PI2EQX4402D_12 Datasheet, PDF (6/7 Pages) Pericom Semiconductor Corporation – 2.5 Gbps x2 Lane Serial PCI Express Repeater/Equalizer with Signal Detect feature

PI2EQX4402D
2.5Gbps x2 Lane Serial PCI Express Repeater / Equalizer
with Signal Detect feature
AC Switching Characteristics for Clock Buffer (V_DD = 1.8 ±0.1V, AV_DD = 1.8 ±0.1V) ⁽³⁾
Symbol
Parameters
Min
T_rise / T_fall Rise and Fall Time (measured between 0.175V to 0.525V) ⁽¹⁾
125
ΔT_rise /
ΔT_fall
Rise and Fall Time Variation
V_HIGH
Voltage High including overshoot
660
V_LOW
Voltage Low including undershoot
-200
V_CROSS
Absolute crossing point voltages
200
ΔV_CROSS Total Variation of Vcross over all edges
T_DC
Duty Cycle (input duty cycle = 50%) ⁽²⁾
45
Max.
525
75
900
550
250
55
Notes:
1. Measurement taken from Single Ended waveform.
2. Measurement taken from Differential waveform.
3. Test configuration is R_S = 33.2Ω, Rp = 49.9Ω, and 2pF.
Units
ps
Notes
1
1
1
1
mV
1
1
%
2
Configuration Test Load Board Termination
CLKBUF
475
1%
Rs
33
5%
Rs
33
5%
Rp
49.9
1%
TLA
TLB
Rp
2pF
49.9
5%
1%
Clock
Clock#
2pF
5%
Figure 2. Configuration test load board termination
Note:
• TLA and TLB are 3” transmission lines.
12-0256
6
PS8875C
07/17/07