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| Hologram Unit HUL7203 Hologram Unit For optical information processing Features Smaller package size achieved through micro-mirror integration (4.8 x 8.2 x 4.3 mm) 2.55 0.25 Lead frame 3.0 Index mark for No.1 pin on reverse side 11.2 8.2 o8.0* 1 2 3 4 5 6 (0.2) (0.5) 4.80.1 0.8x5=4.0 Unit : mm (0.3) (0.35) 4.33 2.55 O Y Reference plane 12 11 10 X 9 8 7 Fast response (fC = 35 MHz) Focus error signal detection : SSD method Tracking error signal detection : 3 beam method Low-power semiconductor laser included Reference plane Apparent emitting point Apparent emitting point Reference plane ,, ,,,, ,,,, , 8.1 Applications CD-ROM drives (supports 20- to 24-time speed CD-ROM drives) SEC. X-O-Y (Note): 1.Standard corner R=0.20 max. 2.Tolerance unless otherwise specified is 0.2 3.Thickness of plate:Ni 1m min.+Au 0.1m min. 4.Thickness of hologram=2.0mm, n=1.519 5.Tolerance of dimension with *(asterisk) is +0/-0.05 Absolute Maximum Ratings (Ta = 25C) Parameter Laser beam output*1 Reverse voltage Supply voltage Operating ambient temperature Storage temperature *1 Symbol PO VR(LD) VR(mon) VR Topr Tstg Ratings 0.3 2 6 6 - 10 to +60 - 40 to +85 Unit mW V V V C C Laser Monitor Light emitting output through objective lens Electro-Optical Characteristics (Ta = 25C) Parameter Laser beam output*1 Operating current Operating voltage Oscillating wavelength Focus error signal amplitude Tracking error signal amplitude Focus error signal pull-in range Frequency characteristics (-3 dB) *1 Symbol PO IOP VOP L VFE VTE DFE fC CW Conditions CW VRF = 570mV, VCC = 5V CW VRF = 570mV, VCC = 5V CW VRF = 570mV, VCC = 5V CW VRF = 570mV, VCC = 5V CW VRF = 570mV, VCC = 5V CW VRF = 570mV, VCC = 5V min 25 775 340 190 9 30 0.50 0.78 1.33 typ 0.18 35 1.9 795 480 310 12 35 Light emitting output through objective lens ,,,, , ,,, , SEC. X-O-Y 4.70.1 max 0.25 40 2.4 815 620 430 16 Unit mW mA V nm mV mV m MHz 4.7 1 Hologram Unit HUL7203 Block Diagram of Circuit Functions 2 1 12 3 Pmon + - P2 P4 P3 P7 P9 LD 11 + - 4 10 5 P8 P1 - + BAND GAP Reg. P6 9 P5 P10 - + 6 8 7 1: GND 2: Mon. out 3: N.C. 4: (P2+P4+P8) out 5: VC 6: (P1+P6) out 7: GND 8: (P5+P10) out 9: VCC 10: (P3+P7+P9) out 11: LD (+) 12: LD (-) I -- L , I --V 2.0 = I--L = I--V 1.5 PO (mW) , VOP (V) 1.0 0.5 0.0 0 10 20 30 40 50 IOP (mA) 2 |
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