General Description
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.
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.
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 (S100
β
).
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.
Applications
Automotive Fiber Optic Receivers
IEEE 1394b (S100
β
)
Features
o
-40°C to +140°C Operating Junction Temperature
o
Operation Up to 50Mbps (MAX3901)
o
Operation Up to 150Mbps (MAX3902)
o
+3.3V or +5.0V Power Supply (MAX3901)
o
1.2μA
P-P
Input Sensitivity
o
1mA
P-P
Input Overload
o
Input Power Detect with Power-Reducing Standby
Mode
o
Active Output Pulldown During Standby Mode
(MAX3901)
o
Differential LVDS- or PECL-Compatible Output
(MAX3902)
o
TTL-Compatible Output (MAX3901)
o
No Filter Capacitors Required in the Optical
Subassembly
M
150Mbps Automotive Fiber Optic Receivers
________________________________________________________________
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
MAX3902
FILT
V
CC
GND
0.1
μ
F
82
82
PECL
INPUT
STATUS
IN
OUT+
MAX3901
FILT
V
CC
V
CC
RX DATA
GND
STATUS
GND
+5.0V
TTL INPUT
(SP4 AUTOMOTIVE
NETWORK INTERFACE)
STATUS
IN
OPTICAL RECEIVER
OPTICAL RECEIVER
OUT_TTL
SUPPLY
FILTER
+3.3V
SWITCHED
130
130
0.1
μ
F
OUT-
SUPPLY
FILTER
+3.3V
Typical Operating Circuits
19-3278; Rev 1; 7/04
*
Dice are designed to operate over a -40°C to +140°C junction
temperature (T
j
) range, but are tested and guaranteed at T
A
=
+75°C.
PART
TEMP RANGE
-40
°
C to +140
°
C
-40
°
C to +140
°
C
PIN-PACKAGE
Dice*
Dice*
MAX3901
E/D
MAX3902
E/D
Typical Operating Circuits continued at end of data sheet.