ATR0881 반도체 회로 부품 판매점
3-output Laser Driver with 5 Channels and Serial Interface
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 ATMEL Corporation |
Features
• Two High-side Outputs for Grounded Red Laser Diodes
• Total Output Current up to 700 mA at VLD = 3.8V
• One Low-side Output for Floating Blue Laser Diode
• Total Output Current up to 550 mA, External LD Supply Voltage
• Five Channels with Gain DACs
• Two Current Inputs for Read and Write Channels
• Channel 2 Current Contribution up to 350 mA
• LVDS-compatible Enable Inputs at Channels 2, 3, 4 and HFM
• Optional SyncDrive Technology for Increased Timing Accuracy
• Common Enable Input for All Channels
• Low-EMI High-Frequency Modulator (HFM) with Wiper
– Frequency Range 200 MHz to 500 MHz
– Swing up to 100 mApp
– Erase Modulation Supported
• Serial Interface (SPI and TWI) with Write and Read Operation
– LD Output
– Channel Gains and Input Current Source
– Overcurrent Protection
– HFM Frequency and Swing
– HFM Frequency Measurement
– LVDS/Single Ended Input Configurations
– SyncDrive Mode
– Temperature Monitor
– Blue LD Voltage Monitor
• Small, Pb-free, 24-pin, Paddle-up Package 4 mm × 4 mm
Applications
• Blu-ray/DVD/CD Recordable Drives
• Blu-ray Combo Drives
Benefits
• The Serial Interface Yields the Following Benefits:
– Low Pin Count and Small Package
– Flexible Channel Configurations
– Digital Gain Control
– High Accuracy of HFM Frequency
www.DataSheet4U.com
3-output Laser
Driver with 5
Channels and
Serial Interface
ATR0881
Preliminary
Summary
NOTE: This is a summary document.
The complete document is available.
For more information, please contact
your local Atmel sales office.
9105BS–DVD–03/08
1. Description
www.DataSheet4U.com
The ATR0881 is a laser diode driver designed to operate two grounded red laser diodes for CD
and DVD and one floating blue laser diode for Blu-ray. The floating blue laser diode needs an
extra supply voltage VH. The serial interface (SPI and TWI supported) makes ATR0881 very
flexible and configurable for a wide range of applications. Five channels can be assigned to one
of the two reference current inputs IR and IW. The channel gains can be individually set by
DACs. Prescalers with 2 bits are provided to increase the resolution. Overcurrent protection cir-
cuits supervise the reference current inputs. The channel enable inputs can be configured as
single ended or LVDS. In SyncDrive mode, channels 3, 4, and 5 are synchronized to channel 2.
The on-chip spread spectrum HFM with low EMI reduces laser mode hopping noise. All HFM
frequency and swing parameters can be set by the serial interface. A high frequency-accuracy
can be achieved by the frequency counter feature. HFM enable can be configured as single
ended or LVDS or automatically-disabling by write channels.
2 ATR0881 [Preliminary]
9105BS–DVD–03/08
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PDF 파일 내의 페이지 : 총 6 페이지
제조업체: ATMEL Corporation
( atmel )
ATR0881 driver
데이터시트 다운로드 :
[ ATR0881.PDF ]
[ ATR0881 다른 제조사 검색 ]
국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
[ 홈페이지 ]
IGBT, TR 모듈, SCR, 다이오드모듈, 각종 전력 휴즈
( IYXS, Powerex, Toshiba, Fuji, Bussmann, Eaton )
전력반도체 문의 : 010-3582-2743
관련 데이터시트
ATR0881
3-output Laser Driver with 5 Channels and Serial Interface - ATMEL Corporation
ATR0885
3-output Laser Driver for HD-DVD/ Blu-ray/DVD/ CD-ROM - ATMEL Corporation