinx.com 11
UG957 (v1.0) October 10, 2012
Detailed Description
Using External Power Sources
Callout 18 , Figure 1-2
Each voltage rail for the FPGA logic and GTX transceivers has an associated jack (or jacks)
that can be used to provide power from an external source (
Table 1-3 ). The jacks are
binding posts that accept standard banana plugs.
Table 1-2: Onboard Power System Devices
Device Part
Number
Reference
Designator(s)
Description
Power Rail
Net Name
Voltage
FPGA Logic
UCD9248PFC
U9 Digital PWM system controller, PMBUS address 52
PTD08A020W
U5, U51
Adjustable
(1)
switching regulator, 40A (two phases at 20A/phase),
0.6V to 3.6V
VCCINT 1.0V
PTD08A010W U6 Adjustable
(1)
switching regulator, 10A, 0.6V to 3.6V VCCAUX 1.8V
PTD08A010W U56 Adjustable
(1)
switching regulator 10A, 0.6V to 3.6V VCCBRAM 1.0V
PTD08A020W
U50
Adjustable
(1)
switching regulator, 40A (two phases @ 20A/phase),
0.6V to 3.6V
VCCAUX_IO 1.8V (default)
UCD9248PFC
U10 Digital PWM system controller, PMBUS address 53
PTD08A010W
U57 Adjustable switching regulator, 10A, 0.6V to 3.6V VCCO_HP 1.8V
PTD08A010W
U58 Adjustable switching regulator, 10A, 0.6V to 3.6V VCCO_HR 1.8V (default)
Utility
PTH12060W
U2 Fixed switching regulator, 10A UTIL_5V0 5.0V
PTH12020W
U13 Fixed switching regulator, 18A UTIL_3V3 3.3V
PTH12020W
U52
Fixed switching regulator, 18A
UTIL_2V5 2.5V
TPS75925
U62 Fixed LDO regulator, 3A VCCO_0 2.5V
GTX Transceivers (monitoring only)
UCD9248PFC
(2)
U11 Digital PWM system controller, PMBUS address 54
XADC
(3)
ADP123
U43
Fixed LDO regulator
VCCADC_ADP 1.8V
REF3012
U45 Fixed LDO regulator VREF_3012 1.25V
System ACE SD
ADP123
U21
Fixed LDO regulator
VCC_1V2 1.2V
Notes:
1. The output voltages of regulators controlled by a UCD9248 can be reprogrammed using the Texas Instruments Fusion Digital Power
Designer application ( www.ti.com/tool/fusion_digital_power_designer ). However, extreme caution must be taken when
attempting to modify of any of the onboard regulators. An incorrectly programmed regulator can damage onboard components .
2. The UCD9248PFC (U11) at Address 54 monitors MGTAVCC, MGTAVTT, and MGTVCCAUX rail voltage and current levels which can be
observed in real time using the Texas Instruments Fusion Digital Power Designer application (see Monitoring Voltage and Current,
page 12 ). Transceiver supply voltages cannot be changed from this controller.
3. For information on XADC see UG480 , 7 Series FPGAs XADC Dual 12-Bit 1MSPS Analog-to-Digital Converter User Guide .