Under development New product LT0H49L/T Compact Hologram Laser Compact Hologram Laser(3-beam) for 16X Speed CD-ROM Drive Outline Dimensions Features (1) Built-in high speed(TYP.30MHz) OPIC* for 16X speed CD-ROM drive (2) Enables to design compact pick-up thanks to compact package (Thickness: 4.8mm) (3) Voltage output type (Needless of external noise solution) (4) Low current operation type (Operating current : TYP. 36mA) (Unit:mm) ø8.2 4.8 0.25MIN. 0.25MIN. ø 6.63 Hologram glass 3.97 3.2 1.27 LD chip 1.2 Reference surface 4.6 Applications CD-ROM drives 0.3 MAX. 4.77 0.25 2.0 Cap glass 10 -ø0.4 ø 8.2 Model Name • LT0H49L----Single power supply • LT0H49T----Dual power supply P1.4X3=4.2 3 4 5 9 *OPIC: OPIC (Optical IC) is a trademark of the SHARP Corporation. An OPIC consists of a light-detecting element and signal-processing circuit integrated onto a single chip. 8 7 4.8 2 2.8 1 10 6 4.9 [Terminal connection] D2 D3 D4 D1 D5 8 Vcc 4 VA 6 VB 2 VC 3 VE 7 VF 9 1/2Vcc 5 GND 10 LD 1 Monitor PD (LT0H49L) 1 Monitor PD (LT0H49T) Model Name Parameter *1 Optical power output Reverse Laser voltage Monitor photodiode OPIC supply voltage *2 Operating temperature *2 Storage temperature *3 Soldering temperature (Notice) Symbol PH VR V CC Topr Tstg Tsol (Tc=25˚C) Ratings Unit 4.3 mW 2 30 V 6 -10 to +70 ˚C -40 to +85 260(5s or less) *1 Output power from hologram laser *2 Case temperature *3 At the position of 1.6mm from the bottom face of resin package • In the absence of device specification sheets, SHARP takes no responsibility for any defects that may occur in equipment using any SHARP d shown in catalogs, data books, etc. Contact SHARP in order to obtain the latest device specification sheets before using any SHARP dev • 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/) As of January 1997 Tec.970101 LT0H49L/T Electro-optical Characteristics Parameter Symbol Conditions Threshold current Ith Operating current Iop Operating voltage Vop PH =2.7mW Wavelength p Laser LT0H49L Im PH=2.7mW, VR=15V Monitor current LT0H49T x Emission point y Accuracy(position) z 1.8mW Differential efficiency Iop(2.7mW)-Iop(0.9mW) Sensitivity(*) S Monitor Dark current ID V R=15V photodiode Terminal capacitance Ct Operating supply voltage Vcc Collector current Icc Vcc=5V OPIC for Output off-set voltage V OD Difference from Vcc/2 signal Extremes of off-set voltage V OD Vcc=5V, No light detection fc Vcc=5V,-3dB (*3) Response frequency*2 fc R Vcc=5V,-3dB * Sensitivity for output power from hologram laser *1 Applicable divisions correspond to pattern segment No. (Vcc=5V, Tc=25˚C) MIN. TYP. MAX. 25 36 1.75 770 780 0.06 0.28 0.12 0.55 - 80 - 80 - 80 0.17 39 45 2.2 795 0.50 1.00 80 80 80 Unit mA mA V nm Remarks*1 mA m m m 0.27 0.55 mW/mA 0.10 9 4.5 2.0 4.5 -25 0 -15 0 24.0 30.0 1.0 2.0 mA/mW 150 nA pF 5.5 V 9.0 mA 25 mV 15 mV MHZ MHZ V A~F V A -V B,V E-V F V A ,VB,VC V E,VF Terminal No. D1 D2 D3 D5 D4 Fig.1 D1 D2 VE VA D3 VB D4 VC D5 VF *2 Output amplitude = 0dB(input signal 100MHz) *3 fCF=(fc(VA)+fc(VB)+2fC(VC))/4 Note)Please attach bypass capacitor at the position of 1cm or less from pins (between Vcc and GND, GND and 1/2Vcc). [Ex.] Vcc Hologram laser + 0.022µF 10µF 0.022µF 10µF GND 1/2Vcc + - As of January 1997 Tec.970101 LT0H49L/T Electro-optical Characteristics*1 Parameter Symbol Focus error signal offsetting*2 Focus error balance*3 Radial error balance*4 RF output amplitude*5 V RF Focus error signal output amplitude*6 Radial error signal output amplitude Condition VRF=0.55V VRF=0.55V PO=3.0mW PO=3.0mW VRF=0.55V VRF=0.55V MIN. 0.5 20 20 0.38 0.23 0.08 Vcc=5V,Tc=25 TYP. MAX. Unit µ m 0.5 % 20 % 20 V p-p 0.9 V p-p 0.35 0.47 0.12 V p-p 0.16 V A ,VB,VE,VF : Refer to pattern segment No.(Fig.1). *1 Measuring method is shown below. C.L Actuator Laser Disk (SONY:YEDS-18) Driver APC HL NA=0.11 NA=0.50 f=20.6mm f=4.5mm Measuring method of electro-optical characteristics *2 Distance between FES=0 and jitter Min. point *3 (a - b) / (a + b) A *4 ( + amplitude of FES) B ( - amplitude of FES) a ( + amplitude of RES ) b ( - amplitude of RES ) (a-b) 2X(a+b) GND *5 Amplitude of VA + VB + 2VC, focus/radial servo is ON-state. *6 VB-VA at focus rocking condition *7 VE-VF under the condition that only focus servo is effected. As of January 1997 Tec.970101