Hologram Unit HUL7203 Hologram Unit Unit : mm Index mark for No.1 pin on reverse side Y (0.2) (0.5) 2.55 0.25 Lead frame 3.0 Fast response (fC = 35 MHz) Tracking error signal detection : 3 beam method Reference plane Apparent emitting point SEC. X-O-Y Apparent emitting point Reference plane ,,,,,,,, ,,, Focus error signal detection : SSD method Reference plane 4.7 O ,,,,,, ,,, (4.8 × 8.2 × 4.3 mm) 12 11 10 X 9 8 7 4.7±0.1 micro-mirror integration 1 2 3 4 5 6 4.33 2.55 0.50 0.78 1.33 4.8±0.1 0.8×5=4.0 Features Smaller package size achieved through (0.3) 11.2 8.2 ø8.0* (0.35) For optical information processing 8.1 Low-power semiconductor laser included 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 1µm min.+Au 0.1µm min. 4.Thickness of hologram=2.0mm, n=1.519 5.Tolerance of dimension with *(asterisk) is +0/–0.05 Applications CD-ROM drives (supports 20- to 24-time speed CD-ROM drives) Absolute Maximum Ratings (Ta = 25˚C) Parameter Symbol Ratings Unit PO 0.3 mW Laser VR(LD) 2 V Monitor VR(mon) 6 V Laser beam output*1 Reverse voltage *1 Supply voltage VR 6 V Operating ambient temperature Topr – 10 to +60 ˚C Storage temperature Tstg – 40 to +85 ˚C Light emitting output through objective lens Electro-Optical Characteristics (Ta = 25˚C) Parameter Laser beam output*1 Conditions PO CW Operating current IOP CW VRF = 570mV, VCC = 5V Operating voltage VOP CW VRF = 570mV, VCC = 5V Oscillating wavelength λL CW VRF = 570mV, VCC = 5V Focus error signal amplitude VFE CW VRF = 570mV, VCC = 5V Tracking error signal amplitude VTE Focus error signal pull-in range DFE Frequency characteristics (–3 dB) *1 Symbol fC min 25 typ max Unit 0.18 0.25 mW 35 40 mA 1.9 2.4 V 775 795 815 nm 340 480 620 mV CW VRF = 570mV, VCC = 5V 190 310 430 mV CW VRF = 570mV, VCC = 5V 9 12 16 µm 30 35 MHz Light emitting output through objective lens 1 Hologram Unit HUL7203 Block Diagram of Circuit Functions 2 1 12 LD 3 11 Pmon + + 4 – 5 P2 P3 P4 P7 P8 P9 P1 P5 P6 P10 10 – 9 – 6 – + 8 + 7 BAND GAP Reg. 1: GND 2: Mon. out 3: N.C. 4: (P2+P4+P8) out 5: VC 6: (P1+P6) out I — L , I —V 2.0 = I—L = I—V PO (mW) , VOP (V) 1.5 1.0 0.5 0.0 0 10 20 30 IOP (mA) 2 40 50 7: GND 8: (P5+P10) out 9: VCC 10: (P3+P7+P9) out 11: LD (+) 12: LD (–)