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TPA2001D1PWG4 Arkusz danych(PDF) 1 Page - Texas Instruments |
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TPA2001D1PWG4 Arkusz danych(HTML) 1 Page - Texas Instruments |
1 / 15 page TPA2001D1 1-W FILTERLESS MONO CLASS-D AUDIO POWER AMPLIFIER SLOS338D – SEPTEMBER 2000 – REVISED DECEMBER 2002 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Modulation Scheme Optimized to Operate Without a Filter D TSSOP Package Options D 1 W Into an 8-Ω Speaker (THD+N<1%) D <0.2% THD+N at 1 W, 1 kHz, Into an 8- Ω Load D Extremely Efficient Third Generation 5-V Class-D Technology: – Low-Supply Current (No Filter) ...4 mA – Low-Supply Current (Filter) . . . 7.5 mA – Low-Shutdown Current . . . 0.05 µA – Low-Noise Floor ...40 µVRMS (No-Weighting Filter) – Maximum Efficiency Into 8 Ω, 75 – 85% – 4 Internal Gain Settings ...6 – 23.5 dB – PSRR . . . –77 dB D Integrated Depop Circuitry D Short-Circuit Protection (Short to Battery, Ground, and Load) description The TPA2001D1 is a 1-W mono bridge-tied-load (BTL) class-D amplifier designed to drive a speaker with at least 8- Ω impedance. The amplifier uses TI’s third generation modulation technique, which results in improved efficiency and SNR. It also allows the device to be connected directly to the speaker without the use of the LC output filter commonly associated with class-D amplifiers (this results in EMI which must be shielded at the system level). These features make the device ideal for use in devices where high-efficiency is needed to extend battery run time. The gain of the amplifier is controlled by two input terminals, GAIN1, and GAIN0. This allows the amplifier to be configured for a gain of 6, 12, 18, and 23.5 dB. The differential input terminals are high-impedance CMOS inputs, and can be used as summing nodes. The class-D BTL amplifier includes depop circuitry to reduce the amount of turnon pop at power up, and when cycling SHUTDOWN. The TPA2001D1 is available in the 16-pin TSSOP package that drives 1 W of continuous output power into an 8- Ω load. TPA2001D1 operates over an ambient temperature range of –40°C to 85°C. AVAILABLE OPTIONS T PACKAGED DEVICES TA TSSOP (PW)† –40 °C to 85°C TPA2001D1PW † The PW package is available taped and reeled. To order a taped and reeled part, add the suffix R to the part number (e.g., TPA2001D1PWR). Copyright 2002, Texas Instruments Incorporated Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 INP INN SHUTDOWN GAIN0 GAIN1 PVDD OUTP PGND BYPASS AGND COSC ROSC VDD PVDD OUTN PGND PW PACKAGE (TOP VIEW) PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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