Datasheet


 
SLLS268D − MARCH 1997 − REVISED JULY 2006
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POST OFFICE BOX 655303 DALLAS, TEXAS 75265
D 3:21 Data Channel Expansion at up to
178.5 Mbytes/s Throughput
D Suited for SVGA, XGA, or SXGA Display
Data Transmission From Controller to
Display With Very Low EMI
D Three Data Channels and Clock
Low-Voltage Differential Channels In and
21 Data and Clock Low-Voltage TTL
Channels Out
D Operates From a Single 3.3-V Supply and
250 mW (Typ)
D 5-V Tolerant SHTDN Input
D ESD Protection Exceeds 4 kV on Bus Pins
D Packaged in Thin Shrink Small-Outline
Package (TSSOP) With 20-Mil Terminal
Pitch
D Consumes Less Than 1 mW When Disabled
D Wide Phase-Lock Input Frequency Range
31 MHz to 68 MHz
D No External Components Required for PLL
D Open-Circuit Receiver Fail-Safe Design
D Inputs Meet or Exceed the Requirements of
ANSI EIA/TIA-644 Standard
D Improved Replacement for the Nationalt
DS90C562
description
The SN75LVDS86 FlatLink receiver contains three serial-in 7-bit parallel-out shift registers, a 7× clock
synthesizer, and four low-voltage differential signaling (LVDS) line receivers in a single integrated circuit. These
functions allow receipt of synchronous data from a compatible transmitter, such as the SN75LVDS81, ’83, ’84,
or ’85, over four balanced-pair conductors, and expansion to 21 bits of single-ended low-voltage TTL (LVTTL)
synchronous data at a lower transfer rate.
When receiving, the high-speed LVDS data is received and loaded into registers at seven times (7×) the LVDS
input clock (CLKIN) rate. The data is then unloaded to a 21-bit-wide LVTTL parallel bus at the CLKIN rate. A
phase-locked loop (PLL) clock synthesizer circuit generates a 7× clock for internal clocking and an output clock
for the expanded data. The SN75LVDS86 presents valid data on the falling edge of the output clock (CLKOUT).
The SN75LVDS86 requires only four line-termination resistors for the differential inputs and little or no control.
The data bus appears the same at the input to the transmitter and output of the receiver with the data
transmission transparent to the user. The only possible user intervention is the use of the shutdown/clear
(SHTDN
) active-low input to inhibit the clock and shut off the LVDS receivers for lower power consumption. A
low level on this signal clears all internal registers to a low level.
Copyright 2006, Texas Instruments Incorporated
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
FlatLink is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.
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D17
D18
GND
D19
D20
NC
LVDSGND
A0M
A0P
A1M
A1P
LVDSV
CC
LVDSGND
A2M
A2P
CLKINM
CLKINP
LVDSGND
PLLGND
PLLV
CC
PLLGND
SHTDN
CLKOUT
D0
V
CC
D16
D15
D14
GND
D13
V
CC
D12
D11
D10
GND
D9
V
CC
D8
D7
D6
GND
D5
D4
D3
V
CC
D2
D1
GND
DGG PACKAGE
(TOP VIEW)
NC − Not Connected

Summary of content (17 pages)