參數(shù)資料
型號： MC8640VU1067NC
廠商： Freescale Semiconductor
文件頁數(shù)： 97/130頁
文件大?。?/td> 0K
描述： MPU DUAL E600 994-FCCBGA
標(biāo)準(zhǔn)包裝： 1
系列： MPC86xx
處理器類型： 32-位 MPC86xx PowerPC
速度： 1.067GHz
電壓： 0.95V
安裝類型： 表面貼裝
封裝/外殼： 994-BCBGA，F(xiàn)CCBGA
供應(yīng)商設(shè)備封裝： 994-FCCBGA（33x33）
包裝： 托盤
MPC8640 and MPC8640D Integrated Host Processor Hardware Specifications, Rev. 3
Freescale Semiconductor
69
PCI Express
De- Emphasized
Differential
Output Voltage
(Ratio)
VTX-DE-RATIO
–3.0
–3.5
–4.0
dB
Ratio of the VTX-DIFFp-p of the second and following bits
after a transition divided by the VTX-DIFFp-p of the first
bit after a transition. See Note 2.
Minimum TX Eye
Width
TTX-EYE
0.70
—
UI
The maximum Transmitter jitter can be derived as
TTX-MAX-JITTER = 1 – TTX-EYE = 0.3 UI.
See Notes 2 and 3.
Maximum time
between the jitter
median and
maximum
deviation from
the median.
TTX-EYE-MEDIAN-to-
MAX-JITTER
—
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.
D+/D– Tx Output
Rise/Fall Time
TTX-RISE, TTX-FALL
0.125
—
UI
See Notes 2 and 5
RMS AC Peak
Common Mode
Output Voltage
VTX-CM-ACp
——
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
Absolute Delta of
DC Common
Mode Voltage
During L0 and
Electrical Idle
VTX-CM-DC-ACTIVE-
IDLE-DELTA
0
—
100
mV
|VTX-CM-DC (during L0) – VTX-CM-Idle-DC (During Electrical
Idle)| ≤ 100 mV
VTX-CM-DC = DC(avg) of |VTX-D+ + VTX-D-|/2 [L0]
VTX-CM-Idle-DC = DC(avg) of |VTX-D+ + VTX-D–|/2
[Electrical Idle]
See Note 2.
Absolute Delta of
DC Common
Mode between
D+ and D–
VTX-CM-DC-LINE-DELTA
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.
Electrical Idle
differential Peak
Output Voltage
VTX-IDLE-DIFFp
0—
20
mV
VTX-IDLE-DIFFp = |VTX-IDLE-D+ -VTX-IDLE-D–| ≤ 20 mV
See Note 2.
The amount of
voltage change
allowed during
Receiver
Detection
VTX-RCV-DETECT
—
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.
The Tx DC
Common Mode
Voltage
VTX-DC-CM
0
—
3.6
V
The allowed DC common mode voltage under any
conditions. See Note 6.
Tx Short Circuit
Current Limit
ITX-SHORT
—
90
mA
The total current the transmitter can provide when
shorted to its ground
Minimum time
spent in
electrical idle
TTX-IDLE-MIN
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 49. Differential Transmitter Output Specifications (continued)
Parameter
Symbol
Min
Nom
Max
Units
Notes
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