DS692 Datasheet, PDF (32/41 Pages) Xilinx, Inc – Radiation-Hardened

Radiation-Hardened, Space-Grade Virtex-5QV FPGA Data Sheet: DC and AC Switching Characteristics
DCM Switching Characteristics
DCM in Maximum Range (MR) mode is not supported for operation beyond industrial temperature range.
Table 47: Operating Frequency Ranges for DCM in Maximum Speed (MS) Mode
Symbol
Description
Value
Units
Outputs Clocks (Low Frequency Mode)
F_1XLFMSMIN
F_1XLFMSMAX
F_2XLFMSMIN
F_2XLFMSMAX
F_DVLFMSMIN
F_DVLFMSMAX
F_FXLFMSMIN
F_FXLFMSMAX
Input Clocks (Low Frequency Mode)
F_DLLLFMSMIN
F_DLLLFMSMAX
F_{CLKINLFFXMSMIN}
F_{CLKINLFFXMSMAX}
F_PSCLKLFMSMIN
F_PSCLKLFMSMAX
Outputs Clocks (High Frequency Mode)
CLK0, CLK90, CLK180, CLK270
CLK2X, CLK2X180
CLKDV
CLKFX, CLKFX180
CLKIN (using DLL outputs)^(1)(3)(4)
CLKIN (using DFS outputs only)^(2)(3)(4)
PSCLK
32.00
120.00
64.00
240.00
2.0
80.00
32.00
140.00
32.00
120.00
1.00
140.00
1.00
450.00
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
KHz
MHz
F_1XHFMSMIN
F_1XHFMSMAX
F_2XHFMSMIN
F_2XHFMSMAX
F_DVHFMSMIN
F_DVHFMSMAX
F_FXHFMSMIN
F_FXHFMSMAX
Input Clocks (High Frequency Mode)
F_DLLHFMSMIN
F_DLLHFMSMAX
F_{CLKINHFFXMSMIN}
F_{CLKINHFFXMSMAX}
F_PSCLKHFMSMIN
F_PSCLKHFMSMAX
CLK0, CLK90, CLK180, CLK270
CLK2X, CLK2X180
CLKDV
CLKFX, CLKFX180
CLKIN (using DLL outputs)^(1)(3)(4)
CLKIN (using DFS outputs only)^(2)(3)(4)
PSCLK
120.00
450.00
240.00
450.00
7.5
300.00
140.00
350.00
120.00
450.00
25.00
350.00
1.00
450.00
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
KHz
MHz
Notes:
1. DLL Outputs are used in these instances to describe the outputs: CLK0, CLK90, CLK180, CLK270, CLK2X, CLK2X180, and CLKDV.
2. DFS Outputs are used in these instances to describe the outputs: CLKFX and CLKFX180.
3. When using the DCMs CLKIN_DIVIDE_BY_2 attribute these values should be doubled. Other resources can limit the maximum input
frequency.
4. When using a CLKIN frequency > 400 MHz and the DCMs CLKIN_DIVIDE_BY_2 attribute, the CLKIN duty cycle must be within ±5% (45/55
to 55/45).
DS692 (v1.3.1) January 16, 2015
Product Specification
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