ZL40539 Datasheet, PDF (1/26 Pages) Zarlink Semiconductor Inc – Dual Output CD and DVD 4 Channel Laser Diode Driver

ZL40539
Dual Output CD and DVD
4 Channel Laser Diode Driver
Data Sheet
Features
• Pin compatible with EL6839
• Dual output for CD/DVD laser
• LVDS control signal, internal 100 ohms
• Rise time 1.0 ns, Fall time 1.1 ns typical
• Low noise read channel with gain of 100x to
150 mA
• Channel 2 gain of 250x to 550 mA
• Channel 3 gain of 150x to 500 mA
• Channel 4 gain of 100x to 450 mA
• Combined total output current 700 mA
• On-chip oscillator with frequency and amplitude
control by external resistors
• Oscillator frequency to 575 MHz, amplitude to
100 mA pk to pk
• Power Up/Down control
• > 2 kV ESD Single 5 V supply (±10%)
February 2005
Ordering Information
ZL40539LCG Trays/Bake/Dry Pack
ZL40539LCF Tape/Reel Bake/Dry Pack
0°C to +70°C
• 32-pin QFN package
Applications
• DVD±RW/RAM
• DVD±R
• CD-RW
• CD-R
• Write optical drives
• Laser Diode current switch
• Supports double density DVD
EN4
P/N ENRB
EN2
P/N
EN3
P/N
Enable
INR
Chip Enable/Power
VCC_A
IN2
OUTA
GND
IN3
OUTB
IN4
VCC_B
RFA
RFB
RSA
RSB
OSCEN
SELA
Figure 1 - ZL40539 Block Diagram
1
Zarlink Semiconductor Inc.
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Copyright 2004-2005, Zarlink Semiconductor Inc. All Rights Reserved.