EBE21FE8ACFT
Differential Receiver Input Specifications*1
Parameter
Symbol
min.
170
max.
1300
Unit
mV
Comments
Differential peak-to-peak input
voltage
VRX-DIFFp-p = 2×|VRX-D+ -VRX-D-|
Measured as note 2
VRX-DIFFp-p
Maximum single-ended voltage
for EI condition (AC + DC)
VRX-IDLE-SE
65
mV
mV
mV
mV
mV
3, 4, 5, 6
3, 4, 5, 6, 7
4, 5, 6
5
Maximum single-ended voltage
for EI condition (DC only)
VRX-IDLE-SE-DC
VRX-IDLE-DIFFp-p
VRX-SE
35
Maximum peak-to-peak differential
voltage for EI condition
65
Single-ended voltage (w.r.t. VSS)
on D+/D-
−300
900
Single-pulse peak differential input
voltage
VRX-DIFF-PULSE
85
5, 8
Amplitude ratio between adjacent
symbols,
1100mV < VRX-DIFFp-p<= 1300mV
VRX-DIFF-ADJ
RATIO- HI
3.0
4.0
5, 9
5, 9
Amplitude ratio between adjacent
symbols,
VRX-DIFFp-p <= 1100mV
VRX-DIFF-ADJ
RATIO
Maximum RX inherent timing error TRX-TJ-MAX
0.4
0.3
UI
UI
5, 10, 11
Maximum RX inherent
TRX-DJ-DD
5, 10, 11, 12
deterministic timing error
Single-pulse width at zero-voltage
TRX-PW-ZC
0.55
0.2
50
UI
UI
ps
5, 8
crossing
Single-pulse width at minimum-
TRX-PW-ML
5, 8
level crossing
TRX-RISE,
Differential RX input rise/fall time
TRX-FALL
Given by 20%-80% voltage levels.
Defined as:
VRX-CM = DC (avg) of |VRX-D+
+ VRX-D-|/2
Measured as note 2.
See also note 13
Common mode of the input voltage VRX-CM
120
400
mV
mV
VRX-CM-AC =
Max |VRX-D+ + VRX-D-|/2 –
Min |VRX-D+ + VRX-D-|/2
Measured as note 2
AC peak-to-peak common mode of
VRX-CM-ACp-p
270
45
input voltage
Ratio of VRX-CM-ACp-p to
VRX-CM-EH-Ratio
%
14
minimum VRX-DIFFp-p
Measured over 0.1GHz to 2.4GHz.
See also note 15
Differential return loss
RLRX-DIFF
9
dB
Measured over 0.1GHz to 2.4GHz.
See also note 15
Common mode return loss
RX termination resistance
RLRX-CM
RRX
6
dB
41
55
4
Ω
16
RRX-Match-DC =
2×|RRX-D+ − RRX-D-| / (RRX-D+
+ RRX-D-)
D+/D- RX resistance difference
RRX-Match-DC
LRX-PCB-SKEW
%
Lane-to-lane PCB skew at the
receiver that must be tolerated.
See also note 17
Lane-to-lane PCB skew at Rx
Minimum RX Drift Tolerance
6
UI
TRX-DRIFT
FTRK
400
0.2
ps
18
Minimum data tracking 3dB
bandwidth
MHz
19
TEI-ENTRY -
DETECT
Electrical idle entry detect time
60
ns
ns
20
21
Electrical idle exit detect time
Bit Error Ratio
TEI-EXIT -DETECT
BER
30
10-12
Data Sheet E1090E30 (Ver. 3.0)
16
ELPIDA [ ELPIDA MEMORY ]
