TA2109F is a 3-beam type PUH compatible RF Amplifier for Digital Servo to be used in the CD system. In combination with a CMOS single chip processor TC9432AF/TC9462F a CD system can be composed very simply.

Features
Built in amplifier for reference (VREF, 2 VREF) supply.
Built in Auto Laser Power Control circuit.
Built in RF amplifier.
Built in focus error amp and tracking error amp.
Built in sub-beam adder signal amplifier.
Capable of tracking balance control with TC9432AF/TC9462F.
Capable of RF gain adjustment circuit with TC9432AF/TC9462F.
Built in signal amplifier for track counter.
Capable of 4 times speed operation.
24 pin mini flat package.