参数资料
型号: 89HPES12T3G2
厂商: Integrated Device Technology, Inc.
英文描述: 12-Lane 3-Port Gen2 PCI Express Switch
中文描述: 12巷3端口第二代的PCI Express开关
文件页数: 17/31页
文件大小: 291K
代理商: 89HPES12T3G2
17 of 31
September 4, 2007
IDT 89HPES12T3G2 Data Sheet
A
Serial Link
(cont.)
PCIe Receive
V
RX-DIFFp-p
Differential input voltage (peak-
to-peak)
175
1200
120
1200
mV
RL
RX-DIFF
Receiver Differential Return
Loss
10
10dB:
0.05 -
1.25GHz
8dB:
1.25 -
2.5GHz
dB
RL
RX-CM
Receiver Common Mode Return
Loss
6
6
dB
Z
RX-DIFF-DC
Differential input impedance
(DC)
80
100
120
Refer to return loss spec
Ω
Z
RX--DC
DC common mode impedance
40
50
60
40
60
Ω
Z
RX-COMM-DC
Powered down input common
mode impedance (DC)
200k
350k
50k
Ω
Z
RX-HIGH-IMP-
DC-POS
DC input CM input impedance
for V>0 during reset or power
down
50k
50k
Ω
Z
RX-HIGH-IMP-
DC-NEG
DC input CM input impedance
for V<0 during reset or power
down
1.0k
1.0k
Ω
V
RX-IDLE-DET-
DIFFp-p
Electrical idle detect threshold
65
175
65
175
mV
V
RX-CM-ACp
Receiver AC common-mode
peak voltage
150
150
mV
V
RX-CM-ACp
PCIe REFCLK
C
IN
Input Capacitance
1.5
1.5
pF
Other I/Os
LOW Drive
Output
I
OL
2.5
2.5
mA
V
OL
= 0.4v
I
OH
-5.5
-5.5
mA
V
OH
= 1.5V
High Drive
Output
I
OL
12.0
12.0
mA
V
OL
= 0.4v
I
OH
-20.0
-20.0
mA
V
OH
= 1.5V
Schmtt
Trigger
Input (STI)
V
IL
-0.3
0.8
-0.3
0.8
V
V
IH
2.0
V
DD
I/O
+ 0.5
2.0
V
DD
I/O +
0.5
V
Input
V
IL
-0.3
0.8
-0.3
0.8
V
V
IH
2.0
V
DD
I/O
+ 0.5
2.0
V
DD
I/O +
0.5
V
I/O Type
Parameter
Desc ription
Gen 1
Gen 2
Unit
Condi-
tions
Min
1
Typ
1
Max
1
Min
1
Typ
1
Max
1
Table 17 DC Electrical Characteristics (Part 2 of 3)
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