MAX9176 Datasheet, PDF (1/14 Pages) Maxim Integrated Products – 670MHz LVDS-to-LVDS and Anything-to-LVDS 2:1 Multiplexers

19-2757; Rev 0; 1/03
670MHz LVDS-to-LVDS and
Anything-to-LVDS 2:1 Multiplexers
General Description
The MAX9176/MAX9177 are 670MHz, low-jitter, low-
skew 2:1 multiplexers ideal for protection switching,
loopback, and clock distribution. The devices feature
ultra-low 68ps peak-to-peak deterministic jitter that
ensures reliable operation in high-speed links that are
highly sensitive to timing errors.
The MAX9176 has fail-safe LVDS inputs and an LVDS
output. The MAX9177 has “anything” differential inputs
(CML/LVDS/LVPECL) and an LVDS output. The output
can be put into high impedance using the power-down
input. The MAX9176 features fail-safe circuits that drive
the output high when a selected input is open, undriven
and shorted, or undriven and terminated. The MAX9177
has bias circuits that force the output high when a
selected input is open. The mux select and power-
down inputs are compatible with standard LVTTL/
LVCMOS logic.
The select and power-down inputs tolerate undershoot
of -1V and overshoot of V_CC + 1V. The MAX9176/
MAX9177 are available in 10-pin µMAX and 10-lead
thin QFN packages, and operate from a single 3.3V
supply over the -40°C to +85°C temperature range.
Applications
Protection Switching
Loopback
Clock Distribution
Functional Diagram appears at end of data sheet.
Features
o 1.0ps_(RMS) Jitter (max) at 670MHz
o 68ps_(P-P) Jitter at 800Mbps Data Rate
o 3.3V Supply
o LVDS Fail-Safe Inputs (MAX9176)
o Anything Inputs (MAX9177) Accept
CML/LVDS/LVPECL
o Select and Power-Down Inputs Tolerate -1.0V
and V_CC + 1.0V
o Low-Power CMOS Design
o 10-Lead µMAX and QFN Packages
o -40°C to +85°C Operating Temperature Range
o Conform to ANSI TIA/EIA-644 LVDS Standard
o IEC61000-4-2 Level 4 ESD Rating
Ordering Information
PART
MAX9176EUB
MAX9176ETB*
MAX9177EUB
MAX9177ETB*
TEMP RANGE
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
PIN-PACKAGE
10 µMAX
10 Thin QFN-EP**
10 µMAX
10 Thin QFN-EP**
*Future product—contact factory for availability.
**EP = Exposed paddle.
Pin Configurations
TOP VIEW
IN0+ 1
INO- 2
GND 3
IN1+ 4
IN1- 5
MAX9176
µMAX
10 OUT+
9 OUT-
8 V_CC
7 PD
6 SEL
IN0+ 1
INO- 2
GND 3
IN1+ 4
IN1- 5
EXPOSED
PAD
10 OUT+
9 OUT-
8 V_CC
7 PD
6 SEL
QFN
(LEADS UNDER PACKAGE)
________________________________________________________________ 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.