ADAU1513 Datasheet, PDF (1/16 Pages) Analog Devices – Class-D Audio Power Stage

FEATURES
Integrated stereo power stage
RDS-ON < 0.3 Ω (per transistor)
Efficiency > 90%
Short-circuit protection
Overtemperature protection
APPLICATIONS
Flat panel televisions
PC audio systems
Mini components
INL+
INL–
INR+
INR–
AVDD
AGND
DVDD
Class-D Audio Power Stage
ADAU1513
GENERAL DESCRIPTION
The ADAU1513 is a 2-channel bridge-tied load (BTL)
Class-D audio power stage. The power stage can drive the
speaker loads of 4 Ω at up to 15 W per channel at high
efficiency. The 4-channel audio system can be formed when
used with an ADAV4201 pulse-width modulator (PWM)
processor using two ADAU1513s. The power stage accepts a
3.3 V logic differential PWM as input from an ADAV4201
processor. The power stage comprises thermal and output
short-circuit protection with logic-level error flag outputs for
interfacing to a system microcontroller along with reset and
mute control of the power stage. The power stage operates from
a range of power supply voltages from 9 V up to 18 V. The low
power digital logic operates from a 3.3 V supply. The power
stage can be used with modulators other than the ADAV4201.
Contact your local sales department for application assistance.
FUNCTIONAL BLOCK DIAGRAM
LEVEL SHIFT
AND DEAD
TIME CONTROL
VOLTAGE
REFERENCE
PVDD
A1
OUTL+
A2
PGND
PVDD
B1
OUTL–
B2
PGND
PVDD
C1
OUTR+
C2
PGND
PVDD
D1
OUTR–
D2
PGND
MODE CONTROL
LOGIC
TEMPERATURE/
OVERCURRENT
PROTECTION
DGND STDN MUTE ERR OTW
Figure 1.
ADAU1513
Rev. 0
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