ZHCSH28B September 2017 – December 2017 TPA3221
PRODUCTION DATA.
TPA3221 is designed to accept either a differential or a single-ended audio input signal. To accept a wide range of system front ends TPA3221 has selectable input gain that allows full scale output with a wide range of input signal levels.
Best system noise performance is obtained with balanced audio interface. However, to be used in systems with only a single ended audio input signal available, one input terminal can be connected to AC ground, to accept single ended audio input signals.
In systems with single ended audio inputs the device gain will typically need to be set higher than for systems with balanced audio input signals.