10
VC7203 GTX Transceiver Characterization Board
UG957 (v1.0) October 10, 2012
Chapter 1:
VC7203 Board Features and Operation
The VC7203 board uses power regulators and PMBus compliant digital PWM system
controllers from Texas Instruments to supply the FPGA logic and utility voltages listed in
. The board can also be configured to use an external bench power supply for each
voltage. See
.
X-Ref Target - Figure 1-3
Figure 1-3:
VC7203 Board Power Supply Block Diagram
UG957_c1_0
3
_100712
MGTVCCAUX
MGTAVTT
MGTAVCC
VCCAUX
VCCINT
VCCAUX_IO
VCCBRAM
VCCO_HR
VCCO_HP
Power
Su
pply
12V PWR IN
J2 or J29
or J1
3
1
Power Controller 1
UCD9248PFC
U9
S
witching Reg
u
l
a
tor
s
(2 Ph
as
e
s
)
1.0V
a
t 40A m
a
x
U5, U51
S
witching Reg
u
l
a
tor
1.8V
a
t 10A m
a
x
U56
S
witching Reg
u
l
a
tor
1.0V
a
t 10A m
a
x
S
witching Reg
u
l
a
tor
1.8V
a
t 10A m
a
x
U6
Power Controller 2
UCD9248PFC
U10
S
witching Reg
u
l
a
tor
1.8V
a
t 10A m
a
x
U57
S
witching Reg
u
l
a
tor
1.8V
a
t 10A m
a
x
S
witching Reg
u
l
a
tor
5.0V
a
t 10A m
a
x
U2
S
witching Reg
u
l
a
tor
3
.
3
V
a
t 18A m
a
x
U1
3
UTIL_5V0
UTIL_
3
V
3
7
S
erie
s
GTX Power Mod
u
le
1.05V
a
t 12.0A m
a
x
1.2V
a
t 8.0A m
a
x
1.8V
a
t 2.6A m
a
x
Line
a
r Reg
u
l
a
tor
2.5V
a
t
3
A m
a
x
U62
VCCO_0
S
witching Reg
u
l
a
tor
2.5V
a
t 18A m
a
x
U52
UTIL_2V5
U50
U58