Achronix Speedster22i SerDes - Manual (Page 108)

Receiver
Table 26: DC and AC Switching Characteristics
Parameter Description Min Typ Max Unit
V
RX-DIFF-PKPK
Differential Input Peak to Peak Voltage for
AC coupnling
- 2000
mV
diffp-
p
V
RX-CM-DC
Receiver Input DC Common Mode Voltage 0 mV
diff-
pkpk
V
RX-CM-AC
Receiver Input AC Common Mode Voltage -150 150 mV
diff-
pkpk
V
RX-SENS
Receiver Input Voltage Sensitivity 30 mV
diff-
pkpk
F
PPM-OFFSET
Frequency tolerance
-
5350
650 350 PPM
V
RX
Common mode AC return loss (standard
specific)
2 12 dB
V
RX
Power down DC input impedance 200 kΩ
V
RX
Input common mode frequency 2 200 MHz
JTOL (TJ) Total Jitter Tolerance 0.65 0.95 UIpp
JTOL (RJ) Random Jitter Tolerance 0.15 0.30 UIpp
JTOL (DJ) Deterministic Jitter Tolerance 0.30 0.68 UIpp
T
RX-DDJ
Receive Input Signal Data Dependant Jitter
(Inter-Symbol Interference).
1 UI
pkpk
T
RX-RJ
Receive Input Random Jitter 0.3 UI
pkpk
T
RX-PJ
Receive Input Period Jitter (at high
frequency)
0.1 UI
pkpk
T
RX-TJ
Receive Input Total Jitter (DDJ + RJ + PJ). 1 UI
pkpk
N
GPLL
F3dB cutoff frequency for the 1 st Order High-
Pass Jitter Measurement Filter.
Defined as the ratio of the F
3DB
cutoff
frequency, to the data rate
1667 F
BAUD
/
F
GPLL
V
ADC-RES
ADC Sampling Voltage Resolution per LSB 8 mV
diff
V
ADC-RANGE
ADC Full-scale Differential Peak-Peak
Voltage Range defined at the Input Pins of
the SerDes
700
mV
diff
-
pkpk
V
ADC-DNL
ADC Sampling Voltage Differential Non-
Linearity (DNL)
3 mV
diff
T
SAMPLE
ADC Real Time Sampling Rate 2 8 2 UI
T
ADC-RES
ADC Effective Sub-Sampling Rate 1/32 UI
T
ADC-RANGE
Total Time-Domain Sampling Range 1 2 8 UI
T
ADC-DNL
Time Domain Sampling Differential Non-
Linearity (DNL)
1/32 UI
Z
RL-DIFF-DC
Receiver Differential DC Return Loss -18 dB
Z
RL-DIFF-NYQ
Receiver Differential Return Loss at Nyquist
Frequency (F
BAUD
/2)
-6 dB
Z
RL-CM-DC
Receiver Common-Mode DC Return Loss -12 dB
108 UG028, July 1, 2014