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| TEC940525 HOLOGRAM LASER Hologram Laser(3 beam) for MD players/recorders s Features (1) Compact package with high power output (MAX. 35mW) (2) Enables to design compact pick-up thanks to compact package. (Thickness; 4.8mm) (3) Since its semiconductor laser, signal detection photocell, and circuit array are assembled in a package, the optical pick is simple in assembling and adjustment (4) The adjustment during pickup assembly is eased and can easily be automated. s LT0H34P Outline Dimensions 8.2 (Unit: mm) 4.8 0.25MIN. 0.25MIN. 6.63 Hologram grass Cap glass 3.97 3.2 0.25 2.0 4.77 Reference surface 10 - 0.4 s Applications (1) MD players/recorders 10 8.2 P1.4 0.2 X 3 = 4.2 0.2 1 2 3 4 2.8 9 8 7 6 4.9 [Terminal connection] LT0H34P 10 Laser diode 5 2 G 9: NC 1 Monitor PD D1 3 4 D2 6 4.8 5 4.6 1.2 D3 8 0.3 MAX. 1.27 LD chip D4 7 D5 s Absolute Maximum Ratings Parameter Optical power output *1 Laser Reverse Monitor photodiode voltage Photodiode for signal detection Operating temperature *2 Storage temperature *2 Soldering temperature *3 Symbol PH VR Topr Tstg Tsol Ratings 32 2 30 15 -10 to +60 -40 to +85 260(5s or less) Units mW V C C C *1 Output power from hologram laser *2 Case temperature *3 At the position of 1.6mm from the bottom face of resin package. (Notice) * In the absence of device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP devices shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP device. * Specifications are subject to change without notice for improvement. (Internet) * Data for Sharp's optoelectronic/power devices is provided for internet. ( Address http://www.sharp.co.jp/ecg/) TEC940525 LT0H34P s Electro-optical Characteristics Symbol Condition Ith Iop Vop PH=27.4mW *1 p PH=27.4mW *1,VR=5V Im Parallel // Radiation Angle PerpenCharacteristics dicular PH=27.4mW *1 // Angle Emission Point x accuracy Positon y z 18.3mW Differentioal efficiency Iop(27.4mW) - Iop(9.1mW) Dark current Terminal capacitance Reverse voltage Id Ct VR VR=5V IR=10A A B C A B C A B C A B C A B C Parameter Threshold current Operating current Operating voltage Wavelength *2 Monitor current MIN 770 0.25 15 TYP 60 125 1.8 785 0.14 11 26 0.5 20 MAX 80 150 2.2 800 1 3 30 30 80 (Tc=25C) Units mA mA V nm mA m m m Laser 0.85 mW/mA 150 nA pF V Monitor Photodiode Dark current Photodiode for signal detection Id VR=1.5V 1.0 0.6 120 40 60 *7 210 80 115 - 10 8 6 660 660 nA Terminal capacitance Ct VR=1.5V,f=1MHz pF Short circuit current *3 *4 Isc Ev=1000Lx nA Response time *5 tr,tf VR=1.5V, RL=180 ns *1 Output power form LD chip *2 Oscillation mode: TEM00 *3 Values in each element. Elements other than subject elemens shall be measured while the anode and the cathode are short-sircuited to each other *4 Short-circuit currents between segments D1 and D5 or D3 and D4 shall be within 10% of the average *5 Ev:Illuminance by CIE standard light source A(tungsten lamp) *6 Measuring method is shown below. Applicabledivisions correspond to pattern segment No. D1 D2 D3 D5 D4 Segment No. D1,D5 ******* A D2,D3 ******* B D4 *********** C Laser diode =780nm Input Input Output RL =180 VR=1.5V Output 50% 95% 5% Fig.1 tr tf TEC S 940101 LT0H34P s Electro-optical Characteristics *1 Parameter Condition Focus error signal offsetting *2 Lead-in for focus error signal *3 Values at RF Output amplitude (D2+D3+D4)*4 FES output amplitude 5Ap-p RES Output amplitude (D1-D5) *5 Radial error balance *6 D1,D2,D3,D4,D5: Refer to pattern segment No. (Fig.1) *1 Measuring method is shown below. C.L. Laser Driver APC HL NA=0.17 f=10.74mm NA=0.45 f=3.4mm Sharp's Actuator MIN -0.4 10 5 0.3 -20 TYP 0 19 10 0.55 - MAX +0.4 30 1.0 20 (Tc=25C) Units m m A p-p A p-p % Disk TCD-782 (A-BEX) Measuring method of electro-optical characteristics *2 *3 Distance between FES=0 and jitter Min. point FES b c a *4 Focus/radial servo is ON-state *5 RES output amplitude: under the condition that only focus servo is effected *6 (a - b) / 2 a+b RES a GND b Factors *2 to *6 are measured with high-reflection disk (TCD782 made by A-BEX) at 3Ap-p of FES output amplitude 3Ap-p of the FES output amplitude is set through focusing oscillation |
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