AK2570
Description
AK2570 is the monolithic CMOS LSI has the function of ‘ Feed Forward Automatic Power Control (APC)’ for the Laser Diode (LD) module and maintains the emission intensity of the LD module constant with the high accuracy.
Key Features
- Realizing all APC function on 1 silicon chip
- Controlling the driving current (the Bias- and the Modulation- current) for the LD module
- Consisting of the 2channels - 8bits D to A converter and the Op-amp
- EEPROM (Electrically Erasable Programmable Read Only Memory)
- The Non-volatile Memory
- The memory capacity : Address 9bits × Data 16bits
- Retaining the data of the pensation voltage and the trimming data of the T-SENSE offset voltage and the ALM timing for each LD module
- On-chip Thermo-sensor (T-SENSE)
- Detecting the ambient temperature and converting the detected temperature to the voltage
- On-chip Alarm circuit
