89HPES24T3G2ZCALG Integrated Device Technology (Idt), 89HPES24T3G2ZCALG Datasheet - Page 11

• Manufacturer Part Number: 89HPES24T3G2ZCALG
• Description: PCI Express Switch 324-Pin FCBGA Tray
• Manufacturer: Integrated Device Technology (Idt)

Specifications of 89HPES24T3G2ZCALG

• Package: 324FCBGA
• Operating Temperature: 0 to 70 °C

System Clock Parameters
AC Timing Characteristics
IDT 89HPES24T3G2 Data Sheet
Values based on systems running at recommended supply voltages and operating temperatures, as shown in Tables 13 and 15.
Refclk
T
T
V
V
V
V
V
T
T
T
T
V
V
Duty Cycle
Rise/Fall Matching
Z
1.
C-RISE
C-FALL
IH
IL
CROSS
CROSS-DELTA
RB
STABLE
PERIOD-AVG
PERIOD-ABS
CC-JITTER
MAX
MIN
C-DC
PCIe Transmit
UI
T
T
MAX-JITTER
T
T
Parameter
The input clock frequency will be either 100 or 125 MHz depending on signal REFCLKM. Frequency is set at 100 MHz in the 19mm package.
TX-EYE
TX-EYE-MEDIAN-to-
TX-RISE
TX- IDLE-MIN
Parameter
FREQ
, T
TX-FALL
Input reference clock frequency range
Rising edge rate
Falling edge rate
Differential input high voltage
Differential input low voltage
Absolute single-ended crossing point
voltage
Variation of V
edges
Ring back voltage margin
Time before V
Average clock period accuracy
Absolute period, including spread-spec-
trum and jitter
Cycle to cycle jitter
Absolute maximum input voltage
Absolute minimum input voltage
Duty cycle
Single ended rising Refclk edge rate ver-
sus falling Refclk edge rate
Clock source output DC impedance
Unit Interval
Minimum Tx Eye Width
Maximum time between the jitter median and maximum
deviation from the median
TX Rise/Fall Time: 20% - 80%
Minimum time in idle
Description
CROSS
RB
is allowed
Description
over all rising clock
Table 10 PCIe AC Timing Characteristics (Part 1 of 2)
Table 9 Input Clock Requirements
Condition
Single-ended
Single-ended
11 of 48
Differential
Differential
Differential
Differential
Differential
Differential
Min
399.88
0.125
0.75
20
1
Gen 1
Typ
400
9.847
Min
+150
+250
-100
-300
1
100
500
-0.3
0.6
0.6
40
40
Max
400.12
0.125
1
Typical
Min
199.94
0.75
0.15
20
20
1
Gen 2
Typ
200
1
10.203
Max
+1.15
+550
+140
+100
2800
125
-150
150
60
60
4
4
Max
September 29, 2010
200.06
1
1
Units
Unit
MHz
V/ns
V/ns
ps
ppm
UI
UI
UI
UI
mV
mV
mV
mV
mV
ps
ns
ps
%
%
Ω
V
V