NJW4710 JRC, NJW4710 Datasheet
NJW4710
Related parts for NJW4710
NJW4710 Summary of contents
Page 1
... Laser Diode Driver for Blue Laser Diode GENERAL DESCRIPTION NJW4710 is a laser diode driver for the operation of a grounded blue laser diode suited to drive a blue laser diode, because it is operated by split power supply. It includes 4 channels current amplifiers for 4 different optical power levels. An on-chip RF oscillator is provided to reduce laser mode noise during read mode ...
Page 2
... NJW4710 www.DataSheet4U.com ABSOLUTE MAXIMUM RATINGS(Ta=25 C) PARAMETER Supply Voltage 1 Supply Voltage 2 Input Voltage Power Dissipation Operating Temperature Range Storage Temperature Range RECOMMENDED OPEARATING CONDITION(Ta=25 C) PARAMETER SYMBOL Operating Voltage1 Operating Voltage2 ELECTRICAL CHARACTERISTICS DC CHARACTERISTICS(Vcc1=5V,Vcc2=9V,ENABLE=H,OUTEN=H,OSCEN=L H:5V,L:GND, Ta=25 C) PARAMETER SYMBOL Supply Current 1 ...
Page 3
... Ton OUTEN 50 Iout 50% Toff OUTEN 50 Iout 50% Tdis ENABLE 50 Iout 50% Ten ENABLE 50 Iout 50%, Tdiso OSCEN Iout 50% Teno OSCEN Iout 50%, fOSC Rfreq=3.6k Ino Iout=40mA,CHR only NJW4710 MIN. TYP. MAX. UNIT MA 80 110 140 / ...
Page 4
... NJW4710 www.DataSheet4U.com Iout Control ENABLE OUTEN2 L/OPEN X H H/OPEN Oscillator Control ENABLE OSCEN L/OPEN X H L/OPEN H H Timing Diagram ENABLE OUTEN2 OUTEN3 OUTEN4 tr Iout Ten Ton Toff - 4 - Ver.2 OUTEN3 OUTEN4 X X H/OPEN H/OPEN H/OPEN H/OPEN L H/OPEN L L OUTEN2 ...
Page 5
... Iin4 0. 10u TTL/CMOS TTL/CMOS TTL/CMOS Ver.2 GND GND 1 IinR Vcc2 2 GND Vcc2 3 Iin2 Iout 4 Rfreq Iout 5 GND Iin3 6 0.1u Iin4 Ramp 7 Vcc1 ENABLE 8 OUTEN2 OSCEN 9 OUTEN3 Vcc2 10 OUTEN4 Vcc2 11 GND GND 12 NJW4710 5. CMOS 16 TTL/CMOS 10u ...
Page 6
... NJW4710 www.DataSheet4U.com TERMINAL EXPLANATION Pin No. Pin Name GND IinR 4 Iin2 5 Rfreq 6 Iin3 7 Iin4 8 Vcc1 9 OUTEN2 10 OUTEN3 11 OUTEN4 14 15 Vcc2 OSCEN 17 ENABLE 18 Ranp 20 Iout 21 *Please set up Low voltage not less than GND-0.3V ,and High voltage of each control terminal (ENABLE, OUTEN 2, 3, and 4, OSCEN) does not exceed Vcc1+0 ...
Page 7
... Rin(input resistance of IC) is CH-R:2.5kohm,CH-2/3/4:500ohm. Set up for internal Oscillator NJW4710 contained in the oscillator for the light power change reduction by the return light noise of laser. The quality of reading improves by operating oscillator and output it. In this oscillator, oscillation frequency can be set up by connect resistance with a Rfreq(5pin) between GND. ...
Page 8
... NJW4710 www.DataSheet4U.com Frequency/Amplitude vs. Rfreq 800 700 600 Frequency 500 400 300 200 100 Rfreq (K ohm) Oscillation frequency/Amplitude vs. Resistance for set up frequency - 8 - Ver.2 Ramp=5K 800 160 700 140 600 120 500 100 400 80 Amplitude 300 60 200 40 100 ...
Page 9
... Ver NJW4710 0 ~ 10° [CAUTION] The specifications on this databook are only given for information , without any guarantee as regards either mistakes or omissions. The application circuits in this databook are described only to show representative usages ...