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ISL58831CRZ датащи(PDF) 1 Page - Intersil Corporation

номер детали ISL58831CRZ
подробное описание детали  Dual Laser Driver with APC Amplifier and Spread Spectrum Oscillator
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производитель  INTERSIL [Intersil Corporation]
домашняя страница  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation

ISL58831CRZ датащи(HTML) 1 Page - Intersil Corporation

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DATASHEET
Dual Laser Driver with APC Amplifier and Spread
Spectrum Oscillator
ISL58831
The ISL58831 is a combination read + 3 write level laser driver
and IV amplifier, with an extra read + oscillator ROM channel
for use in dual-laser ‘Combo’ drivers. A separate (amplitude
and frequency) oscillator modulates the selected output for
laser noise reduction during read or write. All these functions
are provided in a 24 Ld QFN package.
The SEL1 pin, when high, selects the DVD (write) laser. Positive
current supplied to the IIN lines, through a user-selected
resistor, allow the full-scale range of each amplifier to be
matched to the full-scale range of the users control DACs.
When the write laser is selected, and the WEN pins are
switched low, the respective current is summed to the output
with 1ns rise and fall times. Write channel 2 has 240mA
output capability with an 250X gain amplifier.
The 100mAP-P (maximum) oscillator is switched on and off by
the OSCEN line. The SEL1 line allows the oscillator to operate
at different amplitudes and frequencies for each laser.
The entire chip is powered down when ENABLE is low. The user
can define the gain of the I/V amplifier. With a slew rate of
200V/µs, the I/V amplifier can normally settle to 1% within
30ns.
An internal spread spectrum circuit modulates the oscillator
frequency to help reduce peak EMI.
Features
• “Shrink-small” outline package
• Voltage-controlled output current source requiring one
external set resistor per channel
• Current-controlled output current source
• CH2 to 235mA maximum
• CH3 to 170mA maximum
• CH4 to 100mA maximum
• Rise time = 0.8ns
• Fall time = 0.8ns
• On-chip oscillator with frequency and amplitude control by
use of external resistors to ground
• Oscillator to 600MHz
• Oscillator to 100mAP-P
• Single +5V supply (±10%)
• Disable feature for power-up protection and power savings
• 200V/µs I/V amplifier
• Internal spread spectrum modulation to reduce peak EMI
• Pb-free (RoHS compliant)
Applications
•Combo CD-R + DVD-R
•DVD±RW to 8X
• Writable optical disk drives
Data Sheet
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
| Copyright Intersil Americas LLC 2006, 2016. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
January 28, 2016
FN7440.1


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