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TAS2559YZR Datasheet(PDF) 7 Page - Texas Instruments |
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TAS2559YZR Datasheet(HTML) 7 Page - Texas Instruments |
7 / 107 page 7 TAS2559 www.ti.com SLASEE8 – NOVEMBER 2016 Product Folder Links: TAS2559 Submit Documentation Feedback Copyright © 2016, Texas Instruments Incorporated 7.5 Electrical Characteristics VBAT = 3.6V, AVDD = DVDD = IOVDD = 1.8 V, RESET = IOVDD, Gain = 16.4 dB, ERC = 14ns, Boost Inductor = 2.2 µH, RL = 8 Ω + 33 µH, 1-kHz input frequency, 48- kHz sample rate for digital input, Class-H Boost Enabled, TA= 25°C, ILIM = 3 A (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT BOOST CONVERTER Boost Output Voltage Average voltage (w/o including ripple). 8.5 V Boost Converter Switching Frequency 1.77 MHz Boost Converter Current Limit 3 A Boost Converter Max In-Rush Current High Efficiency Mode: Max inductor inrush and startup current after enable 4 A Normal Efficiency Mode: Max inductor inrush and startup current after enable 1.5 CLASS-D CHANNEL Output Voltage for Full-Scale Digital Input 6.6 VRMS Load Resistance (Load Spec Resistance) 3.6 8 Ω Class-D Frequency Avg Frequency in Spread-Spectrum Mode 384 kHz Fixed Frequency 44.1 × 8 48 × 8 Class-D + Boost Efficiency POUT = 3.5 W (sinewave) ROM Mode 1 80 % POUT = 0.5 W (sinewave) ROM Mode 1 87 Class-D Output Current Limit (Short Circuit Protection) VBOOST = 8.5 V, OUT– shorted to VBAT, VBOOST, GND 6 A Class-D Output Offset Voltage in Digital Input Mode –2.5 2.5 mV Programmable Channel Gain Accuracy ±0.5 dB Mute Attenuation Device in shutdown or device in normal operation and MUTED 150 dB VBAT Power Supply Rejection Ratio (PSRR) Ripple of 200 mVpp at 217 Hz 110 dB AVDD Power Supply Rejection Ratio (PSRR) Ripple of 200 mVpp at 217 Hz 99 dB THD+N 1 kHz, POUT = 0.1 W 0.0041 % 1 kHz, Po = 0.5 W 0.0036 1 kHz, Po = 1 W 0.0035 1 kHz, Po = 3 W 0.02 Output Integrated Noise (20 Hz-20 kHz) - 8 Ω A-wt Filter, DAC modulator switching 15.9 µV Signal-to-noise ratio Referenced to 1% THD+N at output, a- weighted 110.6 dB Max Output Power, 3-A Current Limit THD+N=1%, 8-Ω Load 3.7 W THD+N=1%, 6-Ω Load 4.5 THD+N=1%, 4-Ω Load 5 Startup Pop Digital Input, A-weighted output 10 mV Output Impedance in Shutdown /RESET = 0 V 10 kΩ Startup Time Time taken from end of configuring device in ROM mode1/2 to Speaker output signal in SPI mode running at 25 MHz with 48 ksps input 8 mS Shutdown Time Measured from time when device is programmed in software shutdown mode 100 µS |
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