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PDF ISL58831 Data sheet ( Hoja de datos )
| Número de pieza | ISL58831 | |
| Descripción | Dual Laser Driver | |
| Fabricantes | Intersil | |
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DATASHEET
Dual Laser DriveDartawShieteht 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
January 28, 2016
FN7440.1
1
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.
1 page  
ISL58831
Absolute Maximum Ratings (TA = +25°C)
Voltages Applied to:
VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +6.0V
WEN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to VDD +0.5V
IINx . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to +5.0V
IOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -0.5V to VDD+0.5V
Power Dissipation (maximum) . . . . . . . . . . . . . . . . . . . . . . . . . . . See page 9
IOUT Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . 300mA average, 500mAP-P
Thermal Information
Thermal Resistance (Typical)
JA (°C/W)
24 Ld QFN Package (Note 4). . . . . . . . . . . . . . . . . . . . . .
42
Maximum Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . .+150°C
Storage Temperature Range. . . . . . . . . . . . . . . . . . . . . . . .-65°C to +150°C
Pb-Free Reflow Profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see TB493
Recommended Operating Conditions
Operating Ambient Temperature Range . . . . . . . . . . . . . . . . 0°C to +80°C
VDD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V ±10%
RFREQ. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1500Ω (minimum)
RAMP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .500Ω (minimum)
FOSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100MHz to 600MHz
AOSC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20mAP-P to 100mAP-P
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and
operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
4. JA is measured with the component mounted on a high effective thermal conductivity test board in free air. See Tech Brief TB379 for details.
NOTE: Compliance to datasheet limits is assured by one or more methods: production test, characterization and/or design.
Electrical Specifications VDD = 5V, TA = +25°C, ENABLE = HI, WEN = HI, OSCEN = LO, SEL1 = HI, unless otherwise specified.
PARAMETER
DESCRIPTION
TEST CONDITIONS
MIN TYP MAX UNIT
VDD Supply Voltage
IS1 Supply Current (Disabled)
ENABLE = <0.5V
4.5 5.0 5.5
V
0.1 100 µA
IS2
IS3
IS4
IS5
DVLO
EVLO
DVHI
EVHI
DVHICD
DVLOCD
DILO
DIHI
VSHUT
Supply Current
Supply Current
Supply Current
Supply Current
Digital Low Voltage
Enable Low Voltage
Digital High Voltage
Enable High Voltage
Digital High Voltage
Digital Low Voltage
Digital Low Current
Digital High Current
VDD Shutdown Voltage
IINR = 0µA, IIN2/3/4 = 20µA
OSCEN = HI, IINR = 0µA, IIN2/3/4 = 20µA
IINR = 0µA, IIN2/3/4 = 500µA
IINR = 200µA, IIN2/3/4 = 500µA
WEN2/3/4, OSCEN inputs
ENABLE pin (to guarantee IS1)
WEN2/3/4, OSCEN inputs
ENABLE pin only
SEL1 only
SEL1 only
SEL1, OSCEN, ENABLE, WEN = 0.0V
SEL1, OSCEN, ENABLE, WEN = 5.0V
34 40 46 mA
50 60 70 mA
61 73 85 mA
94 112 130 mA
1.3 V
0.5 V
2.2 V
2.2 V
2.2 V
1.3 V
-100
µA
100 µA
3.5 3.9 V
Laser Amplifier VDD = 5V, TA = +25°C, ENABLE = HI unless otherwise specified.
PARAMETER
DESCRIPTION
CONDITIONS
GAINR
GAINR2
GAIN2
GAIN3
GAIN4
IOUTR
Best Fit Current Gain
Best Fit Current Gain
Best Fit Current Gain
Best Fit Current Gain
Best Fit Current Gain
Output Current
Channel R - IOUT1 (Note 5)
Channel R2 - IOUT2 (Note 5)
Channel 2 - IOUT1 (Note 5)
Channel 3 - IOUT1 (Note 5)
Channel 4 - IOUT1 (Note 5)
VDD = 4.5V, VOUT = 3.4V, output is sourcing,
channel R - IOUT1 (Note 5), IINR = 2mA
MIN TYP MAX UNIT
140 165 190 mA/mA
70 82 95 mA/mA
210 250 290 mA/mA
170 200 230 mA/mA
80 100 120 mA/mA
150 mA
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5
FN7440.1
January 28, 2016
5 Page 
ISL58831
Revision History
The revision history provided is for informational purposes only and is believed to be accurate, but not warranted. Please go to the web to make sure that
you have the latest revision.
DATE
REVISION
CHANGE
January 28, 2016
FN7440.1
Updated to newest template and order of content .
Updated Ordering Information table - added quantity for Tape and Reel, added Tape and Reel and MSL
notes.
Page 5, above Electrical Spec table - changed “IMPORTANT NOTE: All parameters having Min/Max
specifications are guaranteed. Typical values are for information purposes only. Unless otherwise
noted, all tests are at the specified temperature and are pulsed tests, therefore: TJ = TC = TA.”
to: “NOTE: Compliance to datasheet limits is assured by one or more methods: production test,
characterization and/or design.”
Page 6, Laser Current Amplifier Outputs AC Performance table, Output Current Overshoot - Changed
Conditions from: See Application Notes to: Measured on 6.8O resistor load
Page 8, Timing Diagram - corrected the polarity of the WEN2, WEN3 and WEN4 signals. Correct polarity
is Active Low.
Page 5, Added Thermal Information section, JA (°C/W) of 42.
Page 12, POD MDP0046 updated from rev 10 to rev 11. No changes to POD, only internal record.
About Intersil
Intersil Corporation is a leading provider of innovative power management and precision analog solutions. The company's products
address some of the largest markets within the industrial and infrastructure, mobile computing and high-end consumer markets.
For the most updated datasheet, application notes, related documentation and related parts, please see the respective product
information page found at www.intersil.com.
You may report errors or suggestions for improving this datasheet by visiting www.intersil.com/ask.
Reliability reports are also available from our website at www.intersil.com/support.
For additional products, see www.intersil.com/en/products.html
Intersil products are manufactured, assembled and tested utilizing ISO9001 quality systems as noted
in the quality certifications found at www.intersil.com/en/support/qualandreliability.html
Intersil products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design, software and/or specifications at any time
without notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be
accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use; nor for any infringements of patents or other rights of third
parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Intersil or its subsidiaries.
For information regarding Intersil Corporation and its products, see www.intersil.com
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FN7440.1
January 28, 2016
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet ISL58831.PDF ] | |
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