The TA2145AF is a 3V stereo headphone amplifier chip produced by Toshiba, which has the characteristics of low noise and low power consumption.
The TA2145AF is a bipolar linear integrated circuit designed for 3 V stereo headphone applications. It incorporates dual preamplifiers, dual OCL power amplifiers, a motor governor, DC volume control, and a preamplifier on/off switch, offering features such as low noise (Vni = 1.2 µVrms) and a typical voltage gain of 31 dB.
The document lists detailed electrical characteristics, maximum ratings, and pin descriptions, including supply voltage ranges (VCC 1.8‑3.6 V, GVN 2.1‑3.6 V), quiescent supply current (8.5 mA typical), and application notes on layout and usage. Restrictions on product use and reliability guidelines are also provided.