Revision 1.23 - January 28, 2009
PPC405EX – PowerPC 405EX Embedded Processor
Data Sheet
Table 30. PCI-E Transmitter I/O Specifications
Parameter
Minimum
399.88
800
Maximum
Units
ps
Notes
Unit Interval (UI)
400.12
Differential p-p Tx voltage swing
Low power differential p-p Tx voltage swing
Tx de-emphasis level ratio
-
mV ppd
mV ppd
dB
400
-
-4.0
-
-3.0
Minimum Tx eye width
0.75
UI
Maximum time between the jitter median and maximum
deviation from the median
-
0.125
UI
Transmitter rise and fall time
Maximum Tx PLL bandwidth
Minimum Tx PLL BW for 3dB peaking
Tx AC common mode voltage
0.125
-
UI
-
1.5
-
22
-
MHz
MHz
mV
20
Absolute Delta of DC Common Mode Voltage during L0 and
Electrical Idle.
0
100
mV
Absolute Delta of DC Common Mode Voltage between PCIEnTx
and PCIEnTx
0
0
-
25
20
mV
mV
mV
Electrical Idle Differential Peak Output Voltage
The amount of voltage change allowed during Receiver
Detection
600
Transmitter DC common-mode voltage
Transmitter short-circuit current limit
Minimum time spent in Electrical Idle
0
-
3.6
90
-
V
mA
ns
20
Maximum time to transition to a valid Electrical Idle after sending
an EIOS
-
-
8
8
ns
ns
Maximum transition time to valid differential signaling after
leaving Electrical Idle
Differential return loss
10
6
-
-
dB
dB
Ω
Common mode return loss
DC differential Tx impedance
80
120
70
AMCC Proprietary
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
