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PDF DS90CR288MTD Data sheet ( Hoja de datos )
| Número de pieza | DS90CR288MTD | |
| Descripción | +3.3V Rising Edge Data Strobe LVDS 28-Bit Channel Link Receiver - 75 MHz | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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May 2002
DS90CR288
+3.3V Rising Edge Data Strobe LVDS 28-Bit Channel
Link Receiver - 75 MHz
General Description
The DS90CR287 (see DS90CR287/288A datasheet) trans-
mitter converts 28 bits of CMOS/TTL data into four LVDS
(Low Voltage Differential Signaling) data streams. A phase-
locked transmit clock is transmitted in parallel with the data
streams over a fifth LVDS link. Every cycle of the transmit
clock 28 bits of input data are sampled and transmitted. The
DS90CR288 receiver converts the four LVDS data streams
back into 28 bits of CMOS/TTL data. At a transmit clock
frequency of 75 MHz, 28 bits of TTL data are transmitted at
a rate of 525 Mbps per LVDS data channel. Using a 75 MHz
clock, the data throughput is 2.10 Gbit/s (262.5 Mbytes/sec).
Complete specifications for the DS90CR287 are located in
the DS90CR287/DS90CR288A datasheet. The DS90CR287
supports clock rates from 20 to 85 MHz.
This chipset is an ideal means to solve EMI and cable size
problems associated with wide, high-speed TTL interfaces.
Features
n 20 to 75 MHz shift clock support
n 50% duty cycle on receiver output clock
n Best-in-Class Set & Hold Times on TxINPUTs and
RxOUTPUTs
n Low power consumption
n Tx + Rx Powerdown mode <400µW (max)
n ±1V common-mode range (around +1.2V)
n Narrow bus reduces cable size and cost
n Up to 2.10 Gbps throughput
n Up to 262.5 Mbytes/sec bandwidth
n 345 mV (typ) swing LVDS devices for low EMI
n PLL requires no external components
n Rising edge data strobe
n Compatible with TIA/EIA-644 LVDS standard
n Low profile 56-lead TSSOP package
Block Diagrams
DS90CR287
DS90CR288
Order Number DS90CR287MTD
See NS Package Number MTD56
(See DS90CR287/DS90CR288A datasheet)
DS100872-1
Order Number DS90CR288MTD
See NS Package Number MTD56
DS100872-27
© 2002 National Semiconductor Corporation DS100872
www.national.com
1 page  
AC Timing Diagrams (Continued)
DS100872-10
FIGURE 3. DS90CR288 (Receiver) Setup/Hold and High/Low Times
DS100872-12
FIGURE 4. DS90CR288 (Receiver) Clock In to Clock Out Delay
DS100872-14
FIGURE 5. DS90CR288 (Receiver) Phase Lock Loop Set Time
5 www.national.com
5 Page 
Applications Information (Continued)
FIGURE 12. Single-Ended and Differential Waveforms
DS100872-26
11 www.national.com
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet DS90CR288MTD.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| DS90CR288MTD | +3.3V Rising Edge Data Strobe LVDS 28-Bit Channel Link Receiver - 75 MHz | National Semiconductor |
| DS90CR288MTD | +3.3V Rising Edge Data Strobe LVDS 28-Bit Channel Link Receiver - 75 MHz | National Semiconductor |
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