GENERAL DESCRIPTION
The MAX14505/MAX14505A have internal shunt switches that discharge the audio amplifier AC-coupling capacitance at the normally open (NO) terminals. This reduces click-and-pop sounds that occur when switching audio signals between precharged points. The MAX14504/ MAX14505/MAX14505A/MAX14506 control the switches with control bit, CB, and feature an enable input, EN, that place COM in a high-impedance mode. The MAX14504/MAX14505/MAX14505A/MAX14506 are fully specified to operate from a single +2.3V to +5.5V power supply. These devices are available in a 1.56mm x 2.14mm, 12-bump WLP package, and operate over the -40°C to +85°C extended temperature range. Cell Phones MP3 Players Portable Audio Equipment Speaker Switching APPLICATIONS
FEATURES
o Distortion-Free Negative Signal Throughput from -VCC to +VCC o Internal Shunt Switches Reduce Click/Pop (MAX14505/MAX14505A) o Low On-Resistance 0.36Ω (typ) o 1mΩ (typ) On-Resistance Flatness o COM High Impedance for EN = High o Lo...