STMicroelectronics Class G headphone amplifier based on TS4621E STEVAL-CCA025V1 STEVAL-CCA025V1 Data Sheet

   

   

   

For further information contact your local STMicroelectronics sales office.

September 2011

Doc ID 17667 Rev 2

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Class G capless headphone amplifier

demonstration board based on the TS4621E

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Power supply range: 2.3 V to 4.8 V

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0.6 mA/channel quiescent current

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2.1 mA current consumption with 100 
µW/channel (10 dB crest factor)

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0.006% typical THD+N at 1 kHz

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100 dB typical PSRR at 217 Hz

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Zero pop and click

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I

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C interface for volume control

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Digital volume control range: -60 dB to +4 dB

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100 dB of SNR A-weighted at G = 0 dB

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Independent right and left channel enable 
control

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Integrated high-efficiency buck converter

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Low standby current: 5 µA max

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No output coupling capacitors (thanks to the 
internal negative supply)

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Thermal shutdown and short-circuit protection

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RoHS compliant

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 I

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C 

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 I

2

C interface.