General Description
The MAX9179 is a quad low-voltage differential
signaling (LVDS) line receiver designed for applications
requiring high data rates, low power dissipation, and
noise immunity. The receiver accepts four LVDS input
signals and translates them to 3.3V LVCMOS output lev-
els at speeds up to 400Mbps. The receiver features
built-in hysteresis, which improves noise immunity and
prevents multiple switching on slow transitioning inputs.
The device supports a wide 0.038V to 2.362V common-
mode input voltage range, allowing for ground potential
differences and common-mode noise between the driver
and the receiver. A fail-safe circuit sets the output high
when the input is open, undriven and shorted, or undriven
and terminated. Common enable inputs control the high-
impedance outputs.
The MAX9179 has a flow-through pinout for easy PC
board layout, and is pin compatible with the MAX9121
and the DS90LV048A with the additional features of
high ESD tolerance and built-in hysteresis.
The MAX9179 operates from a single 3.3V supply, and is
specified for operation from -40°C to +85°C. The device
is offered in 16-pin TSSOP and thin QFN packages.
Applications
Laser Printers
Digital Copiers
Cell-Phone Base Stations
Telecom Switching Equipment
LCD Displays
Network Switches/Routers
Backplane Interconnect
Clock Distribution
Features
o
Guaranteed 400Mbps Data Rate
o
50mV (typ) Hysteresis
o
Overshoot/Undershoot Protection (-1.0V or V
CC
+
1.0V) on Enables
o
IEC61000-4-2 Level 4 ESD Tolerance
o
AC Specifications Guaranteed with |V
ID
|
=
100mV
o
Single 3.3V Supply
o
Fail-Safe Circuit
o
Flow-Through Pinout
Simplifies PC Board Layout
Reduces Crosstalk
o
Low-Power CMOS Design
o
Conforms to ANSI TIA/EIA-644 LVDS Standard
o
High-Impedance Inputs when Powered Off
o
Pin Compatible with the MAX9121 and the
DS90LV048A
o
Small Thin QFN Package Available
M
Quad LVDS Receiver with Hysteresis
________________________________________________________________
Maxim Integrated Products
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.
1
Ordering Information
19-2752; Rev 0; 2/03
PART
TEMP RANGE
-40
°
C to +85
°
C
-40
°
C to +85
°
C
PIN-PACKAGE
16 TSSOP
16 Thin QFN-EP**
MAX9179EUE
MAX9179ETE*
*
Future product—contact factory for availability.
**
EP = Exposed paddle.
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
IN1-
EN
OUT1
OUT2
V
CC
GND
OUT3
OUT4
TOP VIEW
MAX9179
TSSOP
THIN QFN
(LEADS UNDER PACKAGE)
EN
IN1+
IN2+
IN3+
IN2-
IN3-
IN4+
IN4-
IN2+
IN2-
IN3-
IN3+
OUT4
IN4-
IN4+
OUT2
V
CC
GND
OUT3
EN
OUT1
13
IN1-
15
IN1+
16
EN
14
MAX9179
EXPOSED PAD
1
2
3
4
5
6
7
8
12
11
10
9
Pin Configurations
Functional Diagram appears at end of data sheet.