DS705 XILINX [Xilinx, Inc], DS705 Datasheet - Page 15

• Manufacturer Part Number: DS705
• Description: XA Spartan-3A DSP Automotive FPGA Family Data Sheet
• Manufacturer: XILINX [Xilinx, Inc]

External Termination Requirements for Differential I/O
LVDS, RSDS, MINI_LVDS, and PPDS I/O Standards
X-Ref Target - Figure 5
BLVDS_25 I/O Standard
X-Ref Target - Figure 6
TMDS_33 I/O Standard
X-Ref Target - Figure 7
Device DNA Read Endurance
Table 15: Device DNA Identifier Memory Characteristics
DS705 (v1.1) January 20, 2009
Product Specification
DNA_CYCLES
Symbol
R
Figure 5: External Input Termination for LVDS, RSDS, MINI_LVDS, and PPDS I/O Standards
Figure 6: External Output and Input Termination Resistors for BLVDS_25 I/O Standard
V
V
MINI_LVDS_33,
RSDS_33,
PPDS_33
MINI_LVDS_33,
RSDS_33,
PPDS_33
LVDS_33,
LVDS_33,
CCO
CCO
= 3.3V
= 3.3V
Number of READ operations or JTAG ISC_DNA read operations. Unaffected by
HOLD or SHIFT operations.
Figure 7: External Input Resistors Required for TMDS_33 I/O Standard
V
Any Bank
CCO
BLVDS_25
V
V
Bank 0
Bank 2
MINI_LVDS_25,
RSDS_25,
PPDS_25
MINI_LVDS_25,
RSDS_25,
PPDS_25
LVDS_25,
LVDS_25,
a) Input-only differential pairs or pairs not using DIFF_TERM=Yes constraint
b) Differential pairs using DIFF_TERM=Yes constraint
CCO
CCO
= 2.5V
= 2.5V
= 2.5V
Bank 0 and 2
V
Bank 0 and 2
CCO
TMDS_33
Bank 0
Bank 2
165Ω
165Ω
CAT16-LV4F12
1/4th of Bourns
Bank 0
Bank 2
= 3.3V
Part Number
140Ω
DVI/HDMI cable
Description
www.xilinx.com
Z
Z
Z
Z
0
0
0
0
Z
Z
= 50Ω
= 50Ω
= 50Ω
= 50Ω
0
0
50Ω
= 50Ω
= 50Ω
XA Spartan-3A DSP Automotive FPGA Family Data Sheet
1/4th of Bourns
3.3V
CAT16-PT4F4
Part Number
1/4th of Bourns
CAT16-PT4F4
Part Number
100Ω
50Ω
100Ω
DIFF_TERM=No
DIFF_TERM=Yes
V
Any Bank
TMDS_33
CCAUX
DS705_08_061908
Bank 0
Bank 2
Any Bank
BLVDS_25
No V
R
Any Bank
Bank 0
Bank 2
DT
= 3.3V
Bank 0
Bank 2
CCO
V
LVDS_33,
MINI_LVDS_33,
RSDS_33,
PPDS_33
CCO
Requirement
DS705_07_061908
No V
RSDS_33, RSDS_25,
PPDS_33, PPDS_25
LVDS_33, LVDS_25,
MINI_LVDS_33,
MINI_LVDS_25,
= 3.3V
CCO
Restrictions
V
LVDS_25,
MINI_LVDS_25,
RSDS_25,
PPDS_25
DS705_06_061908
CCO
30,000,000
Minimum
= 2.5V
cycles
Units
Read
15