SN65LVDS348_15 Datasheet, PDF (1/28 Pages) Texas Instruments – QUAD HIGH-SPEED DIFFERENTIAL RECEIVERS

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SN65LVDS348 , SN65LVDT348
SN65LVDS352, SN65LVDT352
SLLS523E – FEBRUARY 2002 – REVISED MAY 2004
QUAD HIGH-SPEED DIFFERENTIAL RECEIVERS
FEATURES
• Meets or Exceeds the Requirements of ANSI
TIA/EIA-644A Standard
• Single-Channel Signaling Rates up to
560 Mbps
• -4 V to 5 V Common-Mode Input Voltage
Range
• Flow-Through Architecture
• Active Failsafe Assures a High-level Output
When an Input Signal Is not Present
• SN65LVDS348 Provides a Wide Common-
Mode Range Replacement for the
SN65LVDS048A or the DS90LV048A
APPLICATIONS
• Logic Level Translator
• Point-to-Point Baseband Data Transmission
Over 100-Ω Media
• ECL/PECL-to-LVTTL Conversion
• Wireless Base Stations
• Central Office or PABX Switches
DESCRIPTION
The
SN65LVDS348,
SN65LVDT348,
SN65LVDS352, and SN65LVDT352 are high-speed,
quadruple differential receivers with a wide
common-mode input voltage range. This allows
receipt of TIA/EIA-644 signals with up to 3-V of
ground noise or a variety of differential and
single-ended logic levels. The '348 is in a 16-pin
package to match the industry-standard footprint of
the DS90LV048. The '352 adds two additional V_CC
and GND pins in a 24-pin package to provide higher
data transfer rates with multiple receivers in
operation. All offer a flow-through architecture with all
inputs on one side and outputs on the other to ease
board layout and reduce crosstalk between
receivers. LVDT versions of both integrate a 110-Ω
line termination resistor.
These receivers also provide 3x the standard's
minimum common-mode noise voltage tolerance.
The -4 V to 5 V common-mode range allows usage
in harsh operating environments or accepts LVPECL,
PECL, LVECL, ECL, CMOS, and LVCMOS levels
without level shifting circuitry. See the Application
Information Section for more details on the
ECL/PECL to LVDS interface.
DATA TRANSFER RATE
vs
FREE-AIR TEMPERATURE
550
SN65LVDS352PW
500
450
LVDT Device
Only
Timer
400
SN65LVDS348PW
350
300
250 ^{215 -1 prbs NRZ, VID = 0.4 V}
V_IC = 1.2 V, C_L = 5.5 pF, 40% Open Eye
4 Receivers Switching, Input Jitter < 45 ps
200
-60 -40 -20 0 20 40 60 80 100
T_A - Free-Air Temperature - °C
(One of Four Shown)
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.
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 © 2002–2004, Texas Instruments Incorporated