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TPA2050D4YZKR
1.4-W/Ch 2-Input Audio Subsystem with Stereo Class-D and DirectPath™ Headphone Amplifier
1FEATURES
DESCRIPTION
APPLICATIONS
TPA2050D4
www.ti.com....................................................................................................................................................................................................... SLOS544–JULY
1.4 W/CH STEREO CLASS-D AUDIO SUBSYSTEM WITH DirectPath™ HEADPHONE
AMPLIFIER AND 2:1 INPUT MUX
23• Stereo Class-D Amp:•
Independent Shutdown for Headphone andDirectPath eliminates the need for external
Class-D Amplifiersblocking output capacitorsto the headphones.•
Short-Circuit and Thermal-Overload Protection built-in charge pump createsa negative supply•
±8 kV HBM ESD Protection on Headphone voltage for the headphone amplifier, allowinga
Outputs DC biasat the output.
I2 C™ Interface The DirectPath headphone amplifier gains are0•
25-Ball 2,61 mm× 2,61 mm WCSP (default), –6 dB, –12 dB, and –20 dB, selected
through the I2C interface. This allows the headphone
volumeto be different from the loudspeaker volume
both are used simultaneously.•
Smart Phones/ Cellular Phones Laptop Computers The TPA2050D4 hasa 2:1 input MUX for audio
source selection. The MUX has mode control which•
Portable Gamingdirects the input-to-output signal path. Mode and•
Portable Media Players controls operate from a 1.8 V compatible
