參數(shù)資料
型號： MPC8378ECVRAGGA
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 400 MHz, MICROPROCESSOR, PBGA689
封裝： 31 X 31 MM, 2.46 MM HEIGHT, 1 MM PITCH, LEAD FREE, PLASTIC, BGA-689
文件頁數(shù)： 48/125頁
文件大?。?/td> 894K
代理商： MPC8378ECVRAGGA
MPC8378E PowerQUICC II Pro Processor Hardware Specifications, Rev. 5
Freescale Semiconductor
29
8.3.1.1
SGMII Transmit AC Timing Specifications
This table provides the SGMII transmit AC timing targets. Source synchronous clocking is not supported.
8.3.1.2
SGMII Receive AC Timing Specifications
This table provides the SGMII receive AC timing specifications. Source synchronous clocking is not supported; the clock is
recovered from the data.
Table 28. SGMII Transmit AC Timing Specifications
At recommended operating conditions with XVDD_SRDS = 1.0 V ± 5%.
Parameter
Symbol
Min
Typical
Max
Unit
Note
Deterministic Jitter
JD
—
0.17
UIp-p
—
Total Jitter
JT
—
0.35
UIp-p
—
Unit Interval
UI
799.92
800
800.08
ps
1
VOD fall time (80%–20%)
tfall
50
—
120
ps
—
VOD rise time (20%–80%)
trise
50
—
120
ps
—
Note:
1. Each UI is 800 ps ± 100 ppm.
Table 29. SGMII Receive AC Timing Specifications
At recommended operating conditions with XVDD_SRDS = 1.0 V ± 5%.
Parameter
Symbol
Min
Typical
Max
Unit
Note
Deterministic jitter tolerance
JD
0.37
—
UIp-p
1
Combined deterministic and random jitter tolerance
JDR
0.55
—
UIp-p
1
Sinusoidal jitter tolerance
JSIN
0.1
—
UIp-p
1
Total jitter tolerance
JT
0.65
—
UIp-p
1
Bit error ratio
BER
—
10-12
——
Unit interval
UI
799.92
800
800.08
ps
2
AC-coupling capacitor
CTX
5—
200
nF
3
Notes:
1. Measured at the receiver.
2. Each UI is 800 ps ± 100 ppm.
3. The external AC coupling capacitor is required. It’s recommended to be placed near the device transmitter outputs.
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