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EL6281CL PDF 데이터시트 : 부품 기능 및 핀배열

부품번호 EL6281CL
기능 4-Channel Laser Driver with APC Amp
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EL6281CL 데이터시트, 핀배열, 회로
EL6281C - Product Brief
4-Channel Laser Driver with APC Amp
Features
• Read + 3 Write Channel laser
driver with oscillator & fast I/V
amplifier
• Rise time = 0.8 nsec
• Fall time = 0.8 nsec
• 200V/µs I/V amplifier
• 100X gain, 100mA low noise read
channel
• 200X gain, 200mA write channel
• Two 100X gain, 100mA write
channels
• 500MHz, 100mAP-P Oscillator
with dual frequency and amplitude
control
• 3.3V compatible logic signals
• Single +5V supply
Applications
• CD-RW to 16X
• CD-R to 32X
• Writable Optical Disk Drives
Ordering Information
Part No.
EL6281CU
EL6281CL
Temp. Range
0°C to +70°C
0°C to +70°C
Package
QSOP-24
LPP-24
Outline #
MDP0040
MDP0046
General Description
The EL6281C is a combination read + 3 write level laser driver with
IV amplifier. A dual amplitude, dual frequency RF oscillator sums on
the output for laser noise reduction during read or write. All these
functions are provided in 24-lead QSOP and LPP packages.
The ENABLE pin enables the read & write channels. Positive current
supplied to the IIN lines, through user selected resistors, allow the full
scale range of each amplifier to be matched to the full scale range of
the users control DACs. When the WEN pins are switched low, the
respective current is summed to the output with 1ns rise and fall times.
The 100mAP-P (max) oscillator is switched on and off by the OSCEN
line. The R/W line allows the oscillator to operate at one amplitude
and frequency when R/W is high, and another amplitude and fre-
quency when R/W is low.
The entire chip is powered down when ENABLE is low. The user can
calibrate the gain of the I/V amplifier. With a slew rate around
200V/µs, the I/V amplifier can normally settle to less than 1% within
30ns.
Connection Diagram
1 VOUT
PDIN 24
2 VREF
VCC 23
3 IINR
VCC 22
4 IIN2
IOUT 21
5 RFREQ1
GND 20
6 IIN3
GND 19
7 IIN4
RAMP1 18
8 RFREQ2 RAMP2 17
9 RWB
ENABLE 16
10 GND
OSCEN 15
11 WEN4
VCC 14
12 WEN3
WEN2 13
IIN2 1
RF1 2
IIN3 3
IIN4 4
RF2 5
RWB 6
GND 7
Thermal Pad
19 VCC
18 IOUT
17 GND
16 GND
15 RAMP1
14 RAMP2
13 ENABLE
24-Pin LPP Top View
Note: All information contained in this data sheet has been carefully checked and is believed to be accurate as of the date of publication; however, this data sheet cannot be a “controlled document”. Current revisions, if any, to these
specifications are maintained at the factory and are available upon your request. We recommend checking the revision level before finalization of your design documentation.
© 2001 Elantec Semiconductor, Inc.






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부품번호상세설명 및 기능제조사
EL6281C

4-Channel Laser Driver with APC Amp

Elantec Semiconductor
Elantec Semiconductor
EL6281CL

4-Channel Laser Driver with APC Amp

Elantec Semiconductor
Elantec Semiconductor

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