ds90cf582 National Semiconductor Corporation, ds90cf582 Datasheet

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ds90cf582

Manufacturer Part Number
ds90cf582
Description
Lvds 24-bit Color Flat Panel Display Fpd Link
Manufacturer
National Semiconductor Corporation
Datasheet

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Part Number:
ds90cf582MTDX
Manufacturer:
NS/国半
Quantity:
20 000
C 1996 National Semiconductor Corporation
DS90CF581 DS90CF582
LVDS 24-Bit Color Flat Panel Display (FPD) Link
General Description
The DS90CF581 transmitter 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 DS90CF582 receiver converts the
LVDS data streams back into 28 bits of CMOS TTL data At
a transmit clock frequency of 40 MHz 24 bits of RGB data
and 4 bits of LCD timing and control data (FPLINE
FPFRAME DRDY CNTL) are transmitted at a rate of
280 Mbps per LVDS data channel Using a 40 MHz clock
the data throughput is 140 Megabytes per second The
chipset is an ideal means to solve EMI and cable size prob-
lems associated with wide high speed TTL interfaces
Block Diagrams
TRI-STATE is a registered trademark of National Semiconductor Corporation
See NS Package Number MTD56
Order Number DS90CF581MTD
TL F 12486
DS90CF581
Application
Features
Y
Y
Y
Y
Y
Y
Y
Y
Y
Up to 140 Megabyte sec Bandwidth
Narrow bus reduces cable size
345 mV swing LVDS devices for low EMI
Low power CMOS design
Power-down mode
PLL requires no external components
Low profile 56-lead TSSOP package
Falling edge data strobe
Compatible with TIA EIA-644 LVDS standard
RRD-B30M66 Printed in U S A
See NS Package Number MTD56
Order Number DS90CF582MTD
DS90CF582
TL F 12486 – 1
TL F 12486 – 2
April 1996

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ds90cf582 Summary of contents

Page 1

... LVDS link Every cycle of the transmit clock 28 bits of input data are sampled and transmitted The DS90CF582 receiver converts the LVDS data streams back into 28 bits of CMOS TTL data At a transmit clock frequency of 40 MHz 24 bits of RGB data ...

Page 2

... Connection Diagrams DS90CF581 http www national com DS90CF582 TL F 12486 – 12486 – 4 ...

Page 3

... OUT 63W DS90CF582 1 61W above above 25 C Min Nom Max Units ) ...

Page 4

Electrical Characteristics Over recommended operating supply and temperature ranges unless otherwise specified Symbol Parameter TRANSMITTER SUPPLY CURRENT I Transmitter Supply Current CCTW Worst Case I Transmitter Supply Current CCTG 16 Grayscale I Transmitter Supply Current CCTZ Power Down RECEIVER SUPPLY ...

Page 5

Switching Characteristics Over recommended operating supply and temperature ranges unless otherwise specified (Continued) Symbol Parameter RCOH RxCLK OUT High Time (Figure 8) RxCLK OUT Low Time (Figure 8) RCOL RxOUT Setup to RxCLK OUT (Figure 8) RSRC RxOUT Hold to ...

Page 6

AC Timing Diagrams Note 1 The worst case test pattern produces a maximum toggling of digital circuits LVDS I O and CMOS TTL I O Note 2 The 16 grayscale test pattern tests device power consumption for a ‘‘typical’’ LCD ...

Page 7

... TL F 12486 – 8 FIGURE 3 DS90CF581 (Transmitter) LVDS Output Load and Transition Timing TL F 12486 – 10 FIGURE 4 DS90CF582 (Receiver) CMOS TTL Output Load and Transition Timing FIGURE 5 DS90CF581 (Transmitter) Input Clock Transition Time FIGURE 6 DS90CF581 (Transmitter) Channel-to-Channel Skew and Pulse Width ...

Page 8

... FIGURE 7 DS90CF581 (Transmitter) Setup Hold and High Low Times FIGURE 8 DS90CF582 (Receiver) Setup Hold and High Low Times FIGURE 9 DS90CF581 (Transmitter) Clock In to Clock Out Delay FIGURE 10 DS90CF582 (Receiver) Clock In to Clock Out Delay http www national com TL F 12486 – 12486 – ...

Page 9

... AC Timing Diagrams (Continued) FIGURE 11 DS90CF581 (Transmitter) Phase Lock Loop Set Time FIGURE 12 DS90CF582 (Receiver) Phase Lock Loop Set Time 12486 – 12486 – 21 http www national com ...

Page 10

AC Timing Diagrams (Continued) FIGURE 13 Seven Bits of LVDS in One Block Cycle FIGURE 14 28 Parallel TTL Data Inputs Mapped to LVDS Outputs (DS90CF581) http www national com 12486 – 12486 – ...

Page 11

... PLL GND I 2 Ground pins for PLL LVDS Power supply pin for LVDS outputs CC LVDS GND I 3 Ground pins for LVDS outputs DS90CF582 Pin Description FPD Link Receiver Pin Name RxIN I 4 Positive LVDS differential data inputs b RxIN I 4 ...

Page 12

... Physical Dimensions inches (millimeters) unless otherwise noted 56-Lead Molded Thin Shrink Small Outline Package JEDEC Order Number DS90CF581MTD or DS90CF582MTD LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL ...

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