AN5278

ICs for Audio Common Use AN5278 4.8 W × 1 (18 V, 8 Ω) Power Amplifier with Volume and Tone Control Unit : mm s Overview The AN5278 is a monolithic integrated circuit designed for 4.8 W × 1 channel OTL (18 V, 8 Ω) output audio power amplifier suitable for TV application. 19.9±0.1 φ2.65±0.1 8.4±0.25 5.8±0.25 1.5±0.25 6.3 ±0.3 7.1 ±0.25 3.75±0.25 0.5 ±0.1 1.2 ±0.25 15.0 Few external components : No boucherot cells (output C, R) No bootstrap capacitors Built-in DC mute of input pin during power-OFF Operating voltage range 12 V to 26 V (18 V typ.) 0.1±0.05 5.6±0.25 s Applications TV HSIP009-P-0000 s Block Diagram Pre amp. 10 kΩ AC mute Tone Volume 10 kΩ 300 Ω DC mute 5 6 7 8 9 1 2 3 Vol. 4 RF NF GND In LF Tone Out VCC 1.7 ±0.25 1.7±0.25 +0.1 0.45 –0.05 2.54 s Features 9 8 7 6 5 4 3 2 1 18.3±0.25 φ3.3±0.1 22.3±0.3 1 AN5278 s Pin Descriptions Pin No. 1 2 3 4 5 6 7 8 9 Sound input Low frequency input Tone control Volume control Ripple filter Negative feedback GND Sound output VCC Description ICs for Audio Common Use s Absolute Maximum Ratings Parameter Supply voltage Supply current Power dissipation *3 *1 *2 Symbol VCC ICC PD Topr Tstg Rating 35.0 2 1.6 −20 to +70 −55 to +150 Unit V A W °C °C Operating ambient temperature Storage temperature *1 Note) *1 : Ta = 25 °C except operating ambient temperature and storage temperature. *2 : Without input signal, VCC is up to 35 V. *3 : Power dissipation of the package at Ta = 70 °C. s ...