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ATR0809-PRQG

更新时间： 2024-01-22 23:47:59

品牌	Logo	应用领域
爱特美尔 - ATMEL		振荡器驱动器驱动程序和接口接口集成电路射频输出元件
页数	文件大小	规格书
8页	220K
描述
FOUR CHANNEL LASER DRIVER WITH RF OSCILLATOR AND TWO OUTPUTS

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技术参数
数据手册

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ATR0809-PRQG 技术参数

是否Rohs认证：	符合	生命周期：	Obsolete
零件包装代码：	SOIC	包装说明：	LSSOP, TSSOP20,.25
针数：	20	Reach Compliance Code：	compliant
风险等级：	5.83	接口集成电路类型：	INTERFACE CIRCUIT
JESD-30 代码：	R-PDSO-G20	JESD-609代码：	e3
长度：	6.625 mm	湿度敏感等级：	1
功能数量：	1	端子数量：	20
最高工作温度：	70 °C	最低工作温度：
封装主体材料：	PLASTIC/EPOXY	封装代码：	LSSOP
封装等效代码：	TSSOP20,.25	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	260
电源：	5 V	认证状态：	Not Qualified
座面最大高度：	1.45 mm	子类别：	Display Drivers
最大供电电压：	5.5 V	最小供电电压：	4.5 V
标称供电电压：	5 V	表面贴装：	YES
温度等级：	COMMERCIAL	端子面层：	Matte Tin (Sn) - annealed
端子形式：	GULL WING	端子节距：	0.65 mm
端子位置：	DUAL	处于峰值回流温度下的最长时间：	40
宽度：	4.4 mm	Base Number Matches：	1

ATR0809-PRQG 数据手册

Features

• Current-controlled Output Current Source with 4 Input Channels

• Two Selectable Outputs for Grounded Laser Diodes

• Up to 350 mA Output Current per Channel

• Total Output Current up to 500 mA

• On-chip RF Oscillator

• Oscillator Frequency Range from 200 MHz to 500 MHz

• Individual Setting of RF Oscillator Current on Each Output by External Resistors

• Maximum Oscillator Current Amplitude 100 mA

• Single 5 V Power Supply

• Common Enable/Disable Input

• TTL/CMOS Compatible Control Signals

• Small Pb-free QFN20 or SSO20 Package

Four Channel

Laser Driver

with RF

Oscillator and

Two Outputs

Applications

• DVD-ROM with CD-RW Capability

• DVD+RW with CD-RW Capability

• DVD-RW with CD-RW Capability

• Magneto-optical Drives and Others

ATR0809

Summary

Description

ATR0809 is a laser diode driver for the operation of two different grounded laser

diodes for DVD-RW/+RW (650 nm) and CD-RW (780 nm). It includes four channels for

four different optical power levels. All channels (channel 1 = read channel, channel 2,

3, 4 = write channels) can be controlled by fast switches. The current pulses are

enabled when a low signal is applied to the NE pins. All channels are summed

together and switched to one of the two outputs IOUTA or IOUTB by the select input

SELA. Each write channel (channel 2, 3 and 4) can contribute up to 350 mA to the

total output current of up to 500 mA. The read channel can contribute up to 150 mA.

Total gains of 100 (read channel), 250 (channel 2 and 3) and 100 (channel 4) are pro-

vided between each reference current input and the selected output. Although the

reference inputs are current inputs, voltage control is also possible by using external

resistors. An on-chip RF oscillator can be used to reduce laser mode hopping noise in

read mode. The oscillator current amplitude and frequency can be set independently

for the two selectable outputs with four different resistors. Oscillation is enabled by a

high signal at the ENOSC pin. Complete shutdown of the output currents is achieved

by a low signal at the ENABLE input.

Rev. 4792BS–DVD–05/04

12 3 4 5 6 7 8

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