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TAS2770 Datasheet(PDF) 1 Page - Texas Instruments |
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TAS2770 Datasheet(HTML) 1 Page - Texas Instruments |
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1 / 85 page  SDOUT FSYNC SBCLK OUT_P OUT_N Class-D Amplifier with IV-Sense VREG SDZ DAC System Interface + Limiter 4.5-16 V SAR ADC TMP SNS Pop/Click Over Current Over Temp Protection SDIN IV-SNS ADCs SDA SCL IRQZ VSNS_P VSNS_N BST_P BST_N MODE fb fb VREG 1.8 V 1.8 V Copyright © 2016, Texas Instruments Incorporated Product Folder Order Now Technical Documents Tools & Software Support & Community 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. ADVANCE INFORMATION for pre-production products; subject to change without notice. TAS2770 SLASEM6 – OCTOBER 2017 TAS2770 15-W Digital Input Mono Class-D Audio Amplifier with Speaker I/V Sense 1 1 Features 1 • High-Performance Mono Class-D Amplifier – 20-W Peak at 1% THD+N (4 Ω, 16 V) – 15-W at 1 % THD+N (4 Ω, 12.6 V) – 14.2-W 0.1 % THD+N (4 Ω, 12.6 V) – 9-W at 1 % THD+N (8 Ω, 12.6 V) – 8.2-W at 0.1 % THD+N (4 Ω, 8.4 V) – 6.2-W at 0.1 % THD+N (4 Ω, 8.4 V) – 3.6-W at 0.1 % THD+N (8 Ω, 8.4 V) • 0.03 % THD+N at 1 W (4 Ω, VBAT = 12.6 V) • 32-µVrms A-Weighted Idle Channel noise • 90-dB PSRR with 200 mVPP Ripple at 20 - 20 kHz • 80% Efficiency at 1 W (4 Ω, VBAT = 12.6 V) • < 1 µA HW Shutdown VBAT Current • 42 mW / 63 mW Idle Dissipation (8.4 V / 12.6 V) • Speaker Voltage and Current Sense • Real-Time Diagnostics Using I/V Speaker Sense – Over Current – Short Circuit(short to power, short to ground and terminal-to-terminal short) – Over-Temperature • VBAT Tracking Peak Voltage Limiter with Brown Out Prevention • 44.1-kHz to 192-kHz Sample Rates • Flexible User Interfaces – I2S/TDM: 8 Channels (32-bit / 96 kHz) – I2C: 8 selectable Addresses • MCLK Free Operation • Low Pop and Click • Power Supplies – VBAT: 4.5 V to 16 V – AVDD: 1.8 V • Spread-Spectrum Low EMI Mode • Thermal and Over Current Protection • 26-pin, 0.4-mm pitch, 3.5 mm × 4 mm QFN (RJQ) Package 2 Applications • Laptop Computers • Bluetooth Speakers • Home Automation • Smart Speakers/IoT 3 Description The TAS2770 is a mono, digital input Class-D audio amplifier optimized for efficiently driving high peak power into small loudspeakers. The Class-D amplifier is capable of delivering 14.2 W of peak power into a 4-Ω load while sustaining 11.6 W continuously with less than 0.03 % THD+N at a battery voltage of 12.6 V. Integrated speaker voltage and current sense provides for real time monitoring of loudspeaker behavior. A battery tracking peak voltage limiter with brown out prevention optimizes amplifier headroom over the entire charge cycle of 2S or 3S battery systems. Up to eight devices can share a common bus via either I2S/TDM + I2C. The TAS2770 device is available in a 26-pin, 0.4-mm pitch QFN for a compact PCB footprint. Table 1. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) TAS2770 QFN 3.5 mm × 4 mm TAS2770 DSBGA 2 mm × 2.52 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Figure 1. Functional Block Diagram |
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