XQ2V3000 Xilinx, XQ2V3000 Datasheet - Page 16

• Manufacturer Part Number: XQ2V3000
• Description: QPro Virtex-II 1.5V Military QML Platform FPGAs
• Manufacturer: Xilinx

QPro Virtex-II 1.5V Military QML Platform FPGAs
Figure 13
standards. For a complete list, see the Virtex-II User Guide (
16
Recommended
Conventional
DCI Transmit
Conventional
Receive
Conventional
Transmit
DCI Receive
DCI Transmit
DCI Receive
Bidirectional
Reference
Resistor
Z 0
(2)
provides examples illustrating the use of the SSTL2_I_DCI, SSTL2_II_DCI, SSTL3_I_DCI, and SSTL3_II_DCI I/O
Virtex-II DCI
Virtex-II DCI
Notes:
1. The SSTL-compatible 25Ω series resistor is accounted for in the DCI buffer, and it is not DCI controlled.
2. Z 0 is the recommended PCB trace impedance.
25Ω
25Ω
VRN = VRP = R = Z 0
(1)
(1)
R/2
R/2
SSTL2_I
50 Ω
N/A
Z 0
Z 0
Z 0
Z 0
V
V
CCO
R
CCO
R
V CCO
Virtex-II DCI
V CCO
Virtex-II DCI
/2
/2
2R
2R
2R
2R
Figure 13: SSTL DCI Usage Examples
25Ω
Virtex-II DCI
Virtex-II DCI
25Ω
25Ω
Virtex-II DCI
(1)
(1)
V CCO
(1)
VRN = VRP = R = Z 0
V CCO
2R
2R
V CCO
V CCO/2
2R
2R
R/2
V CCO /2
R/2
2R
2R
R
SSTL2_II
R
50 Ω
Z 0
Z 0
Z 0
www.xilinx.com
Z 0
1-800-255-7778
Z 0
V CCO /2
V CCO /2
R
R
V CCO
Virtex-II DCI
2R
2R
V CCO
Virtex-II DCI
V CCO
Virtex-II DCI
2R
2R
UG002
2R
2R
25Ω
(1)
).
Virtex-II DCI
Virtex-II DCI
25Ω
25Ω
(1)
(1)
VRN = VRP = R = Z 0
R/2
R/2
SSTL3_I
Z 0
Z 0
50 Ω
Z 0
Z 0
N/A
V
V CCO /2
CCO
R
R
V CCO
Virtex-II DCI
V CCO
Virtex-II DCI
/2
2R
2R
2R
2R
25Ω
25Ω
25Ω
Virtex-II DCI
Virtex-II DCI
Virtex-II DCI
(1)
DS122 (v1.1) January 7, 2004
(1)
(1)
VRN = VRP = R = Z 0
V CCO
2R
2R
V CCO
V CCO
V CCO/2
2R
2R
R/2
V CCO /2
R/2
2R
2R
R
Product Specification
50 Ω
R
SSTL3_II
Z 0
Z 0
Z 0
Z 0
Z 0
V CCO /2
V CCO /2
R
DS031_65b_112502
R
V CCO
Virtex-II DCI
2R
2R
Virtex-II DCI
V CCO
V CCO
Virtex-II DCI
2R
2R
2R
2R
25Ω
(1)
R