MAX3736ETE+-MAX3736ETE+T Fast Delivery |IC PHOENIX CO.,LIMITED

MAX3736ETE+T ,3.2Gbps, Low-Power, Compact, SFP Laser DriverELECTRICAL CHARACTERISTICS(V = +2.97V to +3.63V, T = -40°C to +85°C. Typical values are at V = +3.3 ..
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MAX3736ETE+-MAX3736ETE+T
3.2Gbps, Low-Power, Compact, SFP Laser Driver
General Description
The MAX3736 is a compact, +3.3V multirate laser driver
for SFP/SFF applications up to 3.2Gbps. The device
accepts differential data and provides bias and modula-
tion currents for driving a laser. DC-coupling to the laser
allows for multirate applications, and reduces the num-
ber of external components.
The wide 5mA to 60mA (85mA AC-coupled) modulation
current range and 1mA to 100mA bias current make the
MAX3736 ideal for driving FP/DFB laser diodes in fiber-
optic modules. The laser current setting can be con-
trolled by a current DAC, a voltage DAC, or a resistor.
Very low power dissipation, small package size, and
reduced component count, make this part an ideal solu-
tion for SFP-module applications.
The MAX3736 is available in a small 3mm x 3mm, 16-pin
thin QFN package. It operates over a -40°C to +85°C
temperature range.
Applications
Gigabit Ethernet SFP/SFF Transceiver Modules
1G/2G Fibre-Channel SFP/SFF Transceiver
Modules
Multirate OC-3 to OC-48 FEC SFP/SFF
Transceiver Modules
10G Ethernet LX-4 Modules
FeaturesFully Compatible with SFP and SFF-8472
SpecificationsProgrammable Modulation Current from 5mA to
60mA (DC-Coupled)Programmable Modulation Current from 5mA to
85mA (AC-Coupled)Programmable Bias Current from 1mA to 100mA56ps Edge Transition Times 22mA (typ) Power-Supply CurrentMultirate Operation Up to 3.2GbpsOn-Chip Pullup Resistor for DIS16-Pin, 3mm ×3mm Thin QFN Package
MAX3736
3.2Gbps, Low-Power, Compact,
SFP Laser Driver
Ordering Information
+3.3V
SUPPLY FILTER
OUT-
OUT+
BIAS
BIASSET
MODSET
IN+
IN-
MOD-DEF1
MOD-DEF2
TX_DISABLELASER CONTROLLER
15Ω56Ω
10Ω
8.2pF
0.01μF
FERRITE
BEAD
0.1μF
0.1μF
GNDDIS
SERDES
HOST FILTER
VCC_RX
BC_MON
50Ω
50Ω
HOST BOARDSFP OPTICAL TRANSMITTER
MAX3736
Typical Application Circuit
19-3116; Rev 2; 9/10
+Denotes a lead(Pb)-free/RoHS-compliant package.
*EP = Exposed pad.
PARTTEMP RANGEPIN-PACKAGE
MAX3736ETE -40°C to +85°C 16 Thin QFN-EP*
MAX3736ETE+ -40°C to +85°C 16 Thin QFN-EP*
Pin Configuration appears at end of data sheet.
MAX3736
3.2Gbps, Low-Power, Compact,
SFP Laser Driver
ABSOLUTE MAXIMUM RATINGS
ELECTRICAL CHARACTERISTICS
(VCC= +2.97V to +3.63V, TA = -40°C to +85°C. Typical values are at VCC= +3.3V, IBIAS= 20mA, IMOD= 30mA, TA= +25°C, unless
otherwise noted.) (Note 1)
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.
Power-Supply Voltage VCC ..................................-0.5V to +6.0V
Voltage at IN+, IN-, DIS…..…………………-0.5V to (VCC + 0.5V)
Voltage at BC_MON, MODSET, BIASSET.............-0.5V to +3.0V
Voltage at OUT+, OUT-.……………………+0.5V to (VCC+ 1.5V)
Voltage at BIAS............……………………+0.5V to (VCC+ 0.5V)
Current into BIAS, OUT+, OUT-......................-20mA to +150mA
Current into IN+, IN-......…………………………-20mA to +20mA
Continuous Power Dissipation (TA= +85°C)
16-Pin Thin QFN (derate 25mW/°C above +85°C).............2W
Operating Junction Temperature Range ..........-55°C to +150°C
Storage Temperature Range.............................-55°C to +150°C
Die Attach Temperature ..................................................+400°C
Lead Temperature (soldering, 10s).................................+300°C
Soldering Temperature (reflow)
Lead(Pb)-free...............................................................+260°C
Containing lead(Pb).....................................................+240°C
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Power-Supply Current ICCExcludes the laser bias and modulation
currents (Note 2) 22 35 mA
I/O SPECIFICATIONS
Differential Input Voltage VID VID = VIN+ - VIN-, Figure 1 0.2 2.4 VP-P
Common-Mode Input Voltage VINCM 0.6
VCC V
Differential Input Resistance RIN 85 100 115
DIS Input Pullup Resistance RPULL 4.7 7.2 10.0 k
VDIS = VCC 15 DIS Input Current VDIS = VGND, VCC = 3.3V, RPULL = 7.4k -450 μA
DIS Input High Voltage VIH 2.0 V
DIS Input Low Voltage VIL 0.8 V
BIAS GENERATOR
Bias Current Range IBIAS Current into BIAS pin 1 100 mA
Bias Off-Current IBIASOFF Current into BIAS pin, DIS asserted high 100 μA
5mA IBIAS 10mA 70 85 95 BIASSET Current Gain GBIAS (Note 3) 10mA IBIAS 100mA 79 85 91 A/A
BIASSET Current Gain Stability 10mA IBIAS 100mA (Note 4) -4.4 +4 %
BIASSET Current Gain Linearity 10mA IBIAS 100mA (Note 5) -2.3 +2.3 %
Bias Overshoot During SFP module hot plugging;
see Figure 3 (Notes 5, 6) 10 %
Bias-Current Monitor Gain (Note 5) 13.7 mA/A
1mA IBIAS 5mA |4|
5mA IBIAS 10mA -7 |2.8| +7 Bias-Current Monitor Gain
Stability (Notes 4, 5)
10mA IBIAS 100mA -5 |2.4| +5
MAX3736
3.2Gbps, Low-Power, Compact,
SFP Laser Driver
Note 1:Specifications at -40°C are guaranteed by design and characterization.
Note 2:Maximum value is specified at IMOD= 60mA and IBIAS = 100mA. BC_MON connected to VCC.
Note 3:Modulation current gain, GMOD, is defined as GMOD= IMOD/ IMODSET. Bias current gain, GBIAS, is defined as GBIAS=
IBIAS/ IBIASSET. The nominal gain is measured at VCC= +3.3V and TA= +25°C.
Note 4:Gain stability is defined as [(Gain) - (Nom_Gain)] / (Nom_Gain) over the listed current range, temperature, and supply
variation. Nominal gain is measured at VCC= +3.3V, TA= +25°C. The voltage at the BC_MON pin must not exceed 1.39V.
Note 5:Guaranteed by design and characterization; see Figure 2.
Note 6:VCCturn-on time must be less than 0.8s, DC-coupled interface.
Note 7:The gain matching is defined as ABS [(GMOD/GBIAS- GMODNOM/GBIASNOM)/(GMODNOM/GBIASNOM)] over the specified
temperature and voltage supply range.
Note 8:For supply noise tolerance, noise is added to the supply (100mVP-P) up to 2MHz; see Figure 3.
ELECTRICAL CHARACTERISTICS (continued)
(VCC= +2.97V to +3.63V, TA = -40°C to +85°C. Typical values are at VCC= +3.3V, IBIAS= 20mA, IMOD= 30mA, TA= +25°C, unless
otherwise noted.) (Note 1)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Current into OUT+, RL = 15,
VOUT+ and VOUT- 0.6V (DC-coupled) 5 60
Modulation Current Range IMOD
Current into OUT+, RL = 15,
VOUT+ and VOUT- 2.0V (AC-coupled) 5 85
mAP-P
MODULATOR
5mA IMOD 10mA 70 8595Modulation Current Gain GMOD (Note 3) 10mA IMOD 85mA 79 85 91 A/A
Modulation Current Gain Stability 10mA IMOD 85mA (Notes 4, 5) -4.4 +4 %
Modulation Current Gain Linearity 10mA IMOD 85mA (Note 5) -3.3 +3.3 %
IBIASSET = 0.15mA; IMODSET = 0.7mA 2.3
IBIASSET = IMODSET = 0.15mA 0.1 1.4
IBIASSET = IMODSET = 0.4mA 0.1 1
IBIASSET = IMODSET = 0.6mA 0.1 1
Bias Current Gain and
Modulation Current Gain
Matching (Notes 5, 7)
IBIASSET = IMODSET = 0.9mA 0.1 1
Modulation OFF Current IMODOFF DIS asserted high 100 μA
Rise Time tR20% to 80%; 10mA IMOD 60mA (Note 5) 48 80 ps
Fall Time tF80% to 20%; 10mA IMOD 60mA (Note 5) 58 80 ps
10mA IMOD 60mA; 2.67Gbps; 23-1 PRBS 16 38
10mA IMOD 60mA; 3.2Gbps;
K28.5 pattern 17 38
10mA IMOD 60mA; 155Mbps; 23-1 PRBS 30
psP-P
Deterministic Jitter
(Notes 5, 8)
10mA IMOD 60mA; 3.2Gbps; K28.5;
TA = +100°C 6.3 ps
Random Jitter 10mA IMOD 60mA (Note 5) 0.6 1 psRMS
OPTICAL EYE
(155Mbps)
MAX3736 toc01
919ps/div
117 MHz FILTER, 231 - 1 PRBS
1310nm FP LASER
OPTICAL EYE
(2.488Gbps)
MAX3736 toc02
58ps/div
ER = 8.2dB, OC-48 FILTER
231 - 1 PRBS, 1310 FP LASER
ELECTRICAL EYE
(2.488Gbps)
MAX3736 toc03
58ps/div
1870MHz FILTER
223 - 1 PRBS
Typical Operating Characteristics
(Typical values are at VCC= 3.3V, IBIAS= 20mA, IMOD= 30mA, TA= +25°C, unless otherwise noted.)
MAX3736
3.2Gbps, Low-Power, Compact,
SFP Laser Driver
SOURCE
NOISE
VOLTAGE
SUPPLY0.1μF0.1μFOPTIONAL
OPTIONAL
TO LASER
DRIVER VCC
10μF
1μH
HOST BOARD
FILTER DEFINED BY SFP MSA
MODULE
Figure 3. Supply Filter
100mV MIN
1200mV MAX
CURRENT
VOLTAGE
VIN+
VIN-
(VIN+) - (VIN-)
IOUT+
200mVP-P MIN
2400mVP-P MAX
IMOD
Figure 1. Definition of Single-Ended Input Voltage Range
MAX3736
OSCILLOSCOPE
OUT-
OUT+
1.1pF
25Ω26Ω
130ΩIOUT+
30Ω
VCCVCC
50Ω
Figure 2. Output Termination for Characterization
MAX3736
3.2Gbps, Low-Power, Compact,
SFP Laser Driver
SUPPLY CURRENT vs. TEMPERATURE
MAX3736 toc05
TEMPERATURE (°C)
SUPPLY CURRENT (mA)3510-15
EXCLUDES IBIAS AND IMOD
BIAS CURRENT MONITOR GAIN
vs. TEMPERATURE
GAIN (mA/A)
MAX3736 toc06
TEMPERATURE (°C)3510-15-4085
MODULATION CURRENT
vs. MODSET RESISTANCE (ZL = 15Ω)
MAX3736 toc07
RMODSET (kΩ)
MOD
(mA
P-P100
BIAS CURRENT vs. BIAS RESISTANCE
MAX3736 toc08
RBIASSET (kΩ)
IBIAS
(mA)
EDGE TRANSITION TIME
vs. MODULATION AMPLITUDE
IMOD (mA)
EDGE TRANSITION TIME (ps)4030201060
MAX3736 toc09
FALL TIME
RISE TIMEypical Operating Characteristics (continued)
(Typical values are at VCC= 3.3V, IBIAS= 20mA, IMOD= 30mA, TA= +25°C, unless otherwise noted.)
MAX3736
3.2Gbps, Low-Power, Compact,
SFP Laser Driver
Pin Description
PINNAMEFUNCTION
1, 4, 9,
12, 15 VCC +3.3V Supply Voltage. All pins must be connected to VCC.IN+ Noninverted Data Input
3 IN- Inverted Data Input
5 BIASSET A current DAC, a voltage DAC, or a resistor, connected from this pin to ground, sets the desired bias
current for the laser (see the Programming the Laser Bias Current section).
6 MODSET A current DAC, a voltage DAC, or a resistor, connected from this pin to ground, sets the desired bias
current for the laser (see the Programming the Laser Modulation Current section).
7 BC_MON Bias Current Monitor Output. Current out of this pin develops a ground-referenced voltage across an
external resistor that is proportional to the bias current. BIAS Laser Bias Current Output
10 OUT+ Noninverted Modulation Current Output. IMOD flows into this pin when input data is high.
11 OUT- Inverted Modulation Current Output. IMOD flows into this pin when input data is low.
13, 14 GND Ground
16 DIS Transmitter Disable, TTL. Laser output is disabled when DIS is asserted high or left
unconnected. The laser output is enabled when this pin is asserted low.
— EP Exposed Pad. Must be soldered to the circuit board ground for proper thermal and electrical
performance (see the Exposed-Pad Package section).
Typical Operating Characteristics (continued)
(Typical values are at VCC= 3.3V, IBIAS= 20mA, IMOD= 30mA, TA= +25°C, unless otherwise noted.)
DETERMINISTIC JITTER
vs. MODULATION CURRENT
MAX3736 toc10
IMOD (mAP-P)
DJ (ps
P-P40302060
2.7Gbps
223-1 PRBS
DIFFERENTIAL S11 vs. FREQUENCY
MAX3736 toc11
FREQUENCY (GHz)
I (dB)642
010

Partno	Mfg	Dc	Qty	Available	Descript
MAX3736ETE+	N/A	N/a	2500	avai	3.2Gbps, Low-Power, Compact, SFP Laser Driver
MAX3736ETE+T \|MAX3736ETET	MAXIM	N/a	5000	avai	3.2Gbps, Low-Power, Compact, SFP Laser Driver