STMicroelectronics TS4998
The TS4998 is designed for top-class stereo audio 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 10nA per channel.FEATURES
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● 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: 10nA typ. @ 217Hz with grounded inputs High SNR: 106dB(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)
● 80dB PSRR
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APPLICATIONS
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● Cellular mobile phones Notebook and PDA computers LCD monitors and TVs Portable audio devices
DESCRIPTION
Thanks to its compact and power-dissipation efficient QFN16 package with exposed pad, it suits a variety of applications. 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 33 Contents TS4998 Contents 1 2 3 4 Typical application schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .