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ISL58781 の電気的特性と機能

ISL58781のメーカーはIntersilです、この部品の機能は「Laser Diode Driver」です。


製品の詳細 ( Datasheet PDF )

部品番号 ISL58781
部品説明 Laser Diode Driver
メーカ Intersil
ロゴ Intersil ロゴ 




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ISL58781 Datasheet, ISL58781 PDF,ピン配置, 機能
DATASHEET
Laser Diode Driver with Serial Control and Write
Current DAC
ISL58781
The ISL58781 is a highly integrated laser diode driver
designed to support multi-standard writable optical
drives in CD, DVD, and Blu-Ray at various speeds. It is a
‘hybrid’ part having an interface compatible with a
conventional LDD, but an internal architecture similar to
a write strategy LDD. This combination adds versatility to
the conventional interface.
The rise and fall times and overshoot of the blue output
are adjustable to compensate for high and low resistance
lasers.
There are two banks of write currents with a bank select
line, BSEL. This eliminates the need to synchronize the
serial port to the media.
The oscillator can be controlled by external LVDS lines, or
internally activated through program assignment to any
WEN state.
The WEN lines have internal 100Ω terminators. There is a
skew detector on the WEN receiver outputs.
The ISL58781 requires a single 5V supply.
Features
• Compatible with all Conventional Controllers Having
a Serial Port, with Some Programming
• Programmable Snubber on all Outputs
• Compatible with Future Controllers Having Gray
Coded WEN Lines for Glitchless High-Speed
Operation
• WEN Line Skew Detection
• 1000mA Maximum Total Output
• 10-bit x 10-bit Multiplying DAC Output Provides
10-bit Full Scale Adjustment and 10-bit Resolution at
any Full Scale Output
• Three Laser Outputs Allow Read/Write DVD, CD, and
Blue Combinations
• Analog Inputs Supports Read APC
• HFM Oscillator Programmable to 100mAP-P and
Range from 100MHz to >1GHz
• Programmable HFM On, Off and Cooling Levels
• Programmable Spread Spectrum for Low EMI
• Built-in ADC to Sample Laser Voltage Allows Power
Reduction by Optimizing Headroom
• Built-in Thermal Sensor Aids in Thermal Design
• Serial Input Works up to 50MHz
• Pb-Free (RoHS Compliant)
Applications
• Combination DVD, CD, and Blue Writable Drives
• BD Camcorders
• BD Video Recorders
December 3, 2015
FN6909.3
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 2009, 2011, 2013, 2015. 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.

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ISL58781 pdf, ピン配列
ISL58781
Ordering Information
Pin Configuration
PART
NUMBER
TEMP
PART RANGE PACKAGE PKG.
MARKING (°C) (Pb-free) DWG.#
ISL58781
(28 LD QFN)
TOP VIEW
ISL58781CRZ-T13 58781 CRZ -10 to +85 28 Ld QFN L28.4x5A
(Notes 1, 2, 3)
1. Please refer to TB347 for details on reel specifications.
2. These Intersil Pb-free plastic packaged products employ
special Pb-free material sets, molding compounds/die
attach materials, and 100% matte tin plate plus anneal (e3
termination finish, which is RoHS compliant and compatible
with both SnPb and Pb-free soldering operations). Intersil
Pb-free products are MSL classified at Pb-free peak reflow
temperatures that meet or exceed the Pb-free requirements
of IPC/JEDEC J STD-020.
3. For Moisture Sensitivity Level (MSL), please see device
information page for ISL58781. For more information on
MSL please see techbrief TB363.
WEN0 1
WEN0B 2
WEN1 3
WEN1B 4
WEN2 5
WEN2B 6
OSCEN 7
OSCENB 8
THERMAL
PAD
22 VSO
21 IOUT1
20 GND
19 VSO
18 IOUT2
17 IOUT2
16 VSO
15 ENA
Pin Descriptions
PIN
PIN
PIN
NAME NUMBER I/O TYPE
PIN DESCRIPTION
WEN0,
WEN0B
1, 2
I LVDS Write Enable 0. When WEN0 > WEN0B, the result is a logic 1 in the write current selection.
Otherwise it is logic 0.
WEN1,
WEN1B
3, 4
I LVDS Write Enable 1. When WEN1 > WEN1B, the result is a logic 1 in the write current selection.
Otherwise it is logic 0.
WEN2,
WEN2B
5, 6
I LVDS Write Enable 2. When WEN2 > WEN2B, the result is a logic 1 in the write current selection.
Otherwise it is logic 0.
OSCEN,
OSCENB
7, 8
I LVDS Oscillator Enable. When OSCEN > OSCENB, the result is a logic 1, which may be used to
turn on the oscillator. When 0, the oscillator will output a DC current that is programmable.
BSEL 9 I Digital Bank Select input selects the write current register banks.
RFREQ 10 I/O Analog A resistor from RFREQ to GND sets the range of the HFM frequency.
IAPC 11 I Analog A 1kimpedance current input; 100*IAPC flow to the output. This controls the read
current, which may also include a current from an internal DAC.
VSL 12 O Power The internal 2.5V regulator needs a 1µF capacitor from VSL to GND. Do not use VSL for
other loads.
GND
13, 20
Ground Ground
RSET
14 I/O Analog A resistor from RSET to analog ground calibrates the DAC full-scales
ENA
15 I Digital Chip enable input (H = enable, L = disable)
VSO 16, 19, 22
Power Supply voltage for the output drivers only (connect all pins)
IOUT2 17, 18 O Analog Laser diode output #2
IOUT1 21 O Analog Laser diode output #1
IBLUE 23 O Analog Blue laser diode output
SEN
25 I Digital Serial control enable (H = enable, L = disable)
SDIO
26 I/O Digital Serial data for parameters and control; in/out
SCLK 27 I Digital Serial control clock
WEB 28 I Digital Write enable Bar. When low, write current is enabled.
PD Thermal The Thermal pad should be grounded and connected to a heat sink.
NOTE: Pins with the same name are internally connected together; however, LDD pins must not be used for connecting together
external components or features.
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3
FN6909.3
December 3, 2015


3Pages


ISL58781 電子部品, 半導体
ISL58781
IBLUE Write Power DAC (10-bit) DC Specifications Standard conditions unless otherwise noted.
PARAMETER
DESCRIPTION
CONDITIONS
MIN TYP MAX UNIT
DNL-W
Differential Non-Linearity
-4.9
+2.0 LSB
INL-W
Integral Non-Linearity
At fixed 2.5V headroom
+60
LSB
FSOUT-H2.0
TRRANGE
PSRR-FS
Write DAC Full-Scale Output Current
RSET = 620
Tr Tf adjustment Range
Power Supply Rejection -Full -Scale
Current
WriteDAC = 0x3FF;
Fixed Headroom = 2.0V; Reg 1-21 = 8F
Reg 1-0A from X0h to X7h
vs VSO (Note 15)
380 445 575 mA
1 ns
-40 dB
TCFS-IBLUE
Temperature Coefficient -Full-Scale
Current
(Note 16)
600 ppm/C
ZS-W
ROUT-WDAC
Zero-Scale Error
Write DAC Output Series Resistance
VIOUT = 2V (Note 17)
WriteDAC = PMAX = 0x3FF
PMAX bias overdriven (Note 18)
-8 0 +8
2.9 4.5
LSB
NOTES:
15. Full scale output current power supply sensitivity (SFS) is measured by varying the VSO from 4.5V to 5.5V DC and measuring
the effect of this signal on the full-scale output current.
16. Full scale output current temperature coefficient (TFS) is given by delta (full scale output current)/(T).
17. Zero-scale error (ZS) is the deviation from zero current output when the digital input code is zero.
18. PMAX bias overdriven via RSET.
IBLUE Read APC Amplifier DC Specifications Standard conditions unless otherwise noted.
PARAMETER
DESCRIPTION
CONDITIONS
MIN TYP MAX UNIT
IAPCMIN-GAIN
IAPCMAX-GAIN
IAPCGAIN
IAPCOS
LINAPC
IOUT-R-APC
RIN
PSRRAPC
Current Gain @Min Gain
Reg1-21h = 1X, IAPC = 0µA, 500µA
Current Gain @ Max Gain
Reg1-21h = FX, IAPC = 0µA, 500µA
Current Gain
IAPC = 0µA, 500µA
Current Offset
IAPC = 0µA
Output Current Linearity
IAPC = 0µA, 500µA, 1.0mA
Blue Read Output Current, Using IAPC Input IAPC = 1.5mA
IAPC Input Impedance to GND
IAPC Current Power Supply Rejection
IOUT-average = 100mA, varying VSO
8
180
80
-2
0
150
800
12 22 mA/mA
220 280 mA/mA
101 150 mA/mA
13
mA
6%
mA
1300
-46 dB
OUT1/2 Read APC Amplifier DC Specifications Standard condition unless otherwise noted.
PARAMETER
DESCRIPTION
CONDITIONS
MIN TYP MAX
IAPCMIN-GAIN Current Gain @ Min Gain
IAPCMAX-GAIN Current Gain @ Max Gain
IAPCGAIN
Current Gain
IAPCOS
Current Offset
LINAPC
Output Current Linearity
IOUT-R-APC
Read Output Current, Using IAPC
Input
Reg1-21h = 1X, IAPC = 0µA, 500µA 10.5 14 17.5
Reg1-21h = FX, IAPC = 0µA, 500µA 145 163 185
IAPC = 0µA, 500µA
82 92 108
IAPC = 0µA
-2 1
3
IAPC = 0µA, 500µA, 1.0mA
0
6
IAPC = 1.5mA
120
RIN
PSRRAPC
IAPC Input Impedance to GND
IAPC Current Power Supply Rejection IAPC-IN = 0.45mA, varying VSO
800 1300
-48
UNIT
mA/mA
mA/mA
mA/mA
mA
%
mA
dB
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December 3, 2015

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部品番号部品説明メーカ
ISL58781

Laser Diode Driver

Intersil
Intersil


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