CS3511
Stereo 10 W High-efficiency Class-D Audio Power Amplifier
Features
Closed-loop Advanced
ΔΣ
Architecture
True Spread Spectrum Modulation
Premium Quality Audio Amplification
Common Applications
Active Speakers
Portable Media Player Docking Stations
Mini/Micro Shelf Systems
Digital Televisions
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–
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99 dB Dynamic Range - System Level
0.025% THD+N @ 5 W - System Level
-96 dB Channel Separation
General Description
The CS3511 is a high-efficiency class-D PWM amplifier
that integrates on-chip over-current, under-voltage,
over-temperature protection, and error reporting. An on-
board regulator generates a 5 VDC supply used
to power the internal low-voltage analog and digital cir-
cuitry. The low R
DS(ON)
outputs can source peak cur-
rents up to 2.7 A, deliver high efficiency, allow a small
device package, and lower power supply voltage levels.
The CS3511 is available in a 32-pin QFN package in
Commercial grade (-10°C to +70°C). The CRD3511
customer reference design is also available. Please re-
fer to
for complete
ordering information.
Four Selectable Amplifier Gain Settings
Integrated Protection and Automatic Recovery
for Over-current, Under-voltage, and Thermal
Overload
Single-supply Operation (Typ. = 9-12 V)
No Bootstrap Capacitors Required
Low-power Standby Mode
Supports Differential or Single-ended Inputs
Thermally Enhanced 32-pin, 6 x 6 mm QFN
Package Requires No External Heat Sink
Analog Power
Digital Power
5V
Regulator
12 V
Positive Input
Channel 1
Negative Input
MUTE
SLEEP
STATUS
Charge Pump
GAIN0
GAIN1
Gain
Control
VP
Channel 1
Processing
and
Modulation
Gate
Drive
Positive Output
Negative Output
Positive Input
Channel 2
Negative Input
Processing
and
Modulation
Channel 2
Gate
Drive
Positive Output
Negative Output
PGND
Preliminary Product Information
This document contains information for a new product.
Cirrus Logic reserves the right to modify this product without notice.
Copyright
Cirrus Logic, Inc. 2009
(All Rights Reserved)
AUG ‘09
DS845PP2
CIRRUS [ CIRRUS LOGIC ]
