19-3278; Rev 1; 7/04
150Mbps Automotive Fiber Optic Receivers
General Description
Features
ꢀ -40°C to +140°C Operating Junction Temperature
ꢀ Operation Up to 50Mbps (MAX3901)
The MAX3901/MAX3902 are optimized for low-cost
polymer-clad silica (PCS) and plastic optical fiber (POF)
automotive receivers. These parts operate over an
extended -40°C to +140°C (junction) temperature range.
ꢀ Operation Up to 150Mbps (MAX3902)
ꢀ +3.3V or +5.0V Power Supply (MAX3901)
The MAX3901 features a 1.2µA to 1mA input range, a
+3.3V or +5V supply voltage, operation from 8Mbps to
50Mbps, and a TTL output compatible with common
automotive optical network interfaces.
ꢀ 1.2µA
Input Sensitivity
P-P
ꢀ 1mA
Input Overload
P-P
ꢀ Input Power Detect with Power-Reducing Standby
The MAX3902 features a 1.2µA to 1mA input range,
+3.3V supply voltage, operation from 40Mbps to
150Mbps, and a differential output compatible with
LVDS, PECL, and IEEE 1394b (S100β).
Mode
ꢀ Active Output Pulldown During Standby Mode
(MAX3901)
Both circuits provide an input power detect and low-
power standby mode with status output. No filter
capacitors are required in the optical subassembly,
thus enabling a low-cost receiver design. The circuits
are available in die and wafer form.
ꢀ Differential LVDS- or PECL-Compatible Output
(MAX3902)
ꢀ TTL-Compatible Output (MAX3901)
ꢀ No Filter Capacitors Required in the Optical
Subassembly
Applications
Ordering Information
Automotive Fiber Optic Receivers
IEEE 1394b (S100β)
PART
TEMP RANGE
-40°C to +140°C
-40°C to +140°C
PIN-PACKAGE
Dice*
MAX3901E/D
MAX3902E/D
Dice*
*Dice are designed to operate over a -40°C to +140°C junction
temperature (T ) range, but are tested and guaranteed at T
=
j
A
+75°C.
Typical Operating Circuits
+5.0V
+3.3V
V
CC
SUPPLY
FILTER
SUPPLY
FILTER
OPTICAL RECEIVER
FILT
OPTICAL RECEIVER
+3.3V
SWITCHED
V
V
CC
CC
STATUS
STATUS
FILT
IN
STATUS
82Ω
82Ω
MAX3901
MAX3902
0.1µF
TTL INPUT
RX DATA
GND
IN
OUT_TTL
OUT+
OUT-
(SP4 AUTOMOTIVE
NETWORK INTERFACE)
PECL
INPUT
0.1µF
130Ω
130Ω
GND
GND
Typical Operating Circuits continued at end of data sheet.
________________________________________________________________ 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.