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TPA711DR Fiches technique(PDF) 1 Page - Texas Instruments |
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TPA711DR Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 37 page TPA711 700-mW MONO LOW-VOLTAGE AUDIO POWER AMPLIFIER SLOS230D – NOVEMBER 1998 – REVISED OCTOBER 2002 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Fully Specified for 3.3-V and 5-V Operation D Wide Power Supply Compatibility 2.5 V – 5.5 V D Output Power – 700 mW at VDD = 5 V, BTL, RL = 8 Ω – 85 mW at VDD = 5 V, SE, RL = 32 Ω – 250 mW at VDD = 3.3 V, BTL, RL = 8 Ω – 37 mW at VDD = 3.3 V, SE, RL = 32 Ω D Shutdown Control – IDD = 7 µA at 3.3 V – IDD = 50 µA at 5 V D BTL to SE Mode Control D Integrated Depop Circuitry D Thermal and Short-Circuit Protection D Surface-Mount Packaging – SOIC – PowerPAD MSOP description The TPA711 is a bridge-tied load (BTL) or single-ended (SE) audio power amplifier devel- oped especially for low-voltage applications where internal speakers and external earphone operation are required. Operating with a 3.3-V supply, the TPA711 can deliver 250-mW of continuous power into a BTL 8- Ω load at less than 0.6% THD+N throughout voice band frequencies. Although this device is characterized out to 20 kHz, its operation is optimized for narrower band applications such as wireless communications. The BTL configuration eliminates the need for external coupling capacitors on the output in most applications, which is particularly important for small battery-powered equipment. A unique feature of the TPA711 is that it allows the amplifier to switch from BTL to SE on the fly when an earphone drive is required. This eliminates complicated mechanical switching or auxiliary devices just to drive the external load. This device features a shutdown mode for power-sensitive applications with special depop circuitry to eliminate speaker noise when exiting shutdown mode. The TPA711 is available in an 8-pin SOIC and the surface-mount PowerPAD MSOP package, which reduces board space by 50% and height by 40%. Audio Input Bias Control VDD 700 mW 6 5 7 VO+ VDD 3 1 2 4 BYPASS IN SE/BTL VDD/2 CI RI CS CB RF SHUTDOWN From HP Jack VO–8 GND From System Control – + – + 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. Copyright 2002, Texas Instruments Incorporated 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. 1 2 3 4 8 7 6 5 SHUTDOWN BYPASS SE/BTL IN VO– GND VDD VO+ D OR DGN PACKAGE (TOP VIEW) PowerPAD is a trademark of Texas Instruments. |
Numéro de pièce similaire - TPA711DR |
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Description similaire - TPA711DR |
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