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  • The TS4621E is a class-G stereo headphone driver dedicated to high audio performance, 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 buck converter for supplying this amplifier.
    When 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).
    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 TS4621E is designed to be used with an output serial resistor. It ensures unconditional stability over a wide range of capacitive loads.
    The TS4621E is packaged in a tiny 16-bump flip-chip package with a pitch of 400 μm.

    Key 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

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Related Applications

Audio and Video

All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      STEVAL-CCA025V1

      Active

      Class G capless headphone amplifier based on TS4621E

      Audio IC Eval Boards --
      STEVAL-CCA025V1

      Description:

      Class G capless headphone amplifier based on TS4621E

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STMicroelectronics - TS4621E

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
TS4621EIJT
Active
Chip Scale Package 0.4mm pitch Industrial Ecopack3

TS4621EIJT

Package:

Chip Scale Package 0.4mm pitch

Material Declaration**:

PDF XML

Marketing Status

Active

Package

Chip Scale Package 0.4mm pitch

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
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Country of Origin
Budgetary Price (US$)*/Qty
min
max
TS4621EIJT Available at 1 distributors

Distributor availability ofTS4621EIJT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 100 1 Order Now

Distributor reported inventory date: 2020-11-21

Distributor Name

DIGIKEY

Stock

100

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-21

Buy Direct
Active
EAR99 NEC Tape And Reel Chip Scale Package 0.4mm pitch -40 85 CHINA 0.497 / 1k

TS4621EIJT

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.497 / 1k

Distributor availability ofTS4621EIJT

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 100 1 Order Now

Distributor reported inventory date: 2020-11-21

Distributor Name

DIGIKEY

Stock

100

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-21

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

Chip Scale Package 0.4mm pitch

Operating Temperature (°C)

(min)

-40

(max)

85

Budgetary Price (US$)* / Qty

0.497 / 1k

Country of Origin

CHINA

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