A22H165M

High-performance class-G stereo headphone amplifier with I2C volume control; Power supply range: 2.3 V to 4.8 V\n0.6 mA/channel quiescent current\n2.1 mA current consumption with 100 μW/channel (10 dB crest factor)\n0.006% typical THD+N at 1 kHz\n100 dB typical PSRR at 217 Hz\n100 dB of SNR A-weighted at G = 0 dB\nZero pop and click\nI²C interface for volume control\nDigital volume control range from -60 dB to +4 dB\nIndependent right and left channel shutdown control\nIntegrated high-efficiency buck converter\nLow software standby current: 5 μA max\nOutput coupling capacitors removed\nThermal shutdown and short-circuit protection\nFlip-chip package: 1.65 mm x 1.65 mm, 400 μm pitch, 16 bumps\n;

The A22H165M is a class-G stereo headphone driver dedicated to high audio performance, high power efficiency and space-constrained applications such as wearable and fitness.\nIt is based on the core technology of a low power dissipation amplifier combined with a high efficiency buck converter for supplying this amplifier.\nWhen powered by a battery, the buck converter generates the appropriate voltage to the amplifier depending on the amplitude of the audio signal to supply the headsets. It achieves a total 2.1 mA current consumption at 100 μW output power (10 dB crest factor).\nTHD+N is 0.02% maximum at 1 kHz and PSRR is 100 dB at 217 Hz, which ensures a high audio quality of the device in a wide range of environments.\nThe traditionally bulky output coupling capacitors can be removed.\nA dedicated common-mode sense pin removes parasitic ground noise.\nThe A22H165M is designed to be used with an output serial resistor. It ensures unconditional stability over a wide range of capacitive loads. The A22H165M is packaged in a tiny 16-bump flip-chip package with a pitch of 400 μm.\n

A22H165M

Integrated high-efficiency buck converter

A22H165

High-performanceclass-Gstereoheadphoneamplifier