PI2EQX5864 Datasheet, PDF (1/18 Pages) Pericom Semiconductor Corporation – 5.0Gbps 4-Lane PCI Express GenII Re-Driver with Equalization, Emphasis, &I2C Control

PI2EQX5864
5.0Gbps 4-Lane PCI Express GenII Re-Driver
with Equalization, Emphasis, &I²C Control
Features
• Up to 5.0Gbps PCI Express Gen-2 Serial Re-driver
• Supporting 8 differential channels or 4 lanes of PCIe Interface
• I²C configuration controls (3.3V Tolerant)
• Adjustable receiver equalization and transmitter de-emphasis
and output levels
• Variable input an output termination
• 1:2 channel broadcast
• Channel loop-back
• Electrical Idle fully supported
• Receiver detect and individual output control
• Single supply voltage, 1.2V ± 0.05V
• Power down modes
• Packaging: 56-contact TQFN, Pb-free & Green
Description
Pericom Semiconductor’s PI2EQX5864 is a low power,
PCI-express compliant signal re-driver. The device provides
programmable equalization, amplification, and de-emphasis by
using 8 select bits, to optimize performance over a variety of
physical mediums by reducing Inter-symbol interference.
PI2EQX5864 supports eight 100-Ohm Differential CML data
I/O’s between the Protocol ASIC to a switch fabric, across
a backplane, or extends the signals across other distant data
pathways on the user’s platform.
The integrated equalization circuitry provides flexibility with
signal integrity of the PCI-express signal before the re-driver,
whereas the integrated de-emphasis circuitry provides flexibility
with signal integrity of the signal after the re-driver.
In addition to providing signal re-conditioning, Pericom’s
PI2EQX5864 also provides power management Stand-by mode
operated by a Bus Enable pin.
Block Diagram
xyRx+
xyRx-
xyTx+
xyTx-
+
−
+
Input level detect
to control logic
−
Equalizer
Output
Controls
+
−
xxTx+
xxTx-
+
−
Output
Controls
A
B
Input level detect
to control logic
Equalizer
+
−
+
−
Data Lane Repeats 4 Times
xyRx+
xyRx-
Control registers
& logic
Mode
LB#
RXD_x
RES_x
Power
Management
SDA
SCL
I²C Control
Ax
Pin Configuration
VDD
A0RX+
A0RX-
B0TX+
B0TX-
VDD
A1RX+
A1RX-
B1TX+
B1TX-
VDD
A2RX+
A2RX-
B2TX+
B2TX-
VDD
A3RX+
A3RX-
B3TX+
B3TX-
56 55 54 53 52 51 50 49
1
48
2
47
3
46
4
45
5
44
6
43
7
42
8
41
9
40
10
39
11
38
12
37
13
36
14
35
15
34
16
33
17
32
18
31
19
30
20
29
21 22 23 24 25 26 27 28
A0TX+
A0TX-
B0RX+
B0RX-
VDD
A1TX+
A1TX-
B1RX+
B1RX-
VDD
A2TX+
A2TX-
B2RX+
B2RX-
VDD
A3TX+
A3TX-
B3RX+
B3RX-
VDD
07-0277
1
PS8934A
01/21/08