DS923 Datasheet, PDF (37/56 Pages) Xilinx, Inc – DC and AC Switching Characteristics

Virtex UltraScale+ FPGA Data Sheet: DC and AC Switching Characteristics
X-Ref Target - Figure 3
+V
P
N
0
X-Ref Target - Figure 4
+V
Figure 3: Single-Ended Peak-to-Peak Voltage
Single-Ended
Peak-to-Peak
Voltage
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Differential
0
Peak-to-Peak
Voltage
–V
P–N
Differential peak-to-peak voltage = (Single-ended peak-to-peak voltage) x 2
Figure 4: Differential Peak-to-Peak Voltage
ds923_04_041816
Table 41 summarizes the DC specifications of the clock input of the GTY transceivers in Virtex UltraScale+
FPGAs. Consult www.xilinx.com/products/technology/high-speed-serial for further details.
Table 41: GTY Transceiver Clock DC Input Level Specification
Symbol
DC Parameter
V_IDIFF
R_IN
C_EXT
Differential peak-to-peak input voltage
Differential input resistance
Required external AC coupling capacitor
Min
250
–
–
Typ
–
100
10
Max
2000
–
–
Units
mV
Ω
nF
Table 42: GTY Transceiver Clock Output Level Specification
Symbol
Description
Conditions
V_OL
V_OH
V_DDOUT
Output high voltage for P and N
Output low voltage for P and N
Differential output voltage
(P–N), P = High
(N–P), N = High
R_T = 100Ω across P and N signals
R_T = 100Ω across P and N signals
R_T = 100Ω across P and N signals
V_CMOUT Common mode voltage
R_T = 100Ω across P and N signals
Min
–
–
–
–
Typ
Max
–
–
Units
mV
mV
–
mV
–
mV
DS923 (v1.0) April 20, 2016
Advance Product Specification
www.xilinx.com
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