参数资料
型号: 89HPES12NT3ZABCG
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 总线控制器
英文描述: 12-lane 3-Port Non-Transparent PCI Express㈢ Switch
中文描述: PCI BUS CONTROLLER, PBGA324
封装: 19 X 19 MM, 1 MM PITCH, GREEN, BGA-324
文件页数: 11/29页
文件大小: 263K
代理商: 89HPES12NT3ZABCG
11 of 29
April 11, 2007
IDT 89HPES12NT3 Data Sheet
S ystem Clock Parameters
Values based on systems running at recommended supply voltages and operating temperatures, as shown in Tables 12 and 13.
AC T iming Charac teristic s
Parameter
Desc ription
Min
Typic al
Max
Unit
Refclk
FREQ
Refclk
DC2
Input reference clock frequency range
100
125
1
1.
The input clock frequency will be either 100 or 125 MHz depending on signal REFCLKM.
2.
ClkIn must be AC coupled. Use 0.01 — 0.1 μF ceramc capacitors.
3.
RCUI (Reference Clock Unit Interval) refers to the reference clock period.
4.
AC coupling required.
MHz
Duty cycle of input clock
40
50
60
%
T
R
, T
F
Rise/Fall time of input clocks
0.2*RCUI
RCUI
3
V
SW
Differential input voltage swing
4
0.6
1.6
V
T
jitter
Input clock jitter (cycle-to-cycle)
125
ps
Table 8 Input Clock Requirements
Parameter
Desc ription
Min
1
Typical
1
Max
1
Units
PCIe Transmit
UI
Unit Interval
399.88
400
400.12
ps
T
TX-EYE
MnimumTx Eye Width
0.7
.9
UI
T
TX-EYE-MEDIAN-to-
MAX-JITTER
Maximumtime between the jitter median and maximum
deviation fromthe median
0.15
UI
T
TX-RISE
, T
TX-FALL
D+ / D- Tx output rise/fall time
50
90
ps
T
TX- IDLE-MIN
Mnimumtime in idle
50
UI
T
TX-IDLE-SET-TO-
IDLE
Maximumtime to transition to a valid Idle after sending
an Idle ordered set
20
UI
T
TX-IDLE-TO-DIFF-
DATA
Maximumtime to transition fromvalid idle to diff data
20
UI
T
TX-IDLE-RCV-DET-
MAX
Max time spend in idle before initiating a RX detect
sequence
20
100
ms
T
TX-SKEW
Transmtter data skew between any 2 lanes
500
1300
ps
PCIe Receive
UI
Unit Interval
399.88
400
400.12
ps
T
RX-EYE (with jitter)
MnimumReceiver Eye Width (jitter tolerance)
0.4
UI
Table 9 PCIe AC Timing Characteristics (Part 1 of 2)
相关PDF资料
PDF描述
89HPES12T3G2 12-Lane 3-Port Gen2 PCI Express Switch
89HPES12T3G2ZABC 12-Lane 3-Port Gen2 PCI Express Switch
89HPES12T3G2ZABCG 12-Lane 3-Port Gen2 PCI Express Switch
89HPES16NT2 16-Lane 2-Port Non-Transparent PCI Express㈢ Switch
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