Class G capless headphone amplifier based on TS4621E

The STEVAL-CCA025V1 demonstration board is designed to aid in the evaluation of the TS4621E audio differential input stereo headphone amplifier. The TS4621E device is soldered on a four-layer PCB. An on-board RS-232 to I2C interface renders the board easy to control from a personal computer through a serial port.

The software provided with the board controls all features of the TS4621E, such as gain, mode, mute, standby and register status.

You can also use the connectors on the demonstration board to directly control the features through another I2C interface.

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
  • Zero pop and click
  • I2 C interface for volume control
  • Digital volume control range: -60 dB to +4 dB
  • 100 dB of SNR A-weighted at G = 0 dB
  • Independent right and left channel enable control
  • Integrated high-efficiency buck converter
  • Low standby current: 5 μA max
  • No output coupling capacitors (thanks to the internal negative supply)
  • Thermal shutdown and short-circuit protection
  • RoHS compliant

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Design

Technical Documentation

Product Specifications
Description Version Size
DB1035 DB1035: Class G capless headphone amplifier demonstration board based on the TS4621E 2.1 85 KB
Application Notes
Description Version Size
AN3145 AN3145: STEVAL-CCA025V1 demonstration board user guidelines for the TS4621 high-performance stereo headphone amplifier 1.2 1018 KB

Hardware Resources

Board Manufacturing Specifications
Description Version Size
STEVAL-CCA025V1 gerber files 1.0 322 KB
Bill of Materials
Description Version Size
STEVAL-CCA025V1 BOM 2.1 7 KB
Schematic Packs
Description Version Size
Board schematics 1.0 37 KB

Legal

License Agreement
Description Version Size
Demo products licence agreement 3.2 22 KB
Evaluation products license agreement 1.0 125 KB
Support & Community

Sample & Buy

Part Number Marketing Status Unit Price (US$) * Quantity Core Product ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
STEVAL-CCA025V1 Active 57.58 1 TS4621E NEC EAR99 ITALY MORE INFO Buy Direct Add to cart DISTRIBUTOR AVAILABILITY
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(*) 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

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
STEVAL-CCA025V1 ActiveCARDIndustrialEcopack2
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(**) 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.

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