器件名称: T0806
功能描述: 3 CHANNEL LASER DRIVER WITH RF OSCILLATOR AND 2 OUTPUTS
文件大小: 241.07KB 共7页
简 介:Features
Current-controlled Output Current Source, 3 Input Channels Two Selectable Outputs for Grounded Laser Diodes Output Current per Channel up to 250 mA Total Output Current to 300 mA (Minimum) Rise Time 1.0 ns, Fall Time 1.1 ns On-chip RF Oscillator Control of 2 Different Swings by Use of 2 external Resistors Oscillator Frequency Range from 200 MHz to 600 MHz Oscillator Swing to 100 mA Single 5 V Power Supply Common Enable/Disable Input TTL/CMOS Control Signals Small PB-free QFN16 (4 mm × 4 mm) or SSO16 Package
Applications
DVD-ROM with CD-RW Capability (Combo Drives) Combo Drives with CD and DVD Writing Capability
3-Channel Laser Driver with RF Oscillator and 2 Outputs T0806 Summary
Description
The T0806 is a laser diode driver for the operation of two different grounded laser diodes for DVD-RAM (650 nm) and CD-RW (780 nm) drives. It includes three channels for three different optical power levels which are controlled by a separate IC. The read channel generates a continuous output level whereas channels 2 and 3 are provided as write channels with very fast switching speeds. Write 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 channel can contribute up to 250 mA to the total output current of up to 300 mA. A total gain of 100 is provided between each reference current input and the selected output. Although the ……
