參數(shù)資料
型號： MPC8544CVTALGB
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 微控制器/微處理器
英文描述： 32-BIT, 667 MHz, RISC PROCESSOR, PBGA783
封裝： 29 X 29 MM, 1 MM PITCH, LEAD FREE, PLASTIC, BGA-783
文件頁數(shù)： 95/120頁
文件大?。?/td> 1321K
代理商： MPC8544CVTALGB
MPC8544E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 2
76
Freescale Semiconductor
PCI Express
TTX-EYE-MEDIAN-to-
MAX-JITTER
Maximum time
between the jitter
median and maximum
deviation from the
median.
—
0.15
UI
Jitter is defined as the measurement
variation of the crossing points (VTX-DIFFp-p
= 0 V) in relation to a recovered TX UI. A
recovered TX UI is calculated over 3500
consecutive unit intervals of sample data.
Jitter is measured using all edges of the
250 consecutive UI in the center of the
3500 UI used for calculating the TX UI. See
Notes 2 and 3.
TTX-RISE, TTX-FALL
D+/D– TX output
rise/fall time
0.125
—
UI
See Notes 2 and 5.
VTX-CM-ACp
RMS AC peak
common mode output
voltage
——
20
mV
VTX-CM-ACp = RMS(|VTXD+ –
VTXD–|/2 – VTX-CM-DC)
VTX-CM-DC = DC(avg) of |VTX-D+ –
VTX-D–|/2
See Note 2.
VTX-CM-DC-ACTIVE-
IDLE-DELTA
Absolute delta of DC
common mode voltage
during LO and
electrical idle
0—
100
mV
|VTX-CM-DC (during LO) – VTX-CM-Idle-DC
(During Electrical Idle)|<= 100 mV
VTX-CM-DC = DC(avg) of |VTX-D+ –
VTX-D–|/2 [LO]
VTX-CM-Idle-DC = DC(avg) of |VTX-D+ –
VTX-D–|/2 [Electrical Idle]
See Note 2.
VTX-CM-DC-LINE-DELTA Absolute delta of DC
common mode
between D+ and D–
0—
25
mV
|VTX-CM-DC-D+ – VTX-CM-DC-D–| <= 25 mV
VTX-CM-DC-D+ = DC(avg) of |VTX-D+|
VTX-CM-DC-D– = DC(avg) of |VTX-D–|
See Note 2.
VTX-IDLE-DIFFp
Electrical idle
differential peak output
voltage
0—
20
mV
VTX-IDLE-DIFFp = |VTX-IDLE-D+ – VTX-IDLE-D–|
<= 20 mV
See Note 2.
VTX-RCV-DETECT
Amount of voltage
change allowed during
receiver detection
—
600
mV
The total amount of voltage change that a
transmitter can apply to sense whether a
low impedance receiver is present. See
Note 6.
VTX-DC-CM
TX DC common mode
voltage
0
—
3.6
V
The allowed DC common mode voltage
under any conditions. See Note 6.
ITX-SHORT
TX short circuit current
limit
—
90
mA
The total current the transmitter can
provide when shorted to its ground.
TTX-IDLE-MIN
Minimum time spent in
electrical idle
50
—
UI
Minimum time a transmitter must be in
electrical idle utilized by the receiver to
start looking for an electrical idle exit after
successfully receiving an electrical idle
ordered set.
Table 59. Differential Transmitter (TX) Output Specifications (continued)
Symbol
Parameter
Min
Nom
Max
Unit
Comments
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PDF描述
MPC8544VTANGB 32-BIT, 800 MHz, RISC PROCESSOR, PBGA783
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