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OPA227 Datasheet(PDF) 17 Page - Burr-Brown (TI) |
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OPA227 Datasheet(HTML) 17 Page - Burr-Brown (TI) |
17 / 25 page OPA227, 2227, 4227 OPA228, 2228, 4228 17 SBOS110A www.ti.com FIGURE 17. Headphone Amplifier. FIGURE 18. Three-Band ActiveTone Control (bass, midrange and treble). 200 Ω 200 Ω 1k Ω 1k Ω 1/2 OPA2227 1/2 OPA2227 –15V 0.1 µF 0.1 µF +15V Audio In This application uses two op amps in parallel for higher output current drive. To Headphone R 5 50k Ω R 4 2.7k Ω V IN V OUT R 6 2.7k Ω C 1 940pF C 2 0.0047 µF C 3 680pF CW CW R 2 50k Ω R 1 7.5k Ω R 3 7.5k Ω R 10 100k Ω R 8 50k Ω R 7 7.5k Ω R 9 7.5k Ω R 11 100k Ω CW Bass Tone Control Midrange Tone Control Treble Tone Control 1 3 6 2 3 2 1 3 2 1 3 2 OPA227 |
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Similar Description - OPA227 |
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