Brief Introduction of TEA2025B Audio Power Amplifier Integrated Circuit

TEA2025B is a dual-row 16-pin miniature high-fidelity amplifier IC produced by Thomson. Its main parameters are: power supply voltage, 3V-12V, power 2x1w (power supply 9V, THD1%, RL=8Ω), single channel maximum up to 4.7W, bandwidth 50Hz~2kHz, this IC has low distortion, wide frequency response, high cost performance (the lowest wholesale unit price is only 0.4 yuan/piece), and can be used as a single or dual channel audio amplifier. It is an ideal audio amplifier for mobile CD, mobile DVD, computer sound column, small recorder, small TV and other products. Attached Figure 1 is the dual channel amplifier application circuit of TEA2025B on TcL Wangpai S13 color TV. Appendix 1 is its pin function and the measured DC voltage value on TcL Wangpai S13 color TV.