CS3511 High Performance Stereo 10W Integrated Class-D Amplifier0 pages

| cs3511 1 Stereo 10 W High-efficiency Class-D Audio Power Amplifier Features ♦ Closed-loop Advanced AZ Architecture ♦ True Spread Spectrum Modulation ♦ Premium Quality Audio Amplification - 99 dB Dynamic Range - System Level - 0.025% THD+N @ 5 W - System Level - -104 dB Channel Separation ♦ 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, 6x6 mm QFN Package Requires No External Heat Sink Common Applications ♦ Active Speakers ♦ Portable Media Player Docking Stations ♦ Mini/Micro Shelf Systems ♦ Digital Televisions 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 RDS(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 "Ordering Information" on page 25 for complete ordering information. Positive Input Channel 1 Negative Input MUTE SLEEP STATUS GAIN0 GAIN1 Digital Power 5 V Regulator 12 V 0 VP Processing and Modulation Gate Drive Channel 1 Positive Output Negative Output Processing and Modulation Charge Pump Positive Input Channel 2 Negative Input Gate Drive Channel 2 Positive Output Negative Output PGND 1_F fCIRRUS LOG/C" Copyright © Cirrus Logic, Inc. 2009 dec '09 http://www.cirrus.com (Al1 Rights Reserved) ds845f1