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| 型號： | SY87724LEHI |
| 廠商： | MICREL INC |
| 元件分類： | 編、解碼器及復(fù)用、解復(fù)用 |
| 英文描述： | MULTIPLEXER, PQFP80 |
| 封裝： | 14 X 14 MM, 1 MM HEIGHT, TQFP-80 |
| 文件頁數(shù)： | 13/14頁 |
| 文件大?。?/td> | 572K |
| 代理商： | SY87724LEHI |
Micrel, Inc.
SY87724LE
January 2008
8
M9999-012508-A
hbwhelp@micrel.com or (408) 955-1690
Wide MUX
The more typical case will be to convert 8 or 10 bit wide
parallel data words into a serial bit stream. Because the
worst case parallel input rate is on the order of 250 to 340
Mega-transfers per second, single-ended parallel inputs
are used.
This scenario is much like the narrow MUX case, except
now MPINCK+ clocks slower, for 8 or 10 bit parallel words.
Figure 4. Wide MUX
Note that the input data indication is now single ended,
and that completely different input pins are used, as
compared to the 4 or 5 bit case.
The following table summarizes the available bit widths.
The right column shows the parallel input bits, such as
they will appear in the serial output stream.
Width
Sequence
4
MPF0±, MPF1±, MPF2±, MPF3±
5
MPF0±, MPF1±, MPF2±, MPF3±, MPF4±
8
MP5, MP6, MP7, MP8, MP0, MP1, MP2, MP3
10
MP5, MP6, MP7, MP8, MP9, MP0, MP1, MP2, MP3,
MP4
Table 4. Output Pins for Different Width MUX
Loopback
To ease system design, the SY87724L MDM has the
capability to loop parallel data in, through the MUX, into
the demux, and back to parallel data out. This permits
system check-out through to the individual MDM device.
Note that, for a full check-out, some form of loopback
further down the serial stream is required.
Loopback is incorporated into MDM by modifying the serial
clock, data, and sync inputs to the demux stage.
During loopback, the source of serial information for the
demux is changed. The MSOUT±, MTXCLK± and
MSYNOUT± are internally muxed to the DSIN±, DCKIN±,
and DFMIN± nodes of the demux section. The
MSYNOUT± signal has the same characteristics as the
DFMIN logic expects.
This exercises the internal data path, both MUX and
demux, for MDM, and also the control logic. The parallel
data presented to the parallel inputs will appear, some
small but unspecified time later, at the parallel outputs.
Figure 5. Loopback Function
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SY87724LH1 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:3.3V AnyRate MUX/DEMUX Up to 2.7GHz |
| SY87724LHEI | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:3.3V AnyRate MUX/DEMUX Up to 2.7GHz |
| SY87724LHEY | 功能描述:計時器和支持產(chǎn)品 3.3V 2.8Gbps AnyRate Mux/Demux (Lead Free/I Temp/80 Pin EP-TQFP) RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel |
| SY87724LHG | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:3.3V AnyRate MUX/DEMUX Up to 2.7GHz |
| SY87724LHI | 功能描述:IC MUX/DEMUX 3X1 80TQFP RoHS:否 類別:集成電路 (IC) >> 接口 - 模擬開關(guān)，多路復(fù)用器，多路分解器 系列:AnyRate® 標(biāo)準(zhǔn)包裝:48 系列:- 功能:開關(guān) 電路:4 x SPST - NO 導(dǎo)通狀態(tài)電阻:100 歐姆 電壓電源:單/雙電源 電壓 - 電源，單路/雙路(±):2 V ~ 12 V，±2 V ~ 6 V 電流 - 電源:50nA 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:16-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:管件 |
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