I need an IC for a mono amplifier:
Primary input power: 14Vdc with alternator ripple, typical automotive (i.e. needs good PSRR).
Output: 6Vp-p into 35Ω load.
Gain: 1 (unity, inverting ok).
Two switched inputs: (need isolation between inputs, i.e. "summing amp", level on input A not effected by input B being switched on-off, and vice-versa).
Input impedance: ≥ 500Ω, single ended, ground referenced.
Frequency Response: flat between 100 to 5000Hz with 6db per octave roll-off above and below.
It seems a standard opamp cannot drive a 35Ω load. I'm thinking LM386N1? Other suggestions??
Primary input power: 14Vdc with alternator ripple, typical automotive (i.e. needs good PSRR).
Output: 6Vp-p into 35Ω load.
Gain: 1 (unity, inverting ok).
Two switched inputs: (need isolation between inputs, i.e. "summing amp", level on input A not effected by input B being switched on-off, and vice-versa).
Input impedance: ≥ 500Ω, single ended, ground referenced.
Frequency Response: flat between 100 to 5000Hz with 6db per octave roll-off above and below.
It seems a standard opamp cannot drive a 35Ω load. I'm thinking LM386N1? Other suggestions??
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