A22H165MJ STMicroelectronics

A22H165M High-performance class-G stereo headphone amplifier with IC volume control Datasheet - production data Applications A22H165M - Flip-chip Cellular /smart phones, portable media players Wearable Fitness and healthcare Description Pinout (top view) The A22H165M is a class-G stereo headphone INRINR-- VOVOUTUTRR SCSCLL SDASDA DD driver dedicated to high audio performance, high power efficiency and space-constrained ININR+R+ CMCMSS PVSSPVSS C2C2 CC applications such as wearable and fitness. ININL+L+ HPHPVDVDDD C1C1 AGAGNNDD BB It is based on the core technology of a low power dissipation amplifier combined with a high ININL-L- VOVOUTUTLL AVAVDDDD SWSW AA efficiency buck converter for supplying this 4343 22 11 amplifier. Balls are underneath When powered by a battery, the buck converter generates the appropriate voltage to the amplifier depending on the amplitude of the audio signal to Features supply the headsets. It achieves a total 2.1 mA current consumption at 100 W output power (10 Power supply range: 2.3 V to 4.8 V dB crest factor). 0.6 mA/channel quiescent current THD+N is 0.02% maximum at 1 kHz and PSRR is 2.1 mA current consumption with 100 dB at 217 Hz, which ensures a high audio 100 W/channel (10 dB crest factor) quality of the device in a wide range of 0.006% typical THD+N at 1 kHz environments. 100 dB typical PSRR at 217 Hz The traditionally bulky output coupling capacitors 100 dB of SNR A-weighted at G = 0 dB can be removed. Zero pop and click A dedicated common-mode sense pin removes IC interface for volume control parasitic ground noise. Digital volume control range from -60 dB to The A22H165M is designed to be used with an +4 dB output serial resistor. It ensures unconditional stability over a wide range of capacitive loads. Independent right and left channel shutdown The A22H165M is packaged in a tiny 16-bump control flip-chip package with a pitch of 400 m. Integrated high-efficiency buck converter Low software standby current: 5 A max Output coupling capacitors removed Thermal shutdown and short-circuit protection Flip-chip package: 1.65 mm x 1.65 mm, 400 m pitch, 16 bumps August 2020 DocID026035 Rev 2 1/32 This is information on a product in full production. www.st.comContents A22H165M Contents 1 Absolute maximum ratings and operating conditions . 3 2 Typical application schematic . 5 3 Electrical characteristics . 7 4 Application information . 22 4.1 IC bus interface 22 4.1.1 IC bus operation 22 4.1.2 Control register CR2 - address 2 24 4.1.3 Control register CR1 - address 1 25 4.2 Wake-up and standby time definition 26 4.3 Common mode sense . 27 5 Package information 28 6 Ordering information . 30 7 Revision history . 31 2/32 DocID026035 Rev 2