2.9 W/Channel Mono Class-D Audio Subsystem With DirectPath ™ Headphone Amplifier & SpeakerGuard ™

DESCRIPTION The TPA2051D3 is an Audio subsystem with a mono Class-D power Amplifier a stereo DirectPath Headphone Amplifier and bypass switches. The DirectPath Headphone Amplifier eliminates the need for external dc-blocking output capacitors. The built-in Charge Pump creates a negative supply voltage for the Headphone Amplifier allowing a 0 V dc bias at the output. The DirectPath Headphone Amplifier drives 25 mW into 16 Ω speakers from a 4.2 V supply. The subsystem includes three inputs: A differential mono input and two stereo single-ended (SE) inputs. The stereo inputs are also configurable as differential mono inputs. Each input channel has an independent Volume Control Seven operating modes provide input-to-output combinations and shutdown control. Operating mode and volume levels are controlled over a 1.8 V compatible I 2 C Interface The TPA2051D3 uses SpeakerGuard TM technology to prevent output clipping distortion and excessive power to the speaker and Headphones The Class-D Amplifier includes a bypass mode. This allows the baseband IC (BB) to directly drive the 8 Ω speaker. This is useful for dual-mode speaker phones in voice – only mode. The Class-D Amplifier uses 4.9 mA and the DirectPath Amplifier uses 4.1 mA of typical quiescent current. Total supply current reduces to less than 1 µ A in shutdown. The TPA2051D3 is available in a 25-bump 2,16 mm × 2,11 mm, 0,4 mm pitch WCSP with less than 0.8 mm height. By Texas Instruments
Part Manufacturer Description Datasheet Samples
TPA2051D3YFFR Texas Instruments 2.9-W 3-Input Audio Subsystem with SmartGain™ Mono Class-D and DirectPath Headphone Amplifier 25-DSBGA -40 to 85
TPA2051D3YFFT Texas Instruments 2.9-W 3-Input Audio Subsystem with SmartGain™ Mono Class-D and DirectPath Headphone Amplifier 25-DSBGA -40 to 85
TPA2051D3 's PackagesTPA2051D3 's pdf datasheet
TPA2051D3YFFR
TPA2051D3YFFT




TPA2051D3 Pinout, Pinouts
TPA2051D3 pinout,Pin out
This is one package pinout of TPA2051D3,If you need more pinouts please download TPA2051D3's pdf datasheet.

TPA2051D3 Application circuits
TPA2051D3 circuits
This is one application circuit of TPA2051D3,If you need more circuits,please download TPA2051D3's pdf datasheet.


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