GL9701 PCI ExpressTM to PCI Bridge
CHAPTER 7 Electrical Characteristics
7.1 Operation Conditions
Symbol
VDD
Parameter
Min.
1.62
Typ.
1.8
Max.
1.98
Unit
Volt
Non-AUX GL9701 Bridge Core Power
Non-AUX PCI Pad Power
2.97
3.3
3.63
Volt
VDD33
AUX GL9701 Bridge Core Power
AUX PCI Pad Power
1.62
2.97
1.8
3.3
1.98
3.63
Volt
Volt
VDD18_AUX
VDD33_AUX
Analog Power for PCI PLL
Analog power for PLL
Analog Power for RX
Analog Power for TX
1.62
1.62
1.62
1.62
1.8
1.8
1.8
1.8
1.98
1.98
1.98
1.98
Volt
Volt
Volt
Volt
AVDDPCI
VDDPLL
VDDRX
VDDTX
7.2 Differential Transmitter (TX) Output Specification
The following table defines the specification of parameters for the differential output at all
Transmitters (TXs). The parameters are specified at the component pins.
Symbol
UI
Parameter
Min
Typ
Max
Units
Comments
Unit Interval
399.88
400
400.12
ps
Each UI is 400 ps
+/-300 ppm. UI does
not account for SSC
dictated variations.
See Note 1.
Differential
Peak
0.800
-3.0
1.2
V
VTX-DIFFp-p =
2*|VTX-D+ - VTX-D-|
See Note 2.
VTX-DIFFp-p
to Peak Output
Voltage
De-Emphasized
Differential
Output Voltage
(Ratio)
-3.5
-4.0
dB
This is the ratio of the
VTX-DIFFp-p of the
second and following
bits after a transition
divided by the
VTX-DE-RATIO
VTX-DIFFp-p of the
first bit after a
transition.
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