Descriptionthe TS4961T1, a mono Class-D speaker driver with power audio switch, dedicated to high audio performances and space-constrained applications.The chip has two functions: the first is an audio Class-D amplifier, and the second is a dual-power analog switch.Both functions can be used separately (for two two audio sources to one speaker). Thanks to the output configuration possibilities, the power supply pins, the I/O pins and the standby pins are separated. It is also possible to control both switches separately.The TS4961T device is soldered on the two-layer evaluated separately or together through connectors on the demonstration board.STEVAL-CCA013V1www.st.com Circuit schematics and BOM listSTEVAL-CCA013V12/5 Doc ID 15790 Rev 11 Circuit schematics and BOM listFigure 1.Schematic diagramTable 1.Component list for the demonstration boardNameQuantityDescriptionC1, C22100nF/50V X7R, +/-10%, SMD ceramic capacitors, 0603C3, C421F/10V X5R, +/-10%, SMD ceramic capacitors 0603R1, R2215 Features Power supply range: 2.4 V to 4.3 VAudio amplifier standby mode active low Ultra high-off-isolation on analog switch: -80 dB typical Output power: 1.6 W at 4.2 V into 4 W with 1% THD+N maximumAdjustable gain via external resistorsLow current consumption 2 mA at 3 VEfficiency: 88% typicalSignal-to-noise ratio: 85 dB typicalPSRR: 63 dB typical at 217 Hz with 6 dB gainThermal shutdown protectionBreak before make delay switching timeQFN16 package 3mm x 3mm, 450 m pitchDescriptionthe TS4961T1, a mono Class-D speaker driver with power audio switch, dedicated to high audio performances and space-constrained applications.The chip has two functions: the first is an audio Class-D amplifier, and the second is a dual-power analog switch.Both functions can be used separately (for two two audio sources to one speaker). Thanks to the output configuration possibilities, the power supply pins, the I/O pins and the standby pins are separated. It is also possible to control both switches separate Data briefJune 2009Doc ID 15790 Rev 11/55STEVA