Texas Instruments TPA2051D3YFFR
- Part Number:
- TPA2051D3YFFR
- Manufacturer:
- Texas Instruments
- Ventron No:
- 3831058-TPA2051D3YFFR
- Description:
- 2.9-W, mono, analog input Class-D audio amplifier with 25-mW headphone driver
- Datasheet:
- tpa2051d3
- Audio input typeAnalog Input
- ArchitectureClass-D
- Speaker channels (max)Mono
- RatingCatalog
- Power stage supply (max) (V)5.5
- Power stage supply (min) (V)2.5
- Load (min) (Ω)8
- Output power (W)2.9
- SNR (dB)97
- THD N at 1 kHz (%)0.04
- Iq (typ) (mA)6.3
- Control interfaceI2C
- Closed/open loopOpen
- Analog supply (min) (V)2.5
- Analog supply (max) (V)5.5
- PSRR (dB)75
- Operating temperature range (°C)-40 to 85
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 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 I2C interface.
The TPA2051D3 uses SpeakerGuardTM 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 speaker. This is useful for dual-mode speaker phones in voiceonly 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 µA 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.
2.9-W, mono, analog input Class-D audio amplifier with 25-mW headphone driver 25-DSBGA -40 to 85
EAR99 TPA2051 Tape & Reel (TR) Depop I2C Input Multiplexer Short-Circuit and Thermal Protection Shutdown Volume Control audio amplifier 5V 425mum 2.9W x 1 @ 4Ohm; 25mW x 2 @ 16Ohm 8.5mA
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