Low Power Audio Amplifier CS35L00/01/03 3W Mono Class-D Audio Amplifier with Low Idle Current MODE LDO Filter VBATT 2.5 V - 5.5 V CS35L00 Low Drop-Out Voltage Regulator Class-H Controller Shutdown Gain Audio In + CS35L00 10-pin DFN (actual size: 3 mm x 3 mm) Gain Select Audio In - Gate Drivers with Edge Rate Control Advanced Modulator with Dithered Spectrum Gain Short Circuit/ Thermal Protection Internal Oscillator GND CS35L01/03 OVERVIEW CS35L01/03 9-ball WLCSP (actual size: 1.2 mm x 1.2 mm) Market Applications Smartphones UMPC/MID Docking Stations Active Speakers Portable Gaming Cirrus Logic, Inc. 2901 Via Fortuna Austin, Texas 78746 The CS35L00, L01 and L03 are a family of low-power audio amplifiers with Cirrus Logic's proprietary Hybrid Class-D Architecture, designed specifically for today's mobile applications. Combining the benefits of both linear and switching amplifier technologies, its Hybrid Class-D architecture offers best-in-class idle power consumption and low radiated emission while maintaining high output power efficiency and superior audio quality. The CS35L0X family has the industry's lowest quiescent current at less than 1mA. When used with no external filter components, it is at least 40 percent lower than the closest competitor in the market today. Furthermore, the Hybrid Class-D Architecture allows designers to optimize their system performance with external components if needed, such as with an external shunt cap without sacrificing significant power consumption when idle. Quiescent Current Comparison 12 10 Toll-Free +1-800-888-5016 Sales Support North America +1 800-625-4084 Asia Pacific +852 2376-0801 Japan +81 (3) 5226-7757 Europe/UK +44 (90) 1628-891-300 learn more at www.cirrus.com Quiescent Current (mA)* United States T +1-512-851-4000 Speaker Out + Speaker Out - Gate Drivers with Edge Rate Control This flexible Hybrid Class-D output stage offers four modes of operation: Standard Class-D (SD) mode offers full audio bandwidth and high audio performance Hybrid Class-D (HD) mode offers a substantial reduction in idle power consumption with an integrated Class-H controller Reduced Frequency Class-D (FSD) mode reduces the output switching frequency, producing lower electromagnetic interference (EMI) Reduced Frequency Hybrid Class-D (FHD) mode produces both the lower idle power consumption of HD mode and the reduced EMI benefits of FSD mode Requiring minimal external components and PCB space, the CS35L00 is available in 3 mm x 3 mm, 10-pin DFN package and the CS35L01/03 are available in a 1.2 mm x 1.2 mm, 9-ball WLCSP package with Commercial temperature grade (-10C to +70C). For the full datasheet, visit www.cirrus.com/support. 8 6 4 2 0 0nF 1nF Output Shunt Capacitor Value 2nF Competitor Solutions Low Power Audio Amplifier | C S 3 5 L 0 0 / 01/ 0 3 CS35L00/01/03 Features DEMONSTRATION BOARD CDB35L00 REFERENCE BOARD CRD35L01 Hybrid Class-D Architecture * * * * 1 x 3.0 W into 4 (10% THD+N) 1 x 2.3 W into 4 (1% THD+N) 1 x 1.7 W into 8 (10% THD+N) 1 x 1.4 W into 8 (1% THD+N) Ultra-low Power Consumption * <1 mA Quiescent Current Advanced Closed-loop Modulation * * * * * 98 dB Signal-to-Noise Ratio (A-Weighted) 0.02% THD+N @ 1 W (SD & HD Mode) -85 dB Power Supply Rejection Ratio @ 217Hz -70 dB Common Mode Rejection Ratio Integrated Protection and Automatic Recovery for Output Short-circuit and Thermal Overload * Pop and Click Suppression (Chip shown at actual size) Available in Low-profile 10-pin DFN or 9-ball WLCSP * CS35L00: +6 dB or +12 dB Selectable Gain * CS35L01: +6 dB default Gain * CS35L03: +12 dB default Gain Package Comments Gain Power Supply (V) Channels PSRR (dB) THD+N % Dynamic Range (dB) Power (W) Part product selector CS35L00 3.0 98 0.02 -85 1 2.5 to 5.5 Selectable +6/+12 dB Hybrid Class-D architecture, < 1mA quiescent current 10 DFN CS35L01 3.0 98 0.02 -85 1 2.5 to 5.5 +6 dB Hybrid Class-D architecture, < 1mA quiescent current 9 WLCSP CS35L03 3.0 98 0.02 -85 1 2.5 to 5.5 +12 dB Hybrid Class-D architecture, < 1mA quiescent current 9 WLCSP (c) 2010 Cirrus Logic, Inc. All rights reserved. Product information is subject to change without notice. Cirrus Logic, Cirrus and the Cirrus Logic logo design are trademarks of Cirrus Logic, Inc. Other brand and product names may be trademarks or service marks of their respective owners. Product Bulletin 823111-0610-PB