89hpes12n3a Integrated Device Technology, 89hpes12n3a Datasheet - Page 17

• Manufacturer Part Number: 89hpes12n3a
• Description: 12-lane, 3-port Pcie I/o Expansion Switch
• Manufacturer: Integrated Device Technology

DC Electrical Characteristics
IDT 89HPES12N3A Data Sheet
PCIe REFCLK
Values based on systems running at recommended supply voltages, as shown in Table 13.
I/O Type
Serial Link
Note: See Table 8, Pin Characteristics, for a complete I/O listing.
PCIe Transmit
V
V
V
V
V
active-idle-delta
V
delta
V
V
RL
RL
Z
Z
Transmitter Eye
Diagram
Transmitter Eye
Diagram
PCIe Receive
V
V
RL
RL
Z
Z
Z
Z-DC
V
DIFFp-p
C
Parameter
TX-DEFF-DC
OSE
RX-DIFF-DC
RX-COMM-DC
RX-COMM-HIGH-
TX-DIFFp-p
TX-DE-RATIO
TX-DC-CM
TX-CM-ACP
TX-CM-DC-
TX-CM-DC-line-
TX-Idle-DiffP
TX-RCV-Detect
RX-DIFFp-p
RX-CM-AC
RX-IDLE-DET-
IN
TX-DIFF
TX-CM
RX-DIFF
RX-CM
Differential peak-to-peak output voltage
De-emphasized differential output voltage
DC Common mode voltage
RMS AC peak common mode output volt-
age
Abs delta of DC common mode voltage
between L0 and idle
Abs delta of DC common mode voltage
between D+ and D-
Electrical idle diff peak output
Voltage change during receiver detection
Transmitter Differential Return loss
Transmitter Common Mode Return loss
DC Differential TX impedance
Single ended TX Impedance
TX Eye Height (De-emphasized bits)
TX Eye Height (Transition bits)
Differential input voltage (peak-to-peak)
Receiver common-mode voltage for AC
coupling
Receiver Differential Return Loss
Receiver Common Mode Return Loss
Differential input impedance (DC)
Single-ended input impedance
Powered down input common mode
impedance (DC)
Electrical idle detect threshold
Input Capacitance
Description
Table 18 DC Electrical Characteristics (Part 1 of 2)
17 of 31
Min
200k
800
-0.1
505
800
175
1.5
12
80
40
15
80
40
65
-3
6
6
1
Typ
350k
100
650
950
100
50
50
—
1
1
Max
1200
1200
100
600
120
150
120
175
3.7
20
25
20
60
60
-4
1
Unit
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
mV
dB
dB
dB
dB
dB
pF
Ω
Ω
Ω
Ω
Ω
V
Conditions
March 27, 2008