MAX9178 Datasheet, PDF (1/14 Pages) Maxim Integrated Products – Quad LVDS Line Driver with High-ESD Tolerance and Flow-Through Pinout

19-2856; Rev 0; 4/03
Quad LVDS Line Driver with High-ESD
Tolerance and Flow-Through Pinout
General Description
The MAX9178 quad low-voltage differential signaling
(LVDS) line driver with high-ESD tolerance is ideal for
applications requiring high data rates and low power
with reduced noise. The MAX9178 is guaranteed to
transmit data at speeds up to 400Mbps (200MHz) over
controlled impedance of media of approximately 100Ω.
The transmission media can be printed circuit (PC)
board traces, backplanes, or cables.
The MAX9178 accepts four LVTTL/LVCMOS inputs and
translates them to LVDS output signals. All inputs toler-
ate overshoot of V_CC +1V and undershoot of -1V. The
EN and EN inputs are ANDed together and control the
high-impedance outputs. When the device is disabled,
power drops to ultra-low 12.6mW (typ). Outputs con-
form to the ANSI TIA/EIA-644 LVDS standard.
The MAX9178 operates from a single +3.3V supply,
and is available in a 16-pin TSSOP and 16-pin thin QFN
package with exposed pad. The MAX9178 is specified
for operation from -40°C to +85°C.
Applications
Digital Copiers
Laser Printers
Cell Phone Base
Stations
Add/Drop Muxes
Digital Cross-Connects
DSLAMs
Network
Switches/Routers
Backplane
Interconnect
Clock Distribution
Features
o Flow-Through Pinout
Simplifies PC Board Layout
Reduces Crosstalk
o Pin Compatible with DS90LV047A and MAX9123
o Guaranteed 400Mbps Data Rate
o Single-Ended Inputs Tolerate 1V
Overshoot/Undershoot
o 250ps Maximum Pulse Skew
o IEC 61000-4-2 Level 4 ESD Tolerance on LVDS
Outputs
o Conforms to ANSI TIA/EIA-644 LVDS Standard
o Single +3.3V Supply
Ordering Information
PART
MAX9178EUE
MAX9178ETE
*EP = Exposed pad.
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
16 TSSOP
16 Thin QFN-EP*
Typical Application Circuit
LVDS SIGNALS
MAX9178
MAX9122
Functional Diagram appears at end of data sheet.
T_X
107Ω
R_X
Pin Configurations
TOP VIEW
EN 1
IN1 2
IN2 3
VCC 4
GND 5
IN3 6
IN4 7
EN 8
MAX9178
TSSOP
16 OUT1-
15 OUT1+
14 OUT2+
13 OUT2-
12 OUT3-
11 OUT3+
10 OUT4+
9 OUT4-
IN2 1
VCC 2
GND 3
IN3 4
16 15 14 13
MAX9178
EXPOSED PAD
12 OUT2+
11 OUT2-
10 OUT3-
9 OUT3+
5
6
7
8
QFN
T_X
LVTTL/CMOS
DATA INPUT
T_X
107Ω
R_X
107Ω
R_X
LVTTL/CMOS
DATA OUTPUT
T_X
107Ω
R_X
100Ω SHIELDED TWISTED CABLE OR MICROSTRIP PC BOARD TRACES
________________________________________________________________ Maxim Integrated Products 1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.