TS4909

TS4909 Dual mode low power 150 mW stereo headphone amplifier with capacitor-less and single-ended outputs Datasheet − production data Features ■ No output coupling capacitors necessary ■ Pop-and-click noise reduction circuitry ■ Operating from VCC = 2.2 V to 5.5 V ■ Standby mode active low ■ Output power: – 158 mW at 5 V, into 16 Ω with 1% THD+N max (1 kHz) – 52 mW at 3.0 V into 16 Ω with 1% THD+N max (1 kHz) ■ Ultra-low current consumption: 2.0 mA typ. at 3V ■ Ultra-low standby consumption: 10 nA typ. ■ High signal-to-noise ratio: 105 dB typ. at 5 V ■ High crosstalk immunity: 110 dB (F = 1 kHz) for single-ended outputs ■ PSRR: 72 dB (F = 1 kHz), inputs grounded, for phantom ground outputs ■ Low tWU: 50 ms in PG mode, 100 ms in SE mode ■ Available in lead-free DFN10 3 x 3 mm DFN10 (3 x 3) Pin connections (top view) Vin1 Stdby SE/PHG Bypass Vin2 1 2 3 4 5 1 0 Vdd 9 Vout1 8 Vout3 7 Vout2 6 Gnd Functional block diagram Vdd SE/PHG Vin1 Vout1 Appli...