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TAS2553 数据表(PDF) 1 Page - Texas Instruments |
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TAS2553 数据表(HTML) 1 Page - Texas Instruments |
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1 / 58 page  OUT- OUT+ PVDD VBOOST SW Ferrite bead (opt.) VREG VSENSE- VSENSE+ + - Ferrite bead (opt.) To Speaker + - Enable I2S 4 3 I2C PDM CLK Audio Input 10 nF 2 VBAT MCLK TAS2553 22 uF 2.2 uH Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TAS2553 SLAS978B – SEPTEMBER 2013 – REVISED FEBRUARY 2014 TAS2553 2.8-W Class-D Mono Audio Amplifier with Class-G Boost and Speaker Sense 1 Features 3 Description The TAS2553 is a high efficiency Class-D audio 1 • Analog or Digital Input Mono Boosted Class-D power amplifier with advanced battery current Amplifier management and an integrated Class-G boost • 2.8 W into 8 Ω Load from 3.6 V Supply (1% converter. The device constantly measures the THD+N) current and voltage across the load and provides a digital stream of this information. • Efficiency of 86% at Rated Power • I2S, Left-Justified, Right-Justified, DSP, PDM, and The Class-G boost converter generates the Class-D TDM Input and Output Interface amplifier supply rail. During low Class-D output power, the boost improves efficiency by deactivating • Input Sample Rates from 8 kHz to 192 kHz and connecting VBAT directly to the Class-D amplifier • High Efficiency Class-G Boost Converter supply. When high power audio is required, the boost – Automatically Adjusts Class-D Supply quickly activates to provide significantly louder audio than a stand-alone amplifier connected directly to the • Built-In Speaker Sense battery. – Measures Speaker Current and Voltage The AGC automatically adjusts Class-D gain to – Measures VBAT and VBOOST Voltages reduce battery current at end-of-charge voltages, • Built-In Automatic Gain Control (AGC) preventing output clipping, distortion and early system – Limits Battery Current Consumption shutdown. The fixed gain is adjustable via I2C. The gain range is -7 dB to +24 dB in 1 dB steps. • Adjustable Class-D Switching Edge-Rate Control • Power Supplies In addition to a differential mono analog input, the TAS2553 has built-in a 16-bit D/A converter used with – Boost Input: 3.0 V to 5.5 V a digital input. Moving the D/A converter from the – Analog: 1.65 V to 1.95 V digital host processor into the integrated amplifier – Digital I/O: 1.5 V to 3.6 V process provides better dynamic performance at lower system cost. Additionally, since the PCB routing • Thermal and Short-Circuit Protection is digital rather than analog, sensitivity to external • I2C Interface for Register Control perturbations such as GSM frame-rate noise is • Stereo Configuration Using Two TAS2553s decreased at the system level. – I2C Address Select Terminal (ADDR) • 2.855 mm x 2.575 mm, 0.4 mm Pitch 30-Ball Device Information WCSP ORDER NUMBER PACKAGE BODY SIZE TAS2553YFF WCSP (30) 2.855 mm x 2.575 mm 2 Applications • Mobile Phones • PND • Portable Audio Docks • Tablets • Gaming Devices 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
类似零件编号 - TAS2553_15 |
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类似说明 - TAS2553_15 |
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