DS80PCI800 Datasheet, PDF (7/39 Pages) Texas Instruments – 2.5 Gbps / 5.0 Gbps / 8.0 Gbps 8 Channel PCI Express Repeater with Equalization and De-Emphasis

Symbol
Parameter
Conditions
Min
Typ
Max
Units
CML Receiver Inputs (IN_n+, IN_n-)
RL_rx-diff
RX Differential return 0.05 - 1.25 GHz
loss
1.25 - 2.5 GHz
-16
dB
-16
dB
2.5 - 4.0 GHz
-14
dB
RLrx-cm
RX Common mode
return loss
0.05 - 2.5 GHz
2.5 - 4.0 GHz
-12
dB
-8
dB
Zrx-dc
RX DC common mode Tested at VDD = 2.5 V
impedance
40
50
60
Ω
Zrx-diff-dc
RX DC differntial mode Tested at VDD = 2.5 V
impedance
80
100
120
Ω
Vrx-diff-dc
Differential RX peak to Tested at pins
peak voltage (VID)
0.6
1.0
1.2
V
Zrx-high-imp- DC Input common
VID = 0 to 200mV,
50
KΩ
dc-pos
mode impedance for ENSMB = 0, RXDET = 0,
V>0
VDD = 2.5 V
Vrx-signal-det- Signal detect assert
diff-pp
level for active data
signal
SD_TH = float,
0101 pattern at 8 Gbps
180
mVp-p
Vrx-idle-det-
diff-pp
Signal detect de-assert SD_TH = float,
level for electrical idle 0101 pattern at 8 Gbps
110
mVp-p
7
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