MAXIM MAX3902D

19-3278; Rev 1; 7/04
150Mbps Automotive Fiber Optic Receivers
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 (S100β).
Both circuits provide an input power detect and lowpower 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.
Features
♦ -40°C to +140°C Operating Junction Temperature
♦ Operation Up to 50Mbps (MAX3901)
♦ Operation Up to 150Mbps (MAX3902)
♦ +3.3V or +5.0V Power Supply (MAX3901)
♦ 1.2µAP-P Input Sensitivity
♦ 1mAP-P Input Overload
♦ Input Power Detect with Power-Reducing Standby
Mode
♦ Active Output Pulldown During Standby Mode
(MAX3901)
♦ 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
PIN-PACKAGE
MAX3901E/D
-40°C to +140°C
Dice*
MAX3902E/D
-40°C to +140°C
Dice*
*Dice are designed to operate over a -40°C to +140°C junction
temperature (Tj) range, but are tested and guaranteed at TA =
+75°C.
Typical Operating Circuits
+5.0V
VCC
OPTICAL RECEIVER
SUPPLY
FILTER
+3.3V
OPTICAL RECEIVER
VCC
FILT
+3.3V
SWITCHED
VCC
STATUS
STATUS
FILT
MAX3901
IN
SUPPLY
FILTER
OUT_TTL
STATUS
MAX3902
RX DATA
TTL INPUT
(SP4 AUTOMOTIVE
NETWORK INTERFACE)
IN
82Ω
OUT+
PECL
INPUT
OUT0.1µF
GND
GND
82Ω
0.1µF
130Ω
130Ω
GND
Typical Operating Circuits continued at end of data sheet.
________________________________________________________________ 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
MAX3901/MAX3902
General Description
MAX3901/MAX3902
150Mbps Automotive Fiber Optic Receiver
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (VCC) ...............................................-0.5V to +6V
Current into IN ....................................................................±3mA
Voltage at OUT+, OUT- (MAX3902) .............................0V to +6V
Current into OUT_TTL (MAX3901)....................................±10mA
Current into FILT ..................................................................-3mA
Voltage at STATUS .......................................-0.5V to (VCC + 0.5)
Operating Junction Temperature Range ............-55°C to +150°C
Storage Temperature Range .............................-65°C to +175°C
Die Attach Temperature...................................................+400°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS—MAX3901
(VCC = +3.135V to +5.25V, CPD = 2pF; Tj = -40°C to +140°C. Typical values are at VCC = +5.0V and TA = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNIT
POWER SUPPLY
Operating Power-Supply Current
ICC
Standby Current
ISTBY
Power-Up Time
tPU
TJ < +100°C
14
TJ < +140°C
22
28
TJ < +85°C
10
TJ < +125°C
20
80
From valid VCC to STATUS low
0.06
mA
µA
1
ms
50
Mbps
0.4
1.2
µAP-P
0.8
1.0
-0.35
-0.45
INPUT PARAMETERS
Data Rate
Input Extinction Ratio
Er
Input Sensitivity
8
10log (P1 / P0)
3
(Notes 1, 2)
IIN ≤ 600µA
Input Overload
Input Bias Voltage
Maximum 3 CIDs
dB
1.0
VIN
mAP-P
V
FILT PIN
Voltage at FILT
VFILT
Filter Resistor
RFILT
IFILT = -600µA, referenced to VCC
100
V
kΩ
DATA OUTPUT (OUT_TTL) RLOAD = 50kΩ to GND, COUT = 15pF
Output High
VOH
Output Low
VOL
Output Voltage During Standby
2.5
STATUS = high, IOUT = 30µA
Output Switching Time
tr, tf
10% to 90%, data rate ≤ 45Mbps
Pulse-Width Variation
PWV
45Mbps (Notes 1, 3), 1.2µAP-P ≤
iIN ≤ 1mAP-P
0.86
Average Pulse-Width Distortion
PWD
45Mbps (Notes 1, 3)
-0.07
Data-Dependent Jitter
DDJ
(Notes 1, 4)
iIN ≥ 1.2µAP-P (Note 1)
Uncorrelated Jitter (Random Jitter)
RJ
2.7
V
0.3
0.4
V
0.06
0.4
V
5
8.5
ns
1.14
UI
+0.07
UI
0.035
0.082
UI
0.007
0.015
UIRMS
POWER DETECT (STATUS)
Input for STATUS High
ISTH
Standby mode
Input for STATUS Low
ISTL
Operating mode
STATUS Low Voltage
VSTATUS-L
ISTATUS < 1mA
STATUS High Voltage
2
VSTATUS-H
ISTATUS > -25µA
ISTATUS > -20µA, VCC ≥ 4.75V
50
160
210
2.4
4
_______________________________________________________________________________________
nA
630
nA
0.4
V
V
150Mbps Automotive Fiber Optic Receiver
(VCC = +3.135V to +5.25V, CPD = 2pF; Tj = -40°C to +140°C. Typical values are at VCC = +5.0V and TA = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
STATUS Resistance
CONDITION
MIN
TYP
MAX
10
16
24
kΩ
Transition to operating mode (Note 5)
0.2
0.5
ms
Transition to standby mode (Note 6)
16
100
µs
RSTATUS
tOP
Power-Detect Time
tSTBY
UNIT
Note 1: Guaranteed by design and characterization.
Note 2: BER = 1E-9, biphase-coded data containing three consecutive, identical digits. Waveform shaped by 39MHz four-pole filter.
Note 3: See Figure 1. VTH is 1.5V for the MAX3901, 0V for (AC-coupled) differential output from the MAX3902. Data is biphase-coded
with three consecutive, identical digits added. Data input to the MAX3901 is shaped by a 39MHz four-pole filter. Data input to
the MAX3902 is shaped by a 117MHz four-pole filter.
Maximum PWV = MAX [t1max, t2max - 1UI, t3max - 2UI].
Minimum PWV = MIN [t1min, t2min - 1UI, t3min - 2UI].
Minimum PWD = MIN [(tn-max + tn-min -2 x n x UI)/2], where n = 1, 2, 3.
Maximum PWD = MAX [(tn-max + t+n-min -2 x n x UI)/2], where n = 1, 2, 3.
Note 4: Data-dependent jitter is measured as shown in MOST Specification of Physical Layer, Version 1.1, data rate = 45Mbps.
Note 5: Time from IIN > ISTL to STATUS = low, CSTATUS < 10pF.
Note 6: Time from IIN < ISTH to STATUS = high, CSTATUS < 10pF.
t3max
t2max
t1max
VTH
t1min
t2min
t3min
TRIGGER ON RISING EDGE
Figure 1. PWV and PWD Timing Diagrams
_______________________________________________________________________________________
3
MAX3901/MAX3902
ELECTRICAL CHARACTERISTICS—MAX3901 (continued)
MAX3901/MAX3902
150Mbps Automotive Fiber Optic Receiver
ELECTRICAL CHARACTERISTICS—MAX3902
(VCC = +3.0V to +3.6V, CPD = 2pF; Tj = -40°C to +140°C. Typical values are at VCC = +3.3V and TA = +25°C, unless otherwise noted.)
PARAMETER
SYMBOL
CONDITION
MIN
TYP
MAX
UNIT
26
35
mA
POWER SUPPLY
Operating Power-Supply Current
ICC
Standby Current
ISTBY
Power-Up Time
tPU
TJ < +85°C
9
TJ < +125°C
18
80
From valid VCC to STATUS low
0.06
µA
1
ms
150
Mbps
1.2
µAP-P
INPUT PARAMETERS
Data Rate
Input Extinction Ratio
Er
Maximum 5 CIDs
40
10log (P1 / P0)
3
Input Sensitivity
(Notes 1, 7)
Input Overload
IIN ≤ 600µA
Input Bias Voltage
dB
1.0
VIN
mAP-P
0.75
1.0
V
-0.35
-0.45
V
FILT PIN PARAMETERS
Voltage at FILT
VFILT
Filter Resistor
RFILT
IFILT = -600µA, referenced to VCC
100
kΩ
DIFFERENTIAL OUTPUT
Differential Signal Output
VOUT
Total signal measured between the
two outputs
600
800
1000
Output Resistance
ROUT
Single ended
85
mVP-P
100
115
Ω
Output Switching Time
tr, tf
10% to 90%, iIN ≥ 2µAP-P
1.5
2.5
ns
Deterministic Jitter
DJ
(Notes 1, 8)
0.03
0.10
UI
iIN = 2.0µAP-P, Er = 3dB,
input filter 117MHz (Note 1)
135
215
iIN = 2µAP-P, Er = 10dB,
input filter = 117MHz
122
Random Jitter
RJ
Pulse-Width Variation
PWV
(Notes 1, 3) 2µAP-P ≤ iIN ≤ 1mAP-P
Average Pulse-Width Distortion
PWD
(Notes 1, 3)
Data-Dependent Jitter
DDJ
(Notes 1, 4)
Input for STATUS High
ISTH
Standby mode
Input for STATUS Low
ISTL
Operating mode
STATUS Low Voltage
VSTATUS-L
ISTATUS < 1mA
STATUS High Voltage
VSTATUS-H
ISTATUS > -25µA
psRMS
0.88
-0.045
0.01
1.12
UI
+0.042
UI
0.071
UI
630
nA
0.4
V
24
kΩ
POWER DETECT (STATUS)
STATUS Resistance
Power-Detect Time
RSTATUS
tOP
tSTBY
50
160
210
nA
2.4
10
V
16
Transition to operating mode (Note 5)
0.2
0.5
ms
Transition to standby mode (Note 6)
16
100
µs
Note 7: BER = 1E-9, test pattern is K28.5 (00111110101100000101), waveform shaped by a 117MHz four-pole filter.
Note 8: Tested with K28.5 pattern at 45Mbps and 150Mbps, 2.0µAP-P < iIN < 1mAP-P, waveform shaped by 117MHz four-pole filter.
Deterministic jitter (DJ) is the peak-to-peak deviation from ideal time crossings, measured at the zero-level crossings of the
differential output.
4
_______________________________________________________________________________________
150Mbps Automotive Fiber Optic Receiver
25
20
15
10
5
300
INPUT CURRENT (nA)
30
SUPPLY CURRENT (µA)
30
350
MAX3901/02 toc02
35
MAX3901/02 toc01
35
25
20
15
10
0
20
40
60
80 100 120 140
200
150
STATUS = HIGH
-40 -20
TEMPERATURE (°C)
0
20
40
60
-40 -20
80 100 120 140
0
FILTER VOLTAGE
vs. FILTER CURRENT
400
350
OUTPUT VOLTAGE (mV)
4.6
40
60
80 100 120 140
OUTPUT VOLTAGE vs. OUTPUT CURRENT
IN STANDBY MODE
MAX3901/02 toc04
5.0
20
TEMPERATURE (°C)
TEMPERATURE (°C)
4.2
3.8
MAX3901/02 toc05
0
250
50
0
-40 -20
STATUS = LOW
100
5
FILTER VOLTAGE (V)
SUPPLY CURRENT (mA)
STATUS THRESHOLDS
vs. TEMPERATURE
SUPPLY CURRENT DURING STANDBY
vs. TEMPERATURE
MAX3901/02 toc03
SUPPLY CURRENT
vs. TEMPERATURE
300
250
200
150
100
3.4
50
3.0
0
1µ
10µ
100µ
FILTER CURRENT (A)
1m
0
20
40
60
80
100
120
OUTPUT CURRENT (µA)
_______________________________________________________________________________________
5
MAX3901/MAX3902
MAX3901 Typical Operating Characteristics
(VCC = +5.0V, CPD = 2pF, test pattern is biphase-coded data with 3 CIDs at 50Mbps, TA = +25°C, unless otherwise noted.)
MAX3901 Typical Operating Characteristics (continued)
(VCC = +5.0V, CPD = 2pF, test pattern is biphase-coded data with 3 CIDs at 50Mbps, TA = +25°C, unless otherwise noted.)
150
BIT ERROR RATE
200
Er = 3dB
Er = 10dB
100
1.0E-07
1.0E-08
1.0E-09
50
1.0E-10
0
10µ
100µ
1m
SILICON PHOTODIODE
850nm SOURCE,
Er >10dB, BER = 1E-9
-25
-27
-29
-31
-33
-35
1.0E-11
1µ
-37
-33
-32.5
-32
-31.5
-31
-40
OPTICAL INPUT (dBm OMA)
INPUT AMPLITUDE (AP-P)
OUTPUT EYE DIAGRAM
(+3dBm OMA OPTICAL INPUT AT +25°C
SILICON PHOTODIODE WITH 850nm SOURCE)
-20
0
20
OUTPUT EYE DIAGRAM
(-27dBm OMA OPTICAL INPUT AT +25°C
SILICON PHOTODIODE WITH 850nm SOURCE)
6
MAX3901/02 toc10
500mV/div
4ns/div
40
60
TEMPERATURE (°C)
MAX3901/02 toc09
500mV/div
MAX3091/02 toc08
1.0E-06
-23
OPTICAL POWER (dBm OMA)
250
SILICON PHOTODIODE
850nm SOURCE, Er >10dB
MAX3901/02 toc07
1.0E-05
MAX3901/02 toc06
300
OPTICAL SENSITIVITY
vs. TEMPERATURE
BER
vs. OPTICAL INPUT
UNCORRELATED (RANDOM) JITTER
vs. INPUT AMPLITUDE
UNCORRELATED (RANDOM) JITTER (psRMS)
MAX3901/MAX3902
150Mbps Automotive Fiber Optic Receiver
4ns/div
_______________________________________________________________________________________
80
100
150Mbps Automotive Fiber Optic Receiver
20
15
10
400
350
300
250
+140°C
-40°C
200
150
100
5
-21
+25°C
-40 -20
0
20
40
60
80 100 120 140
10µ
100µ
OUTPUT EYE DIAGRAM
(2µAP-P ELECTRICAL INPUT AT TJ = -40°C)
-27
-29
-40
-20
0
20
40
60
80
100
TEMPERATURE (°C)
OUTPUT EYE DIAGRAM
(2µAP-P ELECTRICAL INPUT AT TJ = +140°C)
MAX3901/02 toc15
MAX3901/02 toc16
MAX3901/02 toc14
1.0E-05
-25
1m
BER vs. OPTICAL INPUT
1.0E-04
BIT ERROR RATE
1µ
INPUT AMPLITUDE (A)
SILICON PHOTODIODE
850nm SOURCE, Er >10dB
-23
-33
0
JUNCTION TEMPERATURE (°C)
1.0E-03
SILICON PHOTODIODE
850nm SOURCE,
BER = 1E-9, Er >10dB
-31
50
0
MAX3091/02 toc13
450
OPTICAL POWER (dBm)
25
-19
MAX3901/02 toc12
SUPPLY CURRENT (mA)
30
500
DETERMINISTIC JITTER (ps)
MAX3901/02 toc11
35
OPTICAL SENSITIVITY
vs. TEMPERATURE
DETERMINISTIC JITTER
vs. INPUT AMPLITUDE
SUPPLY CURRENT vs. TEMPERATURE
1.0E-06
125mV/div
1.0E-07
125mV/div
1.0E-08
1.0E-09
1.0E-10
1.0E-11
-30
-29
-28
1.25ns/div
1.25ns/div
OUTPUT EYE DIAGRAM
(-27.7dBm OMA OPTICAL INPUT AT TJ = +25°C)
SILICON PHOTODIODE WITH 850nm SOURCE
OUTPUT EYE DIAGRAM
(+3dBm OMA OPTICAL INPUT AT TJ = +25°C)
SILICON PHOTODIODE WITH 850nm SOURCE
-27
OPTICAL INPUT (dBm OMA)
OUTPUT EYE DIAGRAM
(1mAP-P ELECTRICAL INPUT AT TJ = +25°C)
125mV/div
125mV/div
125mV/div
1.25ns/div
MAX3901/02 toc19
MAX3901/02 toc18
MAX3901/02 toc17
1.25ns/div
1.25ns/div
_______________________________________________________________________________________
7
MAX3901/MAX3902
MAX3902 Typical Operating Characteristics
(VCC = +5.0V, CPD = 2pF, test pattern is K28.5 at 150Mbps, TA = +25°C, unless otherwise noted.)
150Mbps Automotive Fiber Optic Receiver
MAX3901/MAX3902
Pad Description
BOND
PAD
MAX3901
NAME
MAX3902
NAME
FUNCTION
1
FILT
FILT
Filter Pin. Must be connected to photodiode cathode for the IC to operate. This pin provides
connection to an integrated photodiode filter.
2
IN
IN
3, 4,
13, 14, 15
N.C.
N.C.
No Connection
Data Input. Connect photodiode anode to this pin.
5, 6, 7
VCC
VCC
Supply Voltage
8, 16, 17
GND
GND
Circuit Ground
9
N.C.
OUT+
Noninverting Data Output. Current flowing into IN causes the voltage at OUT+ to increase.
10
N.C.
OUT-
Inverting Data Output. Current flowing into IN causes the voltage at OUT- to decrease.
11
STATUS
STATUS
12
OUT_TTL
N.C.
Status Monitor. STATUS is TTL low when the receiver is in operating mode. STATUS is TTL
high when the receiver is in standby mode.
TTL Data Output. Current flowing into IN causes the voltage at OUT_TTL to increase.
Detailed Description
The MAX3901/MAX3902 receivers are optimized for
automotive fiber optic applications. The MAX3901 is a
single-ended TTL output receiver. The MAX3902 is a
differential CML output receiver. The MAX3901/
MAX3902 are both comprised of a transimpedance
amplifier, a voltage-gain amplifier, an output buffer, a
DC cancellation circuit, and a power detector with status monitor, as shown in Figure 2.
CML Output Buffer
The output buffer for the MAX3902 is a differential CML
output designed to drive a 100Ω differential load between
OUT+ and OUT- (Figure 3). For optimum supply noise
rejection, the MAX3902 should be terminated with a differential load. If a single-ended output is required, both
the used and the unused outputs should be terminated in
a similar manner.
Signal Path
The signal path consists of a transimpedance amplifier, a
voltage-gain amplifier, and a DC cancellation circuit. The
transimpedance amplifier converts input current to voltage. The voltage-gain amplifier converts single-ended to
differential voltage. The DC cancellation circuit uses lowfrequency feedback to remove the DC component of the
input signal. This feature centers the input signal within
the transimpedance amplifier’s linear range, thereby
reducing pulse-width distortion. The highpass response
of the DC cancellation circuit limits the number of consecutive identical digits that can be tolerated.
TTL Output Buffer
The output buffer for the MAX3901 is a single-ended
TTL output designed to drive a high-impedance load.
Output capacitance should be less than 15pF to ensure
stable operation. The TTL output is not compatible with
50Ω test equipment. Use a high-impedance probe to
monitor the output.
During standby mode, the TTL output is actively pulled
to a low state.
VCC
MAX3901
MAX3902
FILT
POWER
DETECTOR
STATUS
VCC INTERNAL
VOLTAGE
AMPLIFIER
IN
TIA
OUT+
(MAX3902)
CML
OUT(MAX3902)
DC
CANCELLATION
TTL
Figure 2. Functional Diagram
8
_______________________________________________________________________________________
OUT_TTL
(MAX3901)
150Mbps Automotive Fiber Optic Receiver
VCC
ROUT
Status Monitor
ROUT
OUT+
VCC
OUT-
The MAX3901/MAX3902 include a status monitor
(Figure 4). The average current at the FILT (Figure 5)
pad determines whether the MAX3901/MAX3902 are in
operating or standby mode. STATUS is TTL low when
the receiver is in operating mode. STATUS is TTL high
when the receiver is in standby mode.
Applications Information
Optical Power Relations
Many of the MAX3901/MAX3902 specifications relate to
the input signal amplitude. Figure 6 and Table 1 show
relations that are helpful for converting optical power to
input signal when designing with the MAX3901/
MAX3902.
MAX3902
Wire Bonding
Figure 3. MAX3902 CML Output
VCC
RSTATUS
16kΩ
STATUS
MAX3901
MAX3902
For high-current density and reliable operation, the
MAX3901 and MAX3902 use gold metalization. For
best results, use gold-wire ball-bonding techniques.
Use caution if attempting wedge bonding. Bond-pad
size is 94.4µm x 94.4µm, and bond-pad metal thickness is 1.2µm. Refer to Maxim Application Note, HFAN08.0.1: Understanding Bonding Coordinates and
Physical Die Size for additional information.
Table 1. Optical Power Relations*
PARAMETER
SYMBOL
RELATION
Average Power
PAVE
PAVE = (P0 + P1) / 2
Extinction Ratio
Er
2PAVE + OMA
2PAVE − OMA
Optical Power
of a “1”
P1
P1 = 2PAVE
Optical Power
of a “0”
P0
P0 = 2PAVE / Er + 1
Er = P1 / P0
Figure 4. STATUS Monitor Output
VCC
100kΩ
Optical Modulation
Amplitude
MAX3901
MAX3902
FILT
OMA
Er
Er + 1
E -1
OMA = P1 − P0 = 2PAVE r
Er + 1
*Assuming a 50% average mark density.
35pF
Figure 5. FILT pad
_______________________________________________________________________________________
9
MAX3901/MAX3902
The coupling capacitor should be 0.1µF or larger. Refer
to Application Note HFAN-1.1: Choosing AC-Coupling
Capacitors for a more detailed discussion.
VCC
Table 2 gives center pad coordinates for the MAX3901
and MAX3902 bond pads.
Table 2. Bond-Pad Information
P1
NAME
PAD
OPTICAL POWER
MAX3901/MAX3902
150Mbps Automotive Fiber Optic Receiver
PAVE
P0
TIME
Figure 6. Optical Power Relations
Chip Information
TRANSISTOR COUNT: 1175
PROCESS: Silicon Bipolar, CB30HM
Die Thickness: 12 mils (300µm)
COORDINATES (µm)
MAX3901
MAX3902
X
Y
BP1
FILT
FILT
51.0
1302.0
BP2
IN
IN
51.0
1128.0
BP3
N.C.
N.C.
51.0
825.0
BP4
N.C.
N.C.
51.0
399.0
BP5
VCC
VCC
51.0
225.0
BP6
VCC
VCC
51.0
51.0
-30.0
BP7
VCC
VCC
291.0
BP8
GND
GND
918.0
-30.0
BP9
N.C.
OUT+
1140.0
-30.0
-30.0
BP10
N.C.
OUT-
1359.0
BP11
STATUS
STATUS
1548.0
-30.0
BP12
OUT_TTL
N.C.
1581.0
279.0
BP13
N.C.
N.C.
936.0
1338.0
BP14
N.C.
N.C.
762.0
1338.0
BP15
N.C.
N.C.
585.0
1338.0
BP16
GND
GND
408.0
1338.0
BP17
GND
GND
231.0
1338.0
Coordinate 0,0 is the lower left corner of the passivation opening
for pad 6.
Table 3. Typical Optical Receiver Performance
RECEIVER
CONFIGURATION
PCS 850nm
ρ = 0.5A/W
MAX3901 Receiver
POF 650nm
ρ = 0.3A/W
MAX3901 Receiver
PCS 850nm
ρ = 0.5A/W
MAX3902 Receiver
Worst-Case Sensitivity
BER = 1E - 9 and
STATUS = Low
-26.2dBm OMA
-27dBm
-26.2dBm OMA
Expected Typical Sensitivity
-31.5dBm OMA
-29dBm
-30.5dBm OMA
+3dBm OMA
+5dBm
+3dBm OMA
-35dBm
-37dBm
-35dBm
-32.5dBm
-34.5dBm
-32.5dBm
OPTICAL PARAMETER
Optical Overload
Typical Input for Standby
Mode
Typical Input for Operating
Mode
10
______________________________________________________________________________________
150Mbps Automotive Fiber Optic Receiver
+3.3V
SUPPLY
FILTER
OPTICAL RECEIVER
VCC
FILT
STATUS
5kΩ
25Ω
LVDS
INPUT
OUT+
IN
MAX3902
100Ω
OUT-
0.1µF
100Ω
0.1µF
25Ω
GND
5kΩ
______________________________________________________________________________________
11
MAX3901/MAX3902
Typical Operating Circuits (continued)
150Mbps Automotive Fiber Optic Receiver
FILT
1
IN
2
N.C.
3
GND
GND
N.C.
N.C.
N.C.
MAX3901/MAX3902
MAX3901 Chip Topography
17
16
15
14
13
1.65mm
65mils
N.C.
4
6
VCC
7
8
9
10
N.C.
VCC
N.C.
5
GND
12
VCC
11
1.80mm
71mils
12
______________________________________________________________________________________
OUT_TTL
STATUS
150Mbps Automotive Fiber Optic Receiver
1
IN
2
N.C.
3
N.C.
15
N.C.
16
N.C.
GND
GND
17
FILT
14
13
1.63mm
64.17mils
N.C.
4
5
VCC
6
GND
8
VCC
(0, 0)
7
9
10
OUT-
VCC
OUT+
12
11
N.C.
STATUS
1.78mm
70.08mils
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600 ____________________ 13
© 2004 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
MAX3901/MAX3902
MAX3902 Chip Topography