MPC8548E Freescale, MPC8548E Datasheet - Page 81

• Manufacturer Part Number: MPC8548E
• Description: Integrated Processor
• Manufacturer: Freescale

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17.7
LP-serial receiver electrical and timing specifications are stated in the text and tables of this section.
Receiver input impedance shall result in a differential return loss better that 10 dB and a common mode
return loss better than 6 dB from 100 MHz to (0.8) × (baud frequency). This includes contributions from
on-chip circuitry, the chip package, and any off-chip components related to the receiver. AC coupling
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.
Freescale Semiconductor
Receiver Specifications
1.25 GBaud short range
1.25 GBaud long range
2.5 GBaud short range
2.5 GBaud long range
3.125 GBaud short range
3.125 GBaud long range
–V
–V
V
V
DIFF
DIFF
DIFF
DIFF
MPC8548E PowerQUICC™ III Integrated Processor Hardware Specifications, Rev. 4
max
max
Transmitter Type
min
min
0
Table 60. Transmitter Differential Output Eye Diagram Parameters
0
Figure 52. Transmitter Output Compliance Mask
A
V
DIFF
min (mV)
250
400
250
400
250
400
B
Time in UI
V
DIFF
max (mV)
500
800
500
800
500
800
1-B
A (UI)
0.175
0.175
0.175
0.175
0.175
0.175
1-A
B (UI)
0.39
0.39
0.39
0.39
0.39
0.39
Serial RapidIO
1
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