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TPA0112 Datasheet(PDF) 20 Page - Texas Instruments |
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TPA0112 Datasheet(HTML) 20 Page - Texas Instruments |
20 / 34 page TPA0112 2-W STEREO AUDIO POWER AMPLIFIER WITH FOUR SELECTABLE GAIN SETTINGS SLOS204B – MAY 1999 – REVISED MARCH 2000 20 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 APPLICATION INFORMATION 3 ROUT+ 21 R MUX RHPIN RLINEIN + – 23 20 CCRIN– 0.47 µF 8 RIN ROUT– 16 + – 1 k Ω COUTR 330 µF 100 k Ω L MUX LHPIN LLINEIN 5 6 CIlHP 0.47 µF Left Head– phone Input Signal CILLINE 0.47 µF Left Line Input Signal CLIN 0.47 µF 10 LIN 1 k Ω COUTR 330 µF VDD 100 k Ω Depop Circuitry Power Management PVDD 18 VDD 19 BYPASS 11 SHUT– DOWN 22 GND LOUT+ 4 + – LOUT– 9 + – CBYP 0.47 µF 1,12, 13,24 To System Control CSR 0.1 µF VDD CSR 0.1 µF VDD See Note A PC– Beep PC–BEEP PC ENABLE 14 CPCB 0.47 µF PC BEEP Input Signal 17 Gain/ MUX Control GAIN0 GAIN1 2 SE/BTL 15 N/C CRIN+ 0.47 µF Right Positive Differential Input Signal Right Negative Differential Input Signal NOTE A: A 0.1 µF ceramic capacitor should be placed as close as possible to the IC. For filtering lower–frequency noise signals, a larger electrolytic capacitor of 10 µF or greater should be placed near the audio power amplifier. Figure 43. Typical TPA0112 Application Circuit Using Differential Inputs |
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