A22H165

Active

High-performance class-G stereo headphone amplifier

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Product overview

Description

The A22H165 is a class-G stereo headphone driver dedicated to high-performance audio, high power efficiency and space-constrained applications. It is based on the core technology of a low power dissipation amplifier combined with a high efficiency step-down DC-DC converter for supplying this amplifier. When powered by a battery, the internal step down DC-DC 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). THD+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. The traditionally bulky output coupling capacitors can be removed. A dedicated common-mode sense pin removes parasitic ground noise. The A22H165 is designed to be used with an output serial resistor. It ensures unconditional stability over a wide range of capacitive loads. The A22H165 is packaged in a tiny 16-bump flip-chip package with a pitch of 400 μm.
  • All 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"
    • Gain settings: 0 dB and 6 dB
    • Integrated high efficiency step-down converter
    • Low standby current: 5 μA max
    • Output-coupling capacitors removed
    • Thermal shutdown
    • Flip-chip package: 1.65 mm x 1.65 mm, 400 μm pitch, 16 bumps

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STMicroelectronics - A22H165

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
A22H165J
Active
CSP P 0.4 mm Industrial Ecopack3

A22H165J

Package:

CSP P 0.4 mm

Material Declaration**:

PDF XML

Marketing Status

Active

Package

CSP P 0.4 mm

Grade

Industrial

RoHS Compliance Grade

Ecopack3

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
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Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
A22H165J No availability of distributors reported, please contact our sales office Buy Direct
Active
EAR99 NEC Tape And Reel CSP P 0.4 mm -40 85 FRANCE 0.3275 / 1k

A22H165J

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.3275 / 1k

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

CSP P 0.4 mm

Operating Temperature (°C)

(min)

-40

(max)

85

Budgetary Price (US$)* / Qty

0.3275 / 1k

Country of Origin

FRANCE

(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors