ADAU1590 Datasheet (data sheet) PDF





ADAU1590 Datasheet, Class-D Audio Power Amplifier

ADAU1590   ADAU1590  

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Class-D Audio Power Amplifier ADAU1590 F EATURES Integrated stereo modulator and power stage 0.005% THD + N 101 dB dyna mic range PSRR >55 dB RDS-ON < 0.3 Ω ( per transistor) Efficiency > 90% (8 Ω) EMI-optimized modulator On/off-mute po p-noise suppression Short-circuit prote ction Overtemperature protection GENER AL DESCRIPTION The ADAU1590 is a 2-chan nel, bridge-tied load (BTL) switching a udio power amplifier with an integrated Σ-Δ modulator. The modulator accepts an analog input signal and generates a switching output to drive speakers dir ectly. A digital, microcontroller-compa tible interface provides control of res et, mute and PGA gain as well

ADAU1590 Datasheet, Class-D Audio Power Amplifier

ADAU1590   ADAU1590  
as output signals for thermal and overc urrent error conditions. The output sta ge can operate from supply voltages ran ging from 9 V to 15 V. The analog modul ator and digital logic operate from a 3 .3 V supply. APPLICATIONS Flat panel t elevisions PC audio systems Mini-compon ents FUNCTIONAL BLOCK DIAGRAM PGA0 PGA 1 PVDD www.DataSheet4U.com AINL PGA A1 A2 OUTL+ PGND PVDD B1 SLC_TH SLIC ER Σ-Δ MODULATOR B2 OUTL– PGND PVD D LEVEL SHIFT AND DEAD TIME CONTROL C 1 C2 AINR PGA OUTR+ PGND PVDD PGA0 AV DD PGA1 D1 D2 OUTR– PGND VREF AGN D DVDD DGND VOLTAGE REFERENCE fCLK/2 CLOCK OSCILLATOR MODE CONTROL LOGIC TEM PERATURE OVERCURRENT PROTECTION XTI X TO MO/ST STDN MUTE ERR OTW Figure 1. Rev. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents o r other rights of third parties that ma y result from its use. Specifications s ubject to change without notice. No lic ense is granted by implication or other wise under any patent or patent rights of Analog Devices. Trademarks and regis tered trademarks are the property of th eir respective owners. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9 106, U.S.A. Tel: 781.329.4700 www.analog.com Fax: 781.461








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