CXA2640ER

www.DataSheet4U.com CXA2640ER 3-Channel 2-LD Driver for Optical Disc Drive Description The CXA2640ER is a laser driver IC capable of driving two high output lasers (CD/DVD) for writeable optical discs. Features CD maximum drive current: 300mA DVD maximum drive current: 250mA Capable of generating three-value write waveform through control of one read channel and two write channels Rise/Fall times = 1ns Read Channel: ×100 Write Channel: ×840 (CD), ×400 (DVD) Read channel has extensive low-noise design 1.5nA/√Hz (@20MHz, ILD = 35mA, IMOD = 40mAp-p) Internal high frequency modulator circuit Frequency variable range: 200 to 600MHz Maximum modulator current amplitude: 100mAp-p Can be set separately for CD and DVD. Timing input for generating write waveform can be adapted to both differential input (LVDS/LVPECL) and single end input (3.3V CMOS/TTL). Single 5V power supply Applications CD-R, CD-RW, DVD-R, DVD+RW, DVD-RW and DVD-RAM for high-speed writeable optical disc drives Structure Bipolar silicon monolithic IC 24 pin VQFN (Plastic) Absolute Maximum Ratings (Ta = 25°C) Supply voltage Vcc 5.5 Storage temperature Tstg –65 to +150 Allowable power dissipation PD TBD Operating Conditions Supply voltage Vcc Operating temperature Topr V °C 4.5 to 5.5 –10 to +75 V °C Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by any implication or otherwise under any patents or other r...