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| 型號： | MPC8377ECVRAGD |
| 廠商： | Freescale Semiconductor |
| 文件頁數(shù)： | 89/127頁 |
| 文件大?。?/td> | 0K |
| 描述： | MPU POWERQUICC II PRO 689-PBGA |
| 標(biāo)準(zhǔn)包裝： | 27 |
| 系列： | MPC83xx |
| 處理器類型： | 32-位 MPC83xx PowerQUICC II Pro |
| 速度： | 400MHz |
| 電壓： | 1V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 689-BBGA 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 689-TEPBGA II（31x31） |
| 包裝： | 托盤 |
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MPC8377E PowerQUICC II Pro Processor Hardware Specifications, Rev. 8
64
Freescale Semiconductor
15.4.2
Transmitter Compliance Eye Diagrams
The Tx eye diagram in Figure 42 is specified using the passive compliance/test measurement load (see
Figure 44) in place of any real PCI Express interconnect + Rx component. There are two eye diagrams that
must be met for the transmitter. Both diagrams must be aligned in time using the jitter median to locate the
center of the eye diagram. The different eye diagrams differ in voltage depending on whether it is a
transition bit or a de-emphasized bit. The exact reduced voltage level of the de-emphasized bit is always
relative to the transition bit.
Common mode return
loss
Measured over 50 MHz to
1.25 GHz.
RLTX-CM
6—
—
dB
DC differential Tx
impedance
Tx DC differential mode low
impedance
ZTX-DIFF-DC
80
100
120
Ω
—
Transmitter DC
impedance
Required Tx D+ as well as D–
DC impedance during all
states
ZTX-DC
40
—
Ω
—
Lane-to-Lane output
skew
Static skew between any two
transmitter lanes within a
single link
LTX-SKEW
—
500 +
2UI
ps
—
AC coupling capacitor
All transmitters should be AC
coupled. The AC coupling is
required either within the
media or within the
transmitting component itself.
CTX
75
—
200
nF
—
Crosslink random
timeout
This random timeout helps
resolve conflicts in crosslink
configuration by eventually
resulting in only one
downstream and one
upstream port.
Tcrosslink
0—
1
ms
Notes:
1. No test load is necessarily associated with this value.
2. Specified at the measurement point into a timing and voltage compliance test load as shown in Figure 44 and measured
over any 250 consecutive Tx UIs. (Also refer to the transmitter compliance eye diagram shown in Figure 42.)
3. A TTX-EYE = 0.70 UI provides for a total sum of deterministic and random jitter budget of TTX-JITTER-MAX = 0.30 UI for the
transmitter collected over any 250 consecutive Tx UIs. The TTX-EYE-MEDIAN-to-MAX-JITTER median is less than half of the total
Tx jitter budget collected over any 250 consecutive Tx UIs. It should be noted that the median is not the same as the mean.
The jitter median describes the point in time where the number of jitter points on either side is approximately equal as
opposed to the averaged time value.
4. The transmitter input impedance will result in a differential return loss greater than or equal to 12 dB and a common mode
return loss greater than or equal to 6 dB over a frequency range of 50 MHz to 1.25 GHz. This input impedance requirement
applies to all valid input levels. The reference impedance for return loss measurements is 50
Ω to ground for both the D+
and D– line (that is, as measured by a vector network analyzer with 50-
Ω probes, see Figure 44). Note that the series
capacitors, CTX, is optional for the return loss measurement.
5. Measured between 20%–80% at transmitter package pins into a test load as shown in Figure 44 for both VTX-D+ and VTX-D-.
6. See Section 4.3.1.8 of the
PCI Express Base Specifications, Rev 1.0a.
7. See Section 4.2.6.3 of the
PCI Express Base Specifications, Rev 1.0a.
Table 52. Differential Transmitter (Tx) Output Specifications (continued)
Parameter
Conditions
Symbol
Min
Typical
Max
Units
Note
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 355-020-500-202 | CARDEDGE 20POS DL .156 LOPRO BLK |
| MPC8377CVRANG | MPU POWERQUICC II PRO 689-PBGA |
| HFW22R-1STE1LF | CONN FPC/FFC 22POS 1MM R/A SMD |
| 355-020-500-201 | CARDEDGE 20POS DL .156 LOPRO BLK |
| MPC8377CVRAJF | MPU POWERQUICC II PRO 689-PBGA |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MPC8377ECVRAGDA | 功能描述:微處理器 - MPU 8377 PBGA XT PbFr W/ENC RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
| MPC8377ECVRAGFA | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications |
| MPC8377ECVRAGGA | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications |
| MPC8377ECVRAJDA | 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:PowerQUICC? II Pro Processor Hardware Specifications |
| MPC8377ECVRAJF | 功能描述:微處理器 - MPU PBGA W/ ENCR RoHS:否 制造商:Atmel 處理器系列:SAMA5D31 核心:ARM Cortex A5 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:536 MHz 程序存儲(chǔ)器大小:32 KB 數(shù)據(jù) RAM 大小:128 KB 接口類型:CAN, Ethernet, LIN, SPI,TWI, UART, USB 工作電源電壓:1.8 V to 3.3 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-324 |
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