Signal processor IC aids microphone clarity

The BU8332KV-M signal processing IC is for ultra-directional microphone applications. The chip enables cardioid directivity through beam-forming technology using two omnidirectional microphones placed just 10 mm apart.

The device runs on 3.0 to 3.6 V over -40º to 85ºC and uses 15 mA typical; 1 µA in deep standby. The 9 x 9 mm VQFP48 packaged IC ensures excellent voice clarity in a specific direction and decreased ambient noise by using directivity control technology. Process optimization limits the processing delay time to 10 ms or less during beam formation operation. Contact a sales office for information.