TDA2009 application circuit and reference materials

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TDA2009 application circuit and reference materials

1 foot: 1.2V - left channel input
2 feet: 0.8V - left channel feedback
3 feet: 12V - squelch
4 feet: 0.8V - right channel feedback
5 feet: 1.2V - right channel input
6 feet: 0V - ground
7 feet: 0V - empty
8 feet: 12.4V - right channel output
9 feet: 24V - power supply
10 feet: 12.4V - left channel output
11 feet: --