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Product Detailed Parameters
- Description：IC AMP CLASS G STEREO 16FLIPCHIP
- Series：-
- Mfr：STMicroelectronics
- Package：Tape & Reel (TR),Cut Tape (CT)
- Type：Class G
- Output Type：2-Channel (Stereo)
- Max Output Power x Channels @ Load：-
- Voltage - Supply：2.3V ~ 4.8V
- Features：Depop, Thermal Protection
- Mounting Type：Surface Mount
- Supplier Device Package：16-FlipChip (1.65x1.65)
- Package / Case：16-WFBGA, FCBGA
- Operating Temperature：-40°C ~ 85°C (TA)
- Grade：-
- Qualification：-
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Overview
The A22H165J is a Class-G stereo headphone driver designed for high audio performance and power efficiency in space-constrained applications. It integrates a low-power amplifier with a high-efficiency step-down DC-DC converter that adjusts voltage based on signal amplitude. Key electrical parameters include a supply range of 2.3 V to 4.8 V, 0.6 mA/channel quiescent current, and 2.1 mA consumption at 100 μW output (10 dB crest factor). It achieves 0.006% typical THD+N at 1 kHz, 100 dB typical PSRR at 217 Hz, and 100 dB SNR. The device features gain settings of 0 dB and 6 dB, zero pop-and-click, and thermal shutdown.
Feature Summary
- Integrates a high-efficiency step-down DC-DC converter to optimize battery life by adjusting amplifier voltage according to audio signal amplitude.
- Eliminates the need for bulky output coupling capacitors, reducing component count and board space.
- Includes a dedicated common-mode sense pin to remove parasitic ground noise and ensure unconditional stability with serial output resistors.
Applications
- Smartphones
- Tablets
- Media players
Procurement Notes
Verify the specific suffix 'J' against official STMicroelectronics documentation to confirm package variant or temperature grade distinctions. Ensure compatibility with the required 1.65x1.65 mm flip-chip footprint and 400 μm pitch during procurement planning.
Selection Notes
Select this component for portable devices requiring high-fidelity audio with minimal power drain. The integrated buck converter makes it suitable for battery-operated systems where extending runtime is critical without compromising sound quality.
Part Context
This part belongs to STMicroelectronics' ultra-low-power amplifier portfolio, specifically targeting mobile audio solutions. It combines Class-G architecture with advanced noise reduction techniques to deliver superior performance in compact form factors.
Replacement Considerations
No verified public substitute part numbers are available in the provided data. Consult official STMicroelectronics resources for potential cross-references.
