DS90CR282MTD ,28-Bit Channel Link [Life-time buy]Featuresmitted at a rate of 280 Mbps per LVDS data channel. Usinga 40 MHz clock, the data throughpu ..
DS90CR282MTDX ,28-Bit Channel Link [Life-time buy]General Descriptionquired cable width, which provides a system cost savings,The DS90CR281 transmitt ..
DS90CR283MTD ,28-Bit Channel-LinkBlock DiagramsDS90CR283 DS90CR284DS012889-27 DS012889-1Order Number DS90CR283MTD Order Number DS90C ..
DS90CR284MTD ,28-Bit Channel-LinkFeaturesLVDS data streams back into 28 bits of CMOS/TTL data. Ata transmit clock frequency of 66 MH ..
DS90CR285MTD ,+3.3V Rising Edge Data Strobe LVDS 28-Bit ChannelGeneral Descriptionsignal combinations. For example, seven 4-bit nibbles orThe DS90CR285 transmitte ..
DS90CR286AMTD ,+3.3V Rising Edge Data Strobe LVDS Receiver 28-Bit Channel Link-66 MHzElectrical CharacteristicsOver recommended operating supply and temperature ranges unless otherwise ..
DS90CR281MTD-DS90CR282MTD-DS90CR282MTDX
28-Bit Channel Link [Life-time buy]
DS90CR281/DS90CR282
28-Bit Channel Link
General DescriptionThe DS90CR281 transmitter converts28bitsof CMOS/TTL
dataintofour LVDS(LowVoltage Differential Signaling) data
streams.A phase-locked transmit clockis transmittedinpar-
allelwith thedata streamsoverafifth LVDS link.Every cyclethe transmit clock28bitsof input dataare sampledand
transmitted. The DS90CR282 receiver convertsthe LVDS
data streams back into28 bitsof CMOS/TTL data.At atrans-
mit clock frequency of40 MHz,28 bitsofTTL dataare trans-
mittedatarateof280 Mbpsper LVDS data channel. Using40 MHz clock, the data throughputis 1.12 Gbit/s
(140 Mbytes/s).
The multiplexingofthe data lines providesa substantial
cable reduction. Long distance parallel single-ended buses
typically requirea ground wireper active signal (and have
verylimited noiserejectioncapability).Thus,fora 28-bit wide
databusand one clock,upto58 conductorsare required.
Withthe Channel Link chipsetasfewas11 conductors(4
data pairs,1 clockpairanda minimumofone
ground)are needed. This providesa 80% reductioninre-
quired cable width, which providesa system cost savings,
reduces connector physical size and cost, and reduces
shielding requirementsduetothe cables’ smaller form fac-
tor.
The28 CMOS/TTL inputs can supporta varietyof signal
combinations.For example,7 4-bit nibblesor3 9-bit (byte+
parity)and1 control.
Features Narrowbus reduces cable sizeand cost ±1V common mode range (ground shifting) 290mV swing LVDS data transmission 1.12 Gbit/s data throughput Low swing differential current mode drivers reduce EMI Rising edge data strobe Power down mode Offeredinlow profile 56-lead TSSOP package
Block DiagramsTRI-STATE®isa registeredtrademark ofNationalSemiconductorCorporation.
DS90CR281DS012638-27
Order Number DS90CR281MTD
SeeNS Package Number MTD56
DS90CR282DS012638-1
Order Number DS90CR282MTD
SeeNS Package Number MTD56July 1997
DS90CR281/DS90CR282
28-Bit
Channel
Link 1998 National Semiconductor Corporation DS012638
