SD7402

THREE-CHANNEL AUDIO AMPLIFIER DESCRIPTION SD7402 is a 3-channel audio amplifier with built-in microphone input amplifier. High quality audio output is available through simple peripheral circuit and the amplifier gain can be adjusted flexibly by external resistor. Its audio output signal-noise ratio is 85dB, total harmonic distortion is 0.05% and the channel separation is 78dB. Based on BICMOS technology, SD7402 can stably work in +5V/12V system with built-in voltage regulator. The built-in filter can improve the audio quality by attenuating the other signals. The mute and ON/OFF POP suppression functions can suppress the POP noise in the input signal. It is widely used as pre-amplification in various stereo and 2.1channel audio systems to pre-amplify the signal from the main chip audio. SOP-16-225-1.27 APPLICATIONS FEATURES * BICMOS technology * Dual power supply (+5V/-12V) * Built-in voltage regulator * Low distortion * Standby function * Mute function and ON/OFF POP noise suppression * CD/VCD/DVD * Other audio systems ORDERING INFORMATION www.DataSheet4U.com Part No. SD7402 SD7402TR Package SOP-16-225-1.27 SOP-16-225-1.27 Marking SD7402 SD7402 Material Pb free Pb free Package Type Tube Tape & Reel HANGZHOU SILAN MICROELECTRONICS CO.,LTD Http://www.silan.com.cn REV:1.0 2009.11.11 Page 1 of 7 BLOCK DIAGRAM ABSOLUTE MAXIMUM RATINGS Characteristics www.DataSheet4U.com Symbol VCC/VSS Topr Tstg Rating +6/-1 Unit V °C °C Supply Voltage (VCC/Vss) Operating Temperat...