TA2157F Datasheet (Toshiba Semiconductor)

TA2157F, Digital Servo Head Amp

3.3 V power supply pin Internal Circuit ¾ 22 kW 2 3 3 FPI I Main-beam amp input pin 1 kW 120 mA 2 FNI I Main-beam amp input pin VC 4 TPI I Sub-beam amp input pin 4 5 2 mA 100 W VC 2 mA 5 TNI I Sub-beam amp input pin 20 mA 2 mA 4 mA 6 MDI I Monitor photo diode amp input pin 6

TA2157F Features

* Low power dissipation digital servo head amp Built-in amplifier for generating reference voltage (VRO) Built-in auto laser power control (APC) amplifier Built-in RF amplifier Built-in RF signal automatic gain control (AGC) amplifier Built-i