参数资料
型号: MPC8535EAVTATHA
厂商: Freescale Semiconductor
文件页数: 6/126页
文件大小: 0K
描述: MPU POWERQUICC III 783FCPBGA
标准包装: 1
系列: MPC85xx
处理器类型: 32-位 MPC85xx PowerQUICC III
速度: 1.25GHz
电压: 1V
安装类型: 表面贴装
封装/外壳: 783-BBGA,FCBGA
供应商设备封装: 783-FCPBGA(29x29)
包装: 托盘
Electrical Characteristics
MPC8535E PowerQUICC III Integrated Processor Hardware Specifications, Rev. 5
Freescale Semiconductor
103
2.21.4.3
Differential Receiver (RX) Input Specifications
This table defines the specifications for the differential input at all receivers (RXs). The parameters are specified at the
component pins.
Table 72. Differential Receiver (RX) Input Specifications
Symbol
Parameter
Min
Nom
Max
Units
Comments
UI
Unit Interval
399.8
8
400
400.12
ps
Each UI is 400 ps ± 300 ppm. UI does not
account for Spread Spectrum Clock dictated
variations. See Note 1.
VRX-DIFFp-p
Differential
Peak-to-Peak
Output Voltage
0.175
1.200
V
VRX-DIFFp-p = 2*|VRX-D+ – VRX-D-|
See Note 2.
TRX-EYE
Minimum
Receiver Eye
Width
0.4
UI
The maximum interconnect media and
Transmitter jitter that can be tolerated by the
Receiver can be derived as TRX-MAX-JITTER =
1 - TRX-EYE= 0.6 UI.
See Notes 2 and 3.
TRX-EYE-MEDIAN-to-MAX
-JITTER
Maximum time
between the jitter
median and
maximum
deviation from
the median.
0.3
UI
Jitter is defined as the measurement variation
of the crossing points (VRX-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, 3 and 7.
VRX-CM-ACp
AC Peak
Common Mode
Input Voltage
——
150
mV
VRX-CM-ACp = |VRXD+ – VRXD-|/2 +VRX-CM-DC
VRX-CM-DC = DC(avg) of |VRX-D+ +VRX-D-|/2
See Note 2
RLRX-DIFF
Differential
Return Loss
15
dB
Measured over 50 MHz to 1.25 GHz with the
D+ and D- lines biased at +300 mV and –300
mV, respectively.
See Note 4
RLRX-CM
Common Mode
Return Loss
6
dB
Measured over 50 MHz to 1.25 GHz with the
D+ and D- lines biased at 0 V. See Note 4
ZRX-DIFF-DC
DC Differential
Input Impedance
80
100
120
Ω
RX DC Differential mode impedance. See
Note 5
ZRX-DC
DC Input
Impedance
40
50
60
Ω
Required RX D+ as well as D- DC Impedance
(50 ± 20% tolerance). See Notes 2 and 5.
ZRX-HIGH-IMP-DC
Powered Down
DC Input
Impedance
200 k
Ω
Required RX D+ as well as D– DC
Impedance when the Receiver terminations
do not have power. See Note 6.
VRX-IDLE-DET-DIFFp-p
Electrical Idle
Detect Threshold
65
175
mV
VRX-IDLE-DET-DIFFp-p = 2*|VRX-D+ –VRX-D-|
Measured at the package pins of the Receiver
TRX-IDLE-DET-DIFF-
ENTERTIME
Unexpected
Electrical Idle
Enter Detect
Threshold
Integration Time
10
ms
An unexpected Electrical Idle (VRX-DIFFp-p <
VRX-IDLE-DET-DIFFp-p) must be recognized no
longer than TRX-IDLE-DET-DIFF-ENTERING to
signal an unexpected idle condition.
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