Two quoestion need check with you,
1. VDD=5V, RL= 4ohm, THD= 1%, what kinds of input signal can output 2.53W?
0dB? or How many voltage?
2. Use single end input, modify external gain, IN- also need to change?
1. The SSM2371 has gain of 18dB with no Rext. So for 2.53W, 4ohm @5V you would need 400mVrms differential signal. The SSM2317 is analog input amplifier and sine wave signal is used for all measurements in the datasheet.
2. For single ended application connect the -IN pin to GND thru capacitor as shown in the circuit. If using Rext the value must be same for both +IN/ -IN pins.
Thank you so much~
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