Virtex-6 FPGA Data Sheet: DC and Switching Characteristics
GTX Transceiver Specifications
GTX Transceiver DC Characteristics
Table 13: Absolute Maximum Ratings for GTX Transceivers (1)
Symbol
MGTAVCC
MGTAVTT
MGTAVTTRCAL
V IN
V MGTREFCLK
Description
Analog supply voltage for the GTX transmitter and receiver circuits relative to
GND
Analog supply voltage for the GTX transmitter and receiver termination circuits
relative to GND
Analog supply voltage for the resistor calibration circuit of the GTX transceiver
column
Receiver (RXP/RXN) and Transmitter (TXP/TXN) absolute input voltage
Reference clock absolute input voltage
Min
–0.5
–0.5
–0.5
–0.5
–0.5
Max
1.1
1.32
1.32
1.32
1.32
Units
V
V
V
V
V
Notes:
1.
Stresses beyond those listed under Absolute Maximum Ratings might cause permanent damage to the device. These are stress ratings only,
and functional operation of the device at these or any other conditions beyond those listed under Operating Conditions is not implied.
Exposure to Absolute Maximum Ratings conditions for extended periods of time might affect device reliability.
Table 14: Recommended Operating Conditions for GTX Transceivers (1)(2)
Symbol
Description
Speed
Grade
-3, -2 (3)
PLL
Frequency
> 2.7 GHz
Min
1.0
Typ
1.03
Max
1.06
Units
V
MGTAVCC
Analog supply voltage for the GTX transmitter
and receiver circuits relative to GND
-3,
-2 (3)
-1
≤ 2.7 GHz
≤ 2.7 GHz
0.95
0.95
1.0
1.0
1.06
1.06
V
V
-1L
≤ 2.7 GHz
0.95
1.0
1.05
V
MGTAVTT
MGTAVTTRCAL
Analog supply voltage for the GTX transmitter
and receiver termination circuits relative to GND
Analog supply voltage for the resistor calibration
circuit of the GTX transceiver column
All
All
1.14
1.14
1.2
1.2
1.26
1.26
V
V
Notes:
1.
2.
3.
Each voltage listed requires the filter circuit described in UG366 : Virtex-6 FPGA GTX Transceivers User Guide .
Voltages are specified for the temperature range of T j = –40°C to +100°C for all XC devices and T j = –55°C to +125°C for the XQ devices
If a GTX Quad contains transceivers operating with a mixture of PLL frequencies above and below 2.7 GHz, the MGTAVCC voltage supply
must be in the range of 1.0V to 1.06V.
Table 15: GTX Transceiver Supply Current (per Lane) (1)(2)
Symbol
I MGTAVTT
I MGTAVCC
Description
MGTAVTT supply current for one GTX transceiver
MGTAVCC supply current for one GTX transceiver
Typ
55.9
56.1
Max
Note 2
Units
mA
mA
MGTR REF
Precision reference resistor for internal calibration termination
100.0 ± 1% tolerance
Ω
Notes:
1.
2.
Typical values are specified at nominal voltage, 25°C, with a 3.125 Gb/s line rate.
Values for currents of other transceiver configurations and conditions can be obtained by using the Xilinx Power Estimator (XPE) or XPower
Analyzer (XPA) tools.
DS152 (v3.6) March 18, 2014
Product Specification
11
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