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| Under development New product LT0H49L/T 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) Applications CD-ROM drives Compact Hologram Laser Outline Dimensions o8.2 0.25MIN. o 6.63 Hologram glass Cap glass Compact Hologram Laser(3-beam) for 16X Speed CD-ROM Drive (Unit:mm) 4.8 0.25MIN. 3.97 3.2 0.25 2.0 4.77 Reference surface 10 -o0.4 Model Name * LT0H49L----Single power supply * LT0H49T----Dual power supply 10 o 8.2 P1.4X3=4.2 1 2 3 4 2.8 9 8 7 6 *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. 4.9 [Terminal connection] 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) D2 D3 D4 D1 D5 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 VCC Topr Tstg Tsol (Tc=25C) 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. * Data for Sharp's optoelectronic/power devices is provided for internet. ( Address http://www.sharp.co.jp/ecg/) (Internet) 4.8 5 4.6 1.2 0.3 MAX. 1.27 LD chip 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 VR=15V photodiode Terminal capacitance Ct Operating supply voltage Vcc Collector current Icc Vcc=5V OPIC for Output off-set voltage VOD Difference from Vcc/2 signal Extremes of off-set voltage VOD Vcc=5V, No light detection Vcc=5V,-3dB (*3) Response frequency*2 fc fc R Vcc=5V,-3dB * Sensitivity for output power from hologram laser *1 Applicable divisions correspond to pattern segment No. Terminal No. D1 D2 D3 D5 D4 D1 D2 D3 D4 D5 VE VA VB VC VF (Vcc=5V, Tc=25C) 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 mA m m m Remarks*1 0.27 0.55 mW/mA mA/mW 150 nA pF 5.5 V 9.0 mA 25 mV 15 mV MHZ MHZ 0.10 9 4.5 2.0 4.5 -25 0 -15 0 24.0 30.0 1.0 2.0 VA~F VA-VB,VE-VF VA,VB,VC VE,VF Fig.1 *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.] Hologram laser Vcc 0.022F 10F + + - GND 0.022F 10F 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 VRF 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 m 0.5 % 20 % 20 V p-p 0.9 V p-p 0.35 0.47 0.12 V p-p 0.16 VA,VB,VE,VF : Refer to pattern segment No.(Fig.1). *1 Measuring method is shown below. C.L Laser Driver APC HL NA=0.11 f=20.6mm Actuator Disk (SONY:YEDS-18) NA=0.50 f=4.5mm Measuring method of electro-optical characteristics *2 Distance between FES=0 and jitter Min. point *3 (a - b) / (a + b) A B *4 (a-b) 2X(a+b) ( + amplitude of FES) ( - amplitude of FES) a GND b ( + amplitude of RES ) ( - amplitude of RES ) *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 |
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