Serial RapidIO
components are included in this requirement. The reference impedance for return loss measurements is
100-Ω resistive for differential return loss and 25-Ω resistive for common mode.
Table 62. Receiver AC Timing Specifications—1.25 GBaud
Range
Characteristic
Symbol
Min
Differential input voltage
Deterministic jitter tolerance
Combined deterministic and random
jitter tolerance
Total jitter tolerance
1
Multiple input skew
Bit error rate
Unit interval
V
IN
J
D
J
DR
J
T
S
MI
BER
UI
200
0.37
0.55
0.65
—
—
800
Max
1600
—
—
—
24
10
–12
800
mVp-p
UI p-p
UI p-p
UI p-p
ns
—
ps
±100 ppm
Measured at receiver
Measured at receiver
Measured at receiver
Measured at receiver
Skew at the receiver input between lanes
of a multilane link
—
Unit
Notes
Note:
1. Total jitter is composed of three components, deterministic jitter, random jitter, and single frequency sinusoidal jitter. The
sinusoidal jitter may have any amplitude and frequency in the unshaded region of
The sinusoidal jitter component
is included to ensure margin for low frequency jitter, wander, noise, crosstalk, and other variable system effects.
Table 63. Receiver AC Timing Specifications—2.5 GBaud
Range
Characteristic
Symbol
Min
Differential input voltage
Deterministic jitter tolerance
Combined deterministic and random
jitter tolerance
Total jitter tolerance
1
Multiple input skew
Bit error rate
Unit interval
V
IN
J
D
J
DR
J
T
S
MI
BER
UI
200
0.37
0.55
0.65
—
—
400
Max
1600
—
—
—
24
10
–12
400
ps
±100 ppm
mVp-p
UI p-p
UI p-p
UI p-p
ns
Measured at receiver
Measured at receiver
Measured at receiver
Measured at receiver
Skew at the receiver input between lanes
of a multilane link
—
Unit
Notes
Note:
1. Total jitter is composed of three components, deterministic jitter, random jitter, and single frequency sinusoidal jitter. The
sinusoidal jitter may have any amplitude and frequency in the unshaded region of
The sinusoidal jitter component
is included to ensure margin for low frequency jitter, wander, noise, crosstalk, and other variable system effects.
MPC8548E PowerQUICC™ III Integrated Processor Hardware Specifications, Rev. 6
Freescale Semiconductor
83
FREESCALE [ FREESCALE SEMICONDUCTOR, INC ]
