TS4984

TS4984 2 x 1W Stereo audio power amplifier with active low standby mode ■ Operating from VCC=2.2V to 5.5V ■ 1W output power per channel @ VCC=5V, THD+N=1%, RL=8Ω ■ 10nA standby current ■ 62dB PSRR @ 217Hz with grounded inputs ■ High SNR: 100dB(A) typ. ■ Near-zero pop & click ■ Available in QFN16 4x4 mm, 0.5mm pitch, leadfree package Description The TS4984 has been designed for top of the class stereo audio applications. Thanks to its compact and power dissipation efficient QFN package, it suits various 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. An externally controlled standby mode control reduces the supply current to less than 10nA per channel. The device also features an internal thermal shutdown protection. The gain of each channel can be configured by external gain setting resistors. Pin Connections (top view) TS4984IQ — TQFN16 4x4mm IN- L IN+ L BYPASS L NC VO-L VO+L VCC1 VCC2 16 15 14 13 1 2 3 4 56 7 12 11 10 9 8 STBY BYPASS R IN+ R IN- R GND1 GND2 VO+R VO-R Applications ■ Cellular mobile phones ■ Notebook computers & PDAs Order Codes Part Number TS4984IQT Temperature Range -40, +85°C ■ LCD monitors & TVs ■ Portable audio devices Package QFN Packaging Tape & Reel Marking K984 January 2005 Revision 1 1/29 TS4984 Typical Application 1 Typical Application Figure 1 shows a schematic view of a typical audio amplification application using...