Xilinx Virtex-5 RocketIO GTP User Manual page 262

Appendix A: MGT to GTP Transceiver Design Migration
VTTXA
VTTXB
VTRXA
VTRXB
AVCCAUXTX
AVCCAUXRXA
AVCCAUXRXB
AVCCAUXMGT
0 kW
RTERM
0 kW
MGTVREF
GNDA
Notes:
1. Capacitors are 0402 0.22 µF.
2. Ferrite beads are MP21608S221A.
3. MGTVREF is 1.235V ± 1%.
4. There are multiple GNDAs per tile.
5. MGTVREF and RTERM are for the entire column.
6. RTERM equivalent resistor is 6.2 kW ± 1% and 20 ppm/C.
7. RTERM and MGTVREF resistors should have 0402 or 0603 package size.
Virtex-4 Power Supply Filtering
Figure A-3: Virtex-II, Virtex-II Pro, Virtex-4, Virtex-5 GTP Power Supply Filtering
262
Device with
In-Package Capacitors
2.5V
AVCCAUXTX
AVCCAUXRX
VTT
VTTX
VTR
VTRX
GNDA
Virtex-II Pro Power Supply Filtering
1.5V
1.5V Typical (0 - 2.5V)
1.2V
2.5V
2.5V
R5 =
6.2 kW
(2.5V - V
REF
1 kW
V = 1.235V
REF
LM385
www.xilinx.com
Device without
In-Package Capacitors
2.5V
AVCCAUXTX
AVCCAUXRX
VTT
VTTX
VTR
VTRX
MGTAVTTTX1
MGTAVTTTX2
MGTAVTTRX
MGTAVCCA1
MGTAVCCA2
MGTAVCCPLL
Per GTP_DUAL Tile
Per Device
MGTRREF
)/100 mA
MGTAVTTRXC
Notes:
1. Nominal values. Refer to the device data sheets for values
and operating conditions.
Virtex-5 GTP Power Supply Filtering
Virtex-5 RocketIO GTP Transceiver User Guide
R
(1)
1.2V
(1)
1.2V
(1)
1.0V
(1)
1.2V
MGTVTTTX
49.9W 1%
(1)
1.2V
UG196_a_03_011507
UG196 (v1.3) May 25, 2007