Date: 2017-06-28
PPA DSP amplifier user manual
16
6.
Block Diagram of Signal Processing
For the analog inputs, both available configurations are shown. The Dual Range Converter (green box)uses the
same input signal with different gains at the two A/D Converter channels. The DRC algorithm in the DSP decides
which of the signals is to be used to achieve best signal-to-noise ratio.
The Dual Input configuration is optional. It can be used e.g. for stereo-setups where the amplifier for left and
right channel is built in into one speaker (e.g. 2.1 configuration with passive satellite speakers)
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Figure 2 Signal Processing Block Diagram