M66512P Mitsumi Electronics, Corp., M66512P Datasheet
M66512P
Available stocks
Related parts for M66512P
M66512P Summary of contents
Page 1
... Current switching circuit GND1 : Power supply pin for analog circuits in IC CC1 V , GND2 : Power supply pin for digital circuits in IC CC2 MITSUBISHI DIGITAL ASSP M66512P/FP LASER-DIODE DRIVER LASER-DIODE DRIVER LASER CURRENT LOAD OUTPUT LASER DIODE OUTPUT GND2 MONITORING DIODE INPUT ...
Page 2
... Power supply for internal analog circuits. Connect to positive power source (+5V) Power supply for internal digital circuits. Connect to positive power source (+5V) GND for internal analog circuits GND for internal digital circuits MITSUBISHI DIGITAL ASSP M66512P/FP LASER-DIODE DRIVER Functions ) of current source 1. L1 setting current source 2 ...
Page 3
... L1 at the CO pin in TTL level. =60mA =30mA Vref Condition V V =30mA A Schematic Diagram of Monitor Circuits MITSUBISHI DIGITAL ASSP M66512P/FP LASER-DIODE DRIVER ) proportional compared M (1.4V typ.) by the ref _ MO output + Buffer amp + CO output _ Comparator CO output <V “L” M ref > ...
Page 4
... Laser ON (DATA =“L” and 5. 120 ON (2) Laser OFF (DATA =“H” and 5.25 + 120 OFF , V , CC1 CC2 and GND2. MITSUBISHI DIGITAL ASSP M66512P/FP LASER-DIODE DRIVER (RO) (LD) (LD) OL(CO) OL(CO) = 5.25V 2.75V (RO) ...
Page 5
... Laser current Drive current pulse Conditions L2 OFF Output: “H” For single integrated circuit; Ta=25˚C (Note 1) IC Measured being mounted; Ta=25˚C (Note 2) Conditions MITSUBISHI DIGITAL ASSP M66512P/FP LASER-DIODE DRIVER Laser output 0~60mA 0~30mA 0~30mA Ratings Unit –0.5 ~ +7.0 V –0 – ...
Page 6
... RM=1k (Note |=1mA (Note Voltage | I |=0.2mA (Note 7) PD Voltage LD Current I =60mA, I =0mA (Note 8) OFF LD(H) LD(L) Voltage LD Current I =60mA, I =0mA (Note 8) OFF LD(H) LD(L) MITSUBISHI DIGITAL ASSP M66512P/FP LASER-DIODE DRIVER Limits Unit Min. Typ.* Max 0 –1.8 V –1 2.7 V 0.4 V 0.5 V –2 ...
Page 7
... I LD 1RM RM 2RM TIMING CHART 50 RP2, t RP3 I LD(H) MO,CO I LD( TIMING CHART 5V Oscilloscope (output) V OFF 1.5V Current probe t OFF M66512P/FP LASER-DIODE DRIVER Oscilloscope RO (input) Current probe DATA P. =6ns Oscilloscope MO (output) GND Other pins are opend I PD( 50% I PD(T PD(L) ...
Page 8
... RC1 3 Max.60mA 1RC 4 Consttant current V L2 source(I RC2 5 Max.30mA 2RC Consttant current source(I RC3 Max.30mA 7 3RC Current switching circuit MITSUBISHI DIGITAL ASSP M66512P/FP LASER-DIODE DRIVER DATA STREAM DATA DATA INPUT CONTROL SIGNAL V OFF LASER CURRENT FORCED OFF V CC1 V CC2 GND1 GND2 ...
Page 9
... CURRENT SETTING INPUT VOLTAGES V MO OUTPUT VS. MONITORING CURRENT MONITORING CURRENT I LASER CURRENT VS. RC3 RESISTANCE 0 ( OUTPUT VS. MONITORING CURRENT RM= 1 (mA) MONITORING CURRENT I PD MITSUBISHI DIGITAL ASSP M66512P/FP LASER-DIODE DRIVER 0.4 0.6 0.8 1.0 1.2 RC3 RESISTANCE (k ) RM=1k 1.2 1.4 1.6 1.8 2.0 (mA ...
Page 10
... F 8 GND1 1RM 2RM NC 11 Evaluation Circuit 10Mbit 50ns/div) 25Mbit 20ns/div) MITSUBISHI DIGITAL ASSP M66512P/FP LASER-DIODE DRIVER ML44114N Light intensity meter 100 300pF Oscilloscope (laser light output Optimum values of R and may vary depending on the kind of the laser in use and the pattern of the printed board ...