T0820 Description
The T0820 is a laser diode driver for the operation of a grounded laser diode for writable optical drives. It includes four channels for four different optical power levels which are controlled by a separate IC. The read channel generates a continuous output level whereas channels 2 to 4 are provided as write channels with very fast switching speeds.
T0820 Key Features
- Current-controlled Output Current Source with 4 Input Channels
- Low-power Consumption
- Output Current up to 150 mA, Read Channel and Channel 2
- Output Current up to 200 mA, Channel 3 and Channel 4
- Total Output Current to 300 mA
- Rise Time 1.0 ns, Fall Time 1.1 ns
- On-chip RF Oscillator
- Control Frequency and Swings by Use of 2 External Resistors
- Oscillator Frequency Range from 200 MHz to 600 MHz
- Oscillator Swing to 100 mA