STEVAL-CCA025V1: Class G, Stereo Headphone Amp

Summary

The TS4621 is a class G stereo headphone driver dedicated to high audio performance and space-constrained applications.

It is based on a low-power dissipation amplifier core technology combined with a high efficiency buck converter to supply this amplifier.

When powered by a battery, the buck converter generates the appropriate voltage to the amplifier according to the amplitude of the audio signal to supply to the headsets.

An I²C interface offers volume control in 32 steps from -60 dB to +4 dB. A dedicated common-mode sense pin is used to remove parasitic noise from the jack.

Specifications

Manufacturer	STMicroelectronics
Category	Audio Amplifiers
Eval Board Part Number	497-11034-ND
Eval Board Supplier	STMicroelectronics
Eval Board	Normally In Stock
Amplifier Type	Class G
Number of Outputs	Stereo
Output Power (RMS) @ Load	36 mW @ 32 Ω
Voltage In	2.3 ~ 4.8 V
THD+N (1kHz) @ Conditions	< 0.006% @ 36 mW (32 Ω, 3.6V)
Features	Digital Gain Filterless Output I²C Interface Mute Short Circuit Protection Shutdown, Enable, Standby Thermal Protection Turn On/Off Depop
Efficiency @ Conditions	- Not Given
Standby Current [Typical]	600 nA
Quiescent Current [Typical]	1.2 mA
Component Count + Extras	14 + 24
Application / Target Market	Audio: MP3 Players Cell Phones Computers Portable Devices
Design Author	STMicroelectronics
Main I.C. Base Part	TS4621E
Quiescent Current [Maximum]	1.5 mA
Standby Current [Maximum]	5 µA
Date Created By Author	2010-04
Date Added To Library	2012-02