參數(shù)資料
型號(hào)： PC8641MSH1333JB
廠商： E2V TECHNOLOGIES PLC
元件分類： 微控制器/微處理器
英文描述： MICROPROCESSOR, CBGA1023
封裝： 33 X 33 MM, 2.72 MM HEIGHT, 1 MM PITCH, ROHS COMPLIANT, CERAMIC, FC-BGA-1023
文件頁數(shù)： 64/111頁
文件大?。?/td> 1660K
代理商： PC8641MSH1333JB
56
0893C–HIREL–01/10
PC8641 and PC8641D [Preliminary]
e2v semiconductors SAS 2010
15.4.1
Differential Transmitter (TX) Output
Table 15-2 defines the specifications for the differential output at all transmitters (TXs). The parameters
are specified at the component pins.
Table 15-2.
Differential Transmitter (TX) Output Specifications
Symbol
Parameter
Min
Nom
Max
Units
Comments
UI
Unit Interval
399.88
400
400.12
ps
Each UI is 400 ps ± 300 ppm. UI does not account for
Spread Spectrum Clock dictated variations. See Note (1).
V
TX-DIFFp-p
Differential Peak-to-Peak
Output Voltage
0.8
1.2
V
TX-DIFFp-p = 2*|VTX-D+- VTX-D-| See Note
V
TX-DE-RATIO
De- Emphasized
Differential Output
Voltage (Ratio)
-3.0
-3.5
-4.0
dB
Ratio of the V
TX-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
T
TX-EYE
Minimum TX Eye Width
0.70
UI
The maximum Transmitter jitter can be derived as T
TX-MAX-
JITTER = 1 - TTX-EYE = 0.3 UI. See Notes
(2) and (3).
T
TX-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 (V
TX-DIFFp-p = 0V) 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
T
TX-RISE, TTX-FALL
D+/D- TX Output
Rise/Fall Time
0.125
UI
See Notes
V
TX-CM-ACp
RMS AC Peak Common
Mode Output Voltage
20
mV
V
TX-CM-ACp = RMS(|VTXD+- VTXD-|/2 -VTX-CM-DC)
V
TX-CM-DC = DC(avg) of |VTX-D+- VTX-D-|/2
See Note
V
TX-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
V
TX-CM-DC = DC(avg) of |VTX-D+- VTX-D-|/2 [LO]
V
TX-CM-Idle-DC = DC(avg) of |VTX-D+ - VTX-D-|/2 [Electrical Idle]
See Note (2).
V
TX-CM-DC-LINE-
DELTA
Absolute Delta of DC
Common Mode between
D+ and D–
025
mV
|
VTX-CM-DC-D+ - VTX-CM-DC-D-| <= 25 mV
V
TX-CM-DC-D+ = DC(avg) of |VTX-D+|
V
TX-CM-DC-D- = DC(avg) of |VTX-D-|
See Note (2).
V
TX-IDLE-DIFFp
Electrical Idle differential
Peak Output Voltage
020
mV
V
TX-IDLE-DIFFp = |VTX-IDLE-D+ -VTX-IDLE-D-| <= 20 mV
See Note (2).
V
TX-RCV-DETECT
The 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 (5).
V
TX-DC-CM
The TX DC Common
Mode Voltage
03.6
V
The allowed DC Common Mode voltage under any
conditions. See Note (5).
I
TX-SHORT
TX Short Circuit Current
Limit
90
mA
The total current the Transmitter can provide when shorted
to its ground.
T
TX-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.
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