TEC940525 HOLOGRAM LASER LT0H34P Hologram Laser(3 beam) for MD players/recorders ■ ■ Features (1) Compact package with high power output (MAX. 35mW) (Unit: mm) Outline Dimensions φ 8.2 4.8 0.25MIN. 0.25MIN. (2) Enables to design compact pick-up thanks to compact package. (Thickness; 4.8mm) φ 6.63 Hologram grass 3.97 3.2 1.27 LD chip 0.3 MAX. 4.77 0.25 Reference surface 1.2 (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 2.0 Cap glass 4.6 (4) The adjustment during pickup assembly is eased and can easily be automated. 10 - φ0.4 Applications (1) MD players/recorders P1.4 ± 0.2 X 3 = 4.2 ± 0.2 2 3 4 5 9 8 7 4.8 1 10 2.8 ■ φ 8.2 6 4.9 [Terminal connection] LT0H34P 10 1 Monitor PD Laser diode 5 2 G 9: NC ■ D1 3 D2 4 D3 6 D4 8 D5 7 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 *1 Output power from hologram laser *2 Case temperature *3 At the position of 1.6mm from the bottom face of resin package. ˚C ˚C ˚C (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 ■ Electro-optical Characteristics (Tc=25˚C) Parameter Threshold current Operating current Operating voltage Wavelength *2 Monitor current Laser Monitor Photodiode Photodiode for signal detection Symbol Condition Ith Iop Vop PH=27.4mW *1 λp PH=27.4mW *1,VR=5V Im Parallel θ// Radiation Angle PerpenCharacteristics θ⊥ dicular PH=27.4mW *1 ∆φ // Angle ∆φ ⊥ Emission Point ∆x accuracy Positon ∆y ∆z 18.3mW Differentioal efficiency η Iop(27.4mW) - Iop(9.1mW) Dark current Terminal capacitance Id Ct VR=5V Reverse voltage VR IR=10µA Dark current Id VR=1.5V Terminal capacitance Ct VR=1.5V,f=1MHz Short circuit current *3 *4 Isc Ev=1000Lx Response time *5 tr,tf VR=1.5V, RL=180Ω A B C A B C A B C A B C A B C MIN 770 - TYP 60 125 1.8 785 0.14 11 26 - 0.25 0.5 0.85 mW/mA - 20 150 - nA pF 15 - - V - - 10 nA 1.0 - 8 0.6 - 6 120 40 60 - 210 80 115 - 660 - - 660 *1 Output power form LD chip *2 Oscillation mode: TEM00 *7 *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. Laser diode λ=780nm Input 50% Input Output RL =180Ω VR=1.5V 95% Output tr 5% tf MAX 80 150 2.2 800 ±1 ±3 ±30 ±30 ±80 Units mA mA V nm mA ˚ ˚ ˚ ˚ µm µm µm pF nA ns Applicabledivisions correspond to pattern segment No. D1 D2 D3 D5 D4 Segment No. D1,D5 ••••••• A D2,D3 ••••••• B D4 ••••••••••• C Fig.1 TEC S 940101 LT0H34P ■ 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 5µAp-p RES Output amplitude (D1-D5) *5 Radial error balance *6 MIN -0.4 10 5 0.3 -20 TYP 0 19 10 0.55 - MAX +0.4 30 1.0 20 (Tc=25˚C) Units µm µm µA p-p µA p-p % D1,D2,D3,D4,D5: Refer to pattern segment No. (Fig.1) *1 Measuring method is shown below. C.L. Sharp's Actuator TCD-782 Driver (A-BEX) APC HL NA=0.17 NA=0.45 f=10.74mm f=3.4mm Measuring method of electro-optical characteristics *2 Distance between FES=0 and jitter Min. point *3 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 Disk Laser (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 3µAp-p of FES output amplitude 3µAp-p of the FES output amplitude is set through focusing oscillation