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LED/PHOTO IC
Red LED/Photo IC for optical link
L7726/S7727
Emitter/receiver for 156 Mbps POF communications
L7726 and S7726 are designed for high-speed POF (Plastic Optical Fiber) communications. Both devices are molded into miniature plastic packages with lenses, allowing easy and efficient coupling to a POF. S7727 uses a monolithic photo IC that ensures high resistance to external noise and high reliability, and provides P-ECL voltage conversion output.
Features
L7726
Applications
home automation, LAN) l Red LED for POF data link l Data transmission in locations subject to high l 650 nm emission suitable for POF communications electromagnetic noise l High-speed response: fc=100 MHz Typ. l High output power: Po= -1.5 dBm (IF=30 mA, 1 mm, POF)
l Plastic optical fiber communications (FA, office machine,
l Photo IC receiver for POF data link l Monolithic structure immune from external noise l Data rates from 4 Mbps to 156 Mbps l P-ECL voltage conversion output (Note: Unlike normal P-ECL output, S7727 output cannot be terminated with 50 9.)
S7727
L7726
I Absolute maximum ratings (Ta=25 C)
Parameter Forward current Power dissipation Operating temperature Storage temperature Soldering Symbol I. Pmax Topr Tstg Value 50 250 *1 0 to 60 -40 to +85 230 C, 5 s, at least 1.5 mm away from package surface Unit mA mW C C -
*1: Derate power dissipation at a rate of 1.7mW/C above Ta=25 C
I Electrical and optical characteristics (Ta=25 C)
Parameter Forward voltage Peak emission wavelength Spectral half width (FWHM) Fiber coupled optical power Cut-off frequency Symbol V. lp Dl Po fc
Condition I.=30 mA I.=30 mA I.=30 mA I.=30 mA *2 I.=30 mA
Min. 640 -
Typ. 2.3 650 10 -1.5 100
Max. 660 -
Unit V nm nm dBm MHz
*2: Measured using a 1-meter long optical fiber (MH4001 made by Mitsubishi Rayon).
Red LED/Photo IC for optical link
S7727
I Absolute maximum ratings (Ta=25 C)
Parameter Supply voltage Output voltage Output current Power dissipation Operating temperature Storage temperature Soldering Symbol Vcc Vo Io Pmax Topr Tstg -
L7726/S7727
Value -0.5 to +7.0 -0.5 to Vcc + 0.5 8 250 *3 -20 to +70 -40 to +85 230 C, 5 s, at least 1.5 mm away from package surface
Unit V V mA mW C C -
*3: Derate power dissipation at a rate of 1.7mW /C above Ta=25 C
I Electrical and optical characteristics (Ta=25 C, Vcc=5.0 V)
Parameter Symbol fD Data rate Condition Bi-phase signal NRZ conversion
*4, *5, *8
Min. 4
Typ. -
Max. 156
Unit Mbps
Current consumption Icc 40 mA High level output voltage Voh Ioh= -1 mA *4, *5, *8 3.9 4.3 V Low level output voltage Vol 2.9 3.4 V Iol= -0.5 mA *4, *5, *8 *4, *5, *6, *7, *8 Minimum overload Pimax -2 dBm *4, *5, *6, *7, *8 Minimum receiver input power Pimin -22 dBm Rise time tr 3 ns *4, *5, *8 10 to 90 % Fall time tf 3 ns *4, *5, *6, *8 Pulse width distortion -3 3 ns DT *4, *5, *6, *8 Jitter 3 ns Dtj *4: Measured with 156 Mbps input signal (Bi-phase signal) *5: A 3 pF capacitor is connected to GND as a capacitive load (including parasitic capacitance such as probes, connectors and evaluation PCB patterns) *6: An optical input waveform is generated with a Hamamatsu standard transmitter. *7: A detectable signal level is an average value, measured using a plastic fiber (MH4001 made by Mitsubishi Rayon). *8: A 3 kW resistor is externally connected between Q and GND and also between QB and GND.
0.4
5.7 0.4
Note) G A bypass capacitor (0.1 F) connected at a position within 2 mm from the lead, and a 4.7 F capacitor is also connected to the power supply line nearby. G The optical axis of the package lens is exactly aligned with the center axis of the optical plug, and the gap between the lens surface and the optical reference plane of the plug is 0.1 mm. G If modulated light at 4 Mbps or less (including DC light and no light input) is input to S7727, the high and low levels cannot be discerned.
I Dimensional outline (unit: mm)
5.2 0.3 (INCLUDING BURR) 5.0 0.97 0.69
1.77
4.5 0.3 (INCLUDING BURR)
1.4
10
4.3
1.8
10 (0.9)
0.25 PIN No. L7726 CATHODE CATHODE ANODE CATHODE
0.5
1.27 1.27 1.27 (SPECIFIED AT THE LEAD ROOT) (0.9) 10 (0.9) S7727 QB GND Q Vcc
(1.5)
(2.15)
10 5.0
Tolerance unless otherwise noted: 0.1, 2 Shaded area indicates burr. Values in parentheses indicate reference value.
KPICA0029EA
Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. (c)2002 Hamamatsu Photonics K.K.
HAMAMATSU PHOTONICS K.K., Solid State Division 1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: (81) 053-434-3311, Fax: (81) 053-434-5184, http://www.hamamatsu.com
U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218 Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 08152-3750, Fax: (49) 08152-2658 France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: 33-(1) 69 53 71 00, Fax: 33-(1) 69 53 71 10 United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777 North Europe: Hamamatsu Photonics Norden AB: Smidesvagen 12, SE-171 41 Solna, Sweden, Telephone: (46) 8-509-031-00, Fax: (46) 8-509-031-01 Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E, 20020 Arese, (Milano), Italy, Telephone: (39) 02-935-81-733, Fax: (39) 02-935-81-741
4.3
Cat. No. KPIC1034E01 Aug. 2002 DN

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