TS4998 Datasheet | STMicroelectronics

2 x 1W differential input stereo audio amplifier Features - - - QFN16 4x4mm Operating range from VCC= 2.7V to 5.5V 1W output power per channel @ VCC=5V, THD+N=1%, RL=8Ω Ultra low standby consumption: 10n A typ. @ 217Hz with grounded inputs High SNR: 106d B(A) typ. Fast startup time: 45ms typ. Pop&click-free circuit Dedicated standby pin per channel Lead-free QFN16 4x4mm package Pin connections (top view) - 80d B PSRR .. - - - - - Applications - - - - Cellular mobile phones Notebook and PDA puters LCD monitors and TVs Portable audio devices Description The TS4998 is designed for top-class stereo audio applications. Thanks to its pact and power-dissipation efficient QFN16 package with exposed pad, it suits a variety of applications. With a BTL configuration, this audio power amplifier is capable of delivering 1W per channel of continuous RMS output power into an 8Ω load @ 5V. Each output channel (left and right), also has its own external controlled standby mode pin to reduce the supply current to less than 10n A per channel. The device also Features an internal thermal shutdown protection. The gain of each channel can be configured by external gain setting resistors. December 2007 Rev 1 1/33 .st. 33 Contents Contents 1 2 3 4 Typical application schematics - - - - - - . . 3...