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Analog Devices - Class-D Audio Power Amplifier

Numéro de référence ADAU1592
Description Class-D Audio Power Amplifier
Fabricant Analog Devices 
Logo Analog Devices 





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ADAU1592 fiche technique
Class-D Audio Power Amplifier
ADAU1592
FEATURES
GENERAL DESCRIPTION
Integrated stereo modulator and power stage
0.005% THD + N
101 dB dynamic range
PSRR > 65 dB
RDS-ON < 0.3 Ω (per transistor)
Efficiency > 90% (8 Ω)
EMI-optimized modulator
On/off-mute pop-noise suppression
Short-circuit protection
Overtemperature protection
APPLICATIONS
The ADAU1592 is a 2-channel, bridge-tied load (BTL)
switching audio power amplifier with an integrated Σ-Δ
modulator.
The modulator accepts an analog input signal and generates
a switching output to drive speakers directly. A digital,
microcontroller-compatible interface provides control of reset,
mute, and PGA gain as well as output signals for thermal and
overcurrent error conditions. The output stage can operate
from supply voltages ranging from 9 V to 18 V. The analog
modulator and digital logic operate from a 3.3 V supply.
Flat panel televisions
PC audio systems
Mini-components
FUNCTIONAL BLOCK DIAGRAM
PGA0 PGA1
AINL
SLC_TH
AINR
AVDD
VREF
AGND
DVDD
DGND
PGA
SLICER
Σ-Δ
MODULATOR
LEVEL SHIFT
AND DEAD
TIME CONTROL
PGA
PGA0 PGA1
VOLTAGE
REFERENCE
fCLK/2
CLOCK
OSCILLATOR
MODE CONTROL
LOGIC
PVDD
A1 OUTL+
A2 PGND
PVDD
B1 OUTL–
B2 PGND
PVDD
C1 OUTR+
C2 PGND
PVDD
D1 OUTR–
D2 PGND
TEMPERATURE/
OVERCURRENT
PROTECTION
XTI XTO MO/ST STDN MUTE ERR OTW
Figure 1.
ADAU1592
Rev. A
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 or other
rights of third parties that may result from its use. Specifications subject to change without notice. No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
©2007 Analog Devices, Inc. All rights reserved.

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