DS91M047_14 Datasheet, PDF (1/16 Pages) Texas Instruments – 125 MHz Quad M-LVDS Line Driver

DS91M047
www.ti.com
SNLS145D – JUNE 2008 – REVISED NOVEMBER 2009
DS91M047 125 MHz Quad M-LVDS Line Driver
Check for Samples: DS91M047
FEATURES
1
•2 DC - 125 MHz / 250 Mbps Low Jitter, Low
Skew, Low Power Operation
• Conforms to TIA/EIA-899 M-LVDS Standard
• Controlled Transition Times (2 ns typ)
Minimize Reflections
• 8 kV ESD on M-LVDS Pins Protects Adjoining
Components
• Flow-Through Pinout Simplifies PCB Layout
• Industrial Operating Temperature Range
(−40°C to +85°C)
• Available in a Space Saving SOIC-16 Package
APPLICATIONS
• Multidrop / Multipoint Clock and Data
Distribution
• High-Speed, Low Power, Short-Reach
Alternative to TIA/EIA-485/422
• Clock Distribution in AdvancedTCA (ATCA)
and MicroTCA (μTCA, uTCA) Backplanes
DESCRIPTION
The DS91M047 is a high-speed quad M-LVDS line
driver designed for driving clock or data signals to up
to four multipoint networks.
M-LVDS (Multipoint LVDS) is a new family of bus
interface devices based on LVDS technology
specifically designed for multipoint and multidrop
cable and backplane applications. It differs from
standard LVDS in providing increased drive current to
handle double terminations that are required in multi-
point applications. Controlled transition times
minimize reflections that are common in multipoint
configurations due to unterminated stubs.
The DS91M047 accepts LVTTL/LVCMOS input levels
and translates them to M-LVDS signal levels with
transition times of greater than 1 ns. The device
provides the DE and DE inputs that are ANDed
together and control the TRI-STATE outputs. The DE
and DE inputs are common to all four drivers.
The DS91M047 has a flow-through pinout for easy
PCB layout. The DS91M047 provides a new
alternative for high speed multipoint interface
applications. It is packaged in a space saving SOIC-
16 package.
TYPICAL APPLICATION
Line Card in SLOT 1
DS91M047
Line Card in SLOT N-1
M-LVDS Receivers
Line Card in SLOT N
M-LVDS Receivers
R_T
Z₀
R_T
R_T
Z₀
R_T
R_T
Z₀
R_T
R_T
Z₀
R_T
R_T = Z_LOADED
BACKPLANE
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2008–2009, Texas Instruments Incorporated