TS4621E

TS4621E High-performance class-G stereo headphone amplifier with I2C volume control Features ■ Power supply range: 2.3 V to 4.8 V ■ 0.6 mA/channel quiescent current ■ 2.1 mA current consumption with 100 µW/channel (10 dB crest factor) ■ 0.006% typical THD+N at 1 kHz ■ 100 dB typical PSRR at 217 Hz ■ 100 dB of SNR A-weighted at G = 0 dB ■ Zero pop and click ■ I2C interface for volume control ■ Digital volume control range from -60 dB to +4 dB ■ Independent right and left channel shutdown control ■ Integrated high-efficiency buck converter ■ Low software standby current: 5 µA max ■ Output-coupling capacitors removed ■ Thermal shutdown and short-circuit protection ■ Flip-chip package: 1.65 mm x 1.65 mm, 400 µm pitch, 16 bumps Applications ■ Cellular phones, smart phones ■ Mobile internet devices ■ PMP/MP3 players Description The TS4621E is a class-G stereo headphone driver dedicated to high audio performance, high power efficiency and space-constrai...