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TPA6120A2DWP Datasheet(PDF) 1 Page - Texas Instruments |
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TPA6120A2DWP Datasheet(HTML) 1 Page - Texas Instruments |
1 / 24 page www.ti.com FEATURES DESCRIPTION APPLICATIONS Filter and I/V Gain Stage Stereo Hi−Fi Headphone Driver TPA6120A2 DYR > 120 dB for Whole System! OUT A OUT B OUT C OUT D CF 2.7 nF RF LIN− LIN+ RF RIN− RIN+ RI 1 k Ω 1 k Ω LOUT ROUT 1 k Ω RF RO 10 Ω RO 10 Ω 1 k Ω RF RF 1 k Ω RI 1 k Ω RI 1 k Ω RI 1 k Ω CF 2.7 nF RF 1 k Ω 1 k Ω CF 2.7 nF RF CF 2.7 nF RF 1 k Ω 1 k Ω 1/2 OPA4134 1/2 OPA4134 −IN A −IN B +IN B +IN A −IN C −IN D +IN D +IN C PCM Audio Data Source Controller PCM1792 or DSD1792 LRCK BCK DATA RST SCK MDO MC MDI MS ZEROL ZEROR IOUT L− IOUT L+ IOUT R− IOUT R+ AUDIO DAC TPA6120A2 SLOS431 – MARCH 2004 HIGH FIDELITY HEADPHONE AMPLIFIER • 80 mW into 600 Ω From a ±12-V Supply at The TPA6120A2 is a high fidelity audio amplifier built 0.00014% THD + N on a current-feedback architecture. This high bandwidth, extremely low noise device is ideal for • Current-Feedback Architecture high performance equipment. The better than 120 dB • Greater than 120 dB of Dynamic Range of dynamic range exceeds the capabilities of the • SNR of 120 dB human ear, ensuring that nothing audible is lost due to the amplifier. The solid design and performance of • Output Voltage Noise of 5 µVrms at the TPA6120A2 ensures that music, not the amplifier, Gain = 2 V/V is heard. • Power Supply Range: ±5 V to ±15 V Three key features make current-feedback amplifiers • 1300 V/µs Slew Rate outstanding for audio. The first feature is the high • Differential Inputs slew rate that prevents odd order distortion • Independent Power Supplies for Low anomalies. The second feature is current-on-demand Crosstalk at the output that enables the amplifier to respond quickly and linearly when necessary without risk of • Short Circuit and Thermal Protection output distortion. When large amounts of output power are suddenly needed, the amplifier can re- spond extremely quickly without raising the noise • Professional Audio Equipment floor of the system and degrading the signal-to-noise • Mixing Boards ratio. The third feature is the gain-independent fre- quency response that allows the full bandwidth of the • Headphone Distribution Amplifiers amplifier to be used over a wide range of gain • Headphone Drivers settings. The excess loop gain does not deteriorate at • Microphone Preamplifiers a rate of 20 dB/decade. 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. PowerPAD is a trademark of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2004, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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