DS92001 Datasheet, PDF (1/17 Pages) National Semiconductor (TI) – 3.3V B/LVDS-BLVDS Buffer

DS92001
www.ti.com
SNLS147F – JUNE 2002 – REVISED APRIL 2013
DS92001 3.3V B/LVDS-BLVDS Buffer
Check for Samples: DS92001
FEATURES
1
•2 Single +3.3 V Supply
• Receiver Inputs Accept LVDS/CML/LVPECL
Signals
• TRI-STATE Outputs
• Receiver Input Threshold < ±100 mV
• Fast Propagation Delay of 1.4 ns (typ)
• Low Jitter 400 Mbps Fully Differential Data
Path
• Compatible with BLVDS 10-bit SerDes (40MHz)
• Compatible with ANSI/TIA/EIA-644-A LVDS
Standard
• Available in SOIC and Space Saving WSON
Package
• Industrial Temperature Range
DESCRIPTION
The DS92001 B/LVDS-BLVDS Buffer takes a BLVDS
input signal and provides a BLVDS output signal. In
many large systems, signals are distributed across
backplanes. One of the limiting factors for system
speed is the "stub length" or the distance between
the transmission line and the unterminated receivers
on individual cards. Although it is generally
recognized that this distance should be as short as
possible to maximize system performance, real-world
packaging concerns often make it difficult to make the
stubs as short as the designer would like.
The DS92001 has edge transitions optimized for
multidrop backplanes where the switching frequency
is in the 200 MHz range or less. The output edge rate
is critical in some systems where long stubs may be
present, and utilizing a slow transition allows for
longer stub lengths.
The DS92001, available in the WSON package, will
allow the receiver inputs to be placed very close to
the main transmission line, thus improving system
performance.
A wide input dynamic range allows the DS92001 to
receive differential signals from LVPECL, CML as
well as LVDS sources. This will allow the device to
also fill the role of an LVPECL-BLVDS or CML-
BLVDS translator.
Connection and Block Diagrams
GND
1
IN-
2
IN+
3
N/C
4
8
EN
7
OUT-
6
OUT+
5
VCC
Figure 1. SOIC Package Number D0008A
Top View
IN-
IN+
GND 1
IN- 2
IN+ 3
N/C 4
DAP
GND
8 EN
7 OUT-
6 OUT+
5 VCC
Figure 2. WSON Package Number NGK0008A
Top View
OUT-
OUT+
EN
1
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.
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 © 2002–2013, Texas Instruments Incorporated