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| 3.3 V Laser Diode Driver F0530602B 02.08.08 Features * Up to 1.3 Gb/s high speed operation * 3.3 V single power supply * Up to 35 mA p-p modulation current * Up to 35 mA bias current * Maximum bias current preset control F0530602B 3.3V Operation Laser Diode Driver Applications * Laser diode driver of an optical transmitter circuit for SDH (STM4) / SONET (OC-12) Functional Description The F0530601B is a high performance GaAs integrated laser diode driver for use in an optical transmitter circuit up to 1.3 Gb/s NRZ data rate. The F0530601B typically specifies rise time and fall time of 300 psec (20 % - 80 %,25 load). It features a low power 3.3 V supply operation, 1 to 35 mA presettable bias current and up to 35 mA modulation current. 3.3 V Laser Diode Driver Absolute Maximum Ratings F0530602B Ta=25 C, unless specified Parameter Supply Voltage Supply Current Modulation Current Bias Current Input Voltage Junction Operating Temperature Storage Temperature Symbol VDD , VSS Ickt Iout Ioutbi Vin Tj Tstg Value - 0.2 to 4.0 150 70 70 VSS to VDD+0.5 0 to +140 -55 to +150 Units V mA mA mA V C C Recommended Operating Conditions Ta=25 C , VDD=0 V, VSS=-3.3 V, unless specified Value Parameter Supply Voltage Output Voltage Input Voltage Vreg Junction Operating Temperature Symbol Min. VDD- VSS Vout Vreg Tj 3.135 VDD -1.6 VSS +1.86 0 Typ. 3.3 VDD -1.0 OPEN 25 Max. 3.465 VDD VSS +2.12 125 V V V C Units 3.3 V Laser Diode Driver Electrical Characteristics F0530602B Ta=25 C, VDD-VSS=3.135 ~ 3.465V, unless specified Value Parameter Supply Current Input Voltage (for TD,TDB) Input Current IIL Input Resistance Input Bias Voltage Ri VIB IMMAX Modulation Current IMMIN IMDIS IBMAX Bias Current IBMIN IBDIS Input Voltage for Disable Resistance for Bias Monitor Monitor Voltage of Mark Ratio Rise time Fall time VDISIH VDISIL RBM VMRK tr tf Differential Output RL=25, 20%-80% RL=25, 20%-80% Symbol Ickt VIH VIL IIH VIH=VDD-0.7V VIL=VDD-1.9V DC, VDD=VSS=GND VDD-VSS=3.3V Test Conditions Min. IMOD, IBIAS are excluded Differential Input VDD-1.17 VDD-1.95 -100 -100 1 VDD-1.17 Units Typ. 35 VDD-0.8 VDD-1.8 1.3 VDD-1.3 Max. 50 VDD-0.73 VDD-1.45 100 100 VDD-1.43 mA V V A A k V mA mA mA mA mA mA V V V ps ps VDIS=OPEN VDIS=OPEN VDIS=VDD-0.2V VDIS=OPEN VDIS=OPEN VDIS=VDD-0.2V Disable Operation Enable Operation 35 35 VDD-2 VSS - OPEN 10 0.9 300 300 5 0.5 5 0.5 VDD VSS+0.2 - 3.3 V Laser Diode Driver Block Diagram MRKOUT TDb Bias Circuit MRKOUTB F0530602B TD + Input Buffer - + Output Buffer Mod. Circuit OUT TDB OUTTB OUTBIAS VM TDBb Bias Circuit BMP Into Circuit Control Circuit Bias Circuit BMN Vreg Disable VB Die Pad Description TD TDB TDb TDBb OUT OUTB OUTBIAS VM VB Disable Vreg BMP BMN MRKOUT MRKOUTB Data Input (pos.) Data Input (neg.) Input Bias (pos.) Input Bias (neg.) Modulation Current Output (pos.) Modulation Current Output (neg.) Bias current Output Modulation Current Control Bias Current control Current Shutdown Control Reference Voltage Bias Current Monitor (pos.) Bias Current Monitor (neg.) Mark ratio Monitor (pos.) Mark ratio Monitor (neg.) 3.3 V Laser Diode Driver Die Pad Assignments F0530602B 21 20 19 18 17 16 15 14 13 22 12 23 11 24 10 1 2 3 4 5 6 7 8 9 No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Symbol BMN BMP OUTBIAS OUT VSSmod OUTB VDD TEMP VSS TEMP VM VB MARKOUTB MARKOUT Disable ALMIN Center Coordinates (m) (80,80) (240,80) (400,80) (560,80) (720,80) (880,80) (1040,80) (1200,80) (1360,80) (1360,265) (1360,445) (1360,625) (1360,810) (1200,810) No. 15 16 17 18 19 20 21 22 23 24 Symbol ALMINB Vreg VSS TD TD (bias) TDB TDB (bias) TD VDD VSSbias Center Coordinates (m) (1040,810) (880,810) (720,810) (560,810) (400,810) (240,810) (80,810) (80,625) (80,445) (180,265) O A (0,0) (1440,890) 3.3 V Laser Diode Driver Test Circuits F0530602B OUT TD DC Source/ Monitor Unit TDB OUTB OUTBIAS VM DC Source/ Monitor Unit DUT TDb VB TDBb VSS VSSmod VSSbias Probing System 3.3 V Laser Diode Driver Typical DC Characteristics (1) Switching Characteristics (a) Modulation Current Switching IO (mA) 80.00 F0530602B VM=-2.2V VM=-2.3V VM=-2.4V Output Current Iout (mA) 8.000 /div VM=-2.5V VM=-2.6V VM=-2.7V VM=-2.8V .0000 -1.800 VTD .1000/div (v) -.8000 Input Voltage VIN1 (V) (VSS=-3.3V, TDB=-1.3V, VB=-2.6V) (b) Output Current Switching IO (mA) 80.00 VB=-2.2V VB=-2.3V VB=-2.4V 8.000 /div Output Current Iout (mA) VB=-2.5V VB=-2.6V VB=-2.7V VB=-3.3V .0000 -1.800 VTD .1000/div (v) -.8000 Input Voltage VIN1 (V) (VSS=-3.3V, TDB=-1.3V, VM=-2.5V) 3.3 V Laser Diode Driver (2) Modulation Current Control IO (mA) F0530602B Modulation Current IM(mA) 80.00 8.000 /div .0000 -3.500 .1500/div Control Voltage VM(V) (v) -2.000 (VSS=-3.3V, TD=-1.0V, TDB=-1.6V, OUTBIAS,VB: open) (3) Bias Current Control IO (mA) 80.00 Bias Current IB (mA) 8.000 /div .0000 -3.500 .1500/div Control Voltage VB (V) (v) -2.000 (VSS=-3.3V, TD, TDB,VM : open, OUT : open) 3.3 V Laser Diode Driver (4) The Dependence of Modulation Current on the ambient temperature F0530602B 80 70 60 VM=-2.4V 50 VM=-2.2V VM=-2.3V IM (mA) 40 30 20 VM=-2.5V VM=-2.6V VM=-2.7V 10 0 -40 -20 0 20 40 60 80 100 Ambient Temperature (C) (VSS=-3.3V, TD=-1.0V, TDB=-1.6V, VB, OUTBIAS: open) Electron Device Department |
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