參數(shù)資料
型號: MC8641DHX1500NC
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: MICROPROCESSOR, CBGA1023
封裝: 33 X 33 MM, ROHS COMPLIANT, CERAMIC, BGA-1023
文件頁數(shù): 126/140頁
文件大?。?/td> 1484K
代理商: MC8641DHX1500NC
MPC8641 and MPC8641D Integrated Host Processor Hardware Specifications, Rev. 0
86
Freescale Semiconductor
Serial RapidIO
15.7
Receiver Specifications
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 Ohm resistive for differential return loss and 25 Ohm resistive for common mode.
Table 58. Transmitter Differential Output Eye Diagram Parameters
Transmitter Type
VDIFFmin
(mV)
VDIFFmax
(mV)
A (UI)
B (UI)
1.25 GBaud short range
250
500
0.175
0.39
1.25 GBaud long range
400
800
0.175
0.39
2.5 GBaud short range
250
500
0.175
0.39
2.5 GBaud long range
400
800
0.175
0.39
3.125 GBaud short range
250
500
0.175
0.39
3.125 GBaud long range
400
800
0.175
0.39
Table 59. Receiver AC Timing Specifications—1.25 GBaud
Characteristic
Symbol
Range
Unit
Notes
Min
Max
Differential Input Voltage
VIN
200
1600
mV p-p
Measured at receiver
Deterministic Jitter Tolerance
JD
0.37
UI p-p
Measured at receiver
Combined Deterministic and Random
Jitter Tolerance
JDR
0.55
UI p-p
Measured at receiver
Total Jitter Tolerance1
JT
0.65
UI p-p
Measured at receiver
Multiple Input Skew
SMI
24
ns
Skew at the receiver input
between lanes of a multilane
link
Bit Error Rate
BER
10–12
Unit Interval
UI
800
ps
+/– 100 ppm
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 Figure 55. The sinusoidal jitter component
is included to ensure margin for low frequency jitter, wander, noise, crosstalk and other variable system effects.
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