Spartan-6 FPGA Data Sheet: DC and Switching Characteristics
Table 15: GTP Transceiver Quiescent Supply Current (per Lane)(1)(2)(3)(4)
(5)
Symbol
Description
Quiescent MGTAVCC supply current
Typ
Max
Units
mA
IMGTAVCCQ
1.7
0.1
1.2
1.0
IMGTAVTTTXQ Quiescent MGTAVTTTX supply current
IMGTAVTTRXQ Quiescent MGTAVTTRX supply current
IMGTAVCCPLLQ Quiescent MGTAVCCPLL supply current
mA
Note 2
mA
mA
Notes:
1. Device powered and unconfigured.
2. Currents for conditions other than values specified in this table can be obtained by using the XPOWER Estimator (XPE) or XPOWER Analyzer (XPA)
tools.
3. GTP transceiver quiescent supply current for an entire device can be calculated by multiplying the values in this table by the number of available GTP
transceivers.
4. Does not include power-up MGTAVTTRCAL supply current during device configuration.
5. Typical values are specified at nominal voltage, 25°C.
GTP Transceiver DC Input and Output Levels
Table 16 summarizes the DC output specifications of the GTP transceivers in Spartan-6 FPGAs. Figure 1 shows the single-
ended output voltage swing. Figure 2 shows the peak-to-peak differential output voltage.
Consult UG386: Spartan-6 FPGA GTP Transceivers User Guide for further details.
Table 16: GTP Transceiver DC Specifications
Symbol
DC Parameter
Conditions
Min
Typ
Max
Units
Differential peak-to-peak input External AC coupled
voltage
140
–
2000
mV
DVPPIN
Absolute input voltage
DC coupled
MGTAVTTRX = 1.2V
–400
–
MGTAVTTRX mV
VIN
Common mode input voltage
DC coupled
MGTAVTTRX = 1.2V
–
–
–
3/4
–
mV
mV
VCMIN
MGTAVTTRX
Differential peak-to-peak output Transmitter output swing is set
voltage(1)
to maximum setting
–
1000
DVPPOUT
VSEOUT
VCMOUTDC
RIN
Single-ended output voltage swing(1)
Common mode output voltage Equation based
Differential input resistance
–
500
mV
mV
Ω
MGTAVTTTX – VSEOUT/2
80
80
–
100
100
–
130
ROUT
Differential output resistance
130
15
Ω
TOSKEW
CEXT
Transmitter output skew
ps
nF
Recommended external AC coupling capacitor(2)
75
100
200
Notes:
1. The output swing and preemphasis levels are programmable using the attributes discussed in the Spartan-6 FPGA GTP Transceivers User Guide
and can result in values lower than reported in this table.
2. Other values can be used as appropriate to conform to specific protocols and standards.
X-Ref Target - Figure 1
+V
0
P
N
Single-Ended
Voltage
ds162_01_112009
Figure 1: Single-Ended Peak-to-Peak Voltage
DS162 (v1.9) August 23, 2010
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