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DS90CR218AMTD Datasheet

  • DS90CR218AMTD

  • +3.3V Rising Edge Data Strobe LVDS 21-Bit Channel Link - 85 ...

  • 286.01KB

  • 15頁(yè)

  • NSC

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DS90CR218A/DS90CR217 +3.3V Rising Edge Data Strobe LVDS 21-Bit Channel Link-85 MHz
November 1999
DS90CR218A/DS90CR217
+3.3V Rising Edge Data Strobe LVDS 21-Bit Channel
Link - 85 MHz
General Description
The DS90CR217 transmitter converts 21 bits of CMOS/TTL
data into three LVDS (Low Voltage Differential Signaling)
data streams. A phase-locked transmit clock is transmitted in
parallel with the data streams over a fourth LVDS link. Every
cycle of the transmit clock 21 bits of input data are sampled
and transmitted. The DS90CR218A receiver converts the
three LVDS data streams back into 21 bits of CMOS/TTL
data. At a transmit clock frequency of 85 MHz, 21 bits of TTL
data are transmitted at a rate of 595 Mbps per LVDS data
channel. Using a 85 MHz clock, the data throughput is 1.785
Gbit/s (223 Mbytes/sec).
This chipset is an ideal means to solve EMI and cable size
problems associated with wide, high speed TTL interfaces.
Features
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20 to 85 MHz shift clock support
50% duty cycle on receiver output clock
Best鈥搃n鈥揅lass Set & Hold Times on TxINPUTs
Low power consumption
鹵
1V common mode range (around +1.2V)
Narrow bus reduces cable size and cost
Up to 1.785 Gbps throughput
Up to 223 Megabytes/sec bandwidth
345 mV (typ) swing LVDS devices for low EMI
PLL requires no external components
Rising edge data strobe
Compatible with TIA/EIA-644 LVDS standard
Low profile 48-lead TSSOP package
Block Diagrams
DS90CR217
DS90CR218A
DS101080-1
DS101080-27
Order Number DS90CR217MTD
See NS Package Number MTD48
Order Number DS90CR218AMTD
See NS Package Number MTD48
TRI-STATE
廬
is a registered trademark of National Semiconductor Corporation.
漏 1999 National Semiconductor Corporation
DS101080
www.national.com

DS90CR218AMTD 產(chǎn)品屬性

  • National Semiconductor (TI)

  • 21

  • 3

  • 1785 Mbps

  • 3.3 V

  • 1890 mW

  • + 70 C

  • TSSOP-48

  • Tube

  • - 10 C

  • SMD/SMT

  • 3.6 V

  • 3 V

  • LVDS

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