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TPA2050D4 Status: ACTIVE

1.4-W/Ch 2-Input Audio Subsystem with Stereo Class-D and DirectPath™ Headphone Amplifier


      
         
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See Also

  • TPA2012D2 - Stereo Class-D Amplifier Only
  • TPA6130A2 - Stereo DirectPath Headphone Amplifier with I2C Volume Control Only
  • TPA6132A2 - Stereo DirectPath Headphone Amplifier Only
 TPA2050D4TPA2051D3 TPA2054D4 
Speaker ChannelsStereo  Mono  Stereo  
Speaker Output Power/Ch(W)1.4  2.9  2.4  
Speaker Min Load(Ohms)8  4  4  
Speaker PSRR(dB)77.7  75  77.7  
Headphone ChannelsStereo  Stereo  Stereo  
Headphone Output Power/Ch(mW)145  25  145  
Headphone Min Load(Ohms)16  16  16  
Headphone PSRR(dB)78.5  80  78.5  
No. of Inputs2 SE Stereo or 1 Diff Stereo  1 Dif-mono; 2 SE stereo  2 SE Stereo, 1 Diff Mono  
Supply(V)2.5 - 5.5  2.5 - 5.5  2.5 - 5.5  
Iq per channel(Typ)(mA)15.8  3.5  15.8  
ISD(uA)0.15  0.20  0.15  
Operating Temp Range(Celsius)-40 to 85  -40 to 85  -40 to 85  
Pin/Package25DSBGA  25DSBGA  25DSBGA  
 SamplesSamplesSamples
 InventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TPA2051D3: 2.9-W 3-Input Audio Subsystem with SmartGain&#153 Mono Class-D and DirectPath&#1 Headphone Amplifier
  • TPA2054D4: 2.4 W/Ch 3-Input Audio Subsystem with Stereo Class-D and DirectPath&#153 Headphone Amplifier
  • MSP430F148: 16-Bit Ultra-Low-Power Microcontroller, 48 kB Flash, 2KB RAM, 12 bit ADC, 2 USARTs, HW multiplier

Product Information

Features

  • Stereo Class-D Amp:
    • 1.4 W into 8 Ω from 5.0 V (10% THD + N)
    • 1.25 W into 8 Ω; from 5.0 V (1% THD + N)
  • DirectPath™ Stereo Headphone Amplifier
    • No Output Capacitors Required
  • Gain Select for Headphone Amplifier
  • Eight Programmable Maximum Headphone Voltage Limits
  • Two Single-Ended or One Differential Stereo Input
  • 2:1 Input MUX with Mode Control
  • 32-Step Volume Control for Both Input Channels
  • Independent Shutdown for Headphone and Class-D Amplifiers
  • Short-Circuit and Thermal-Overload Protection
  • ±8 kV HBM ESD Protection on Headphone Outputs
  • I2C Interface
  • 25-Ball 2,61 mm × 2,61 mm WCSP
  • APPLICATIONS
    • Smart Phones / Cellular Phones
    • Laptop Computers
    • Portable Gaming
    • Portable Media Players

Description

The TPA2050D4 features a stereo Class-D poweramplifier along with a stereo DirectPath headphone amplifier. The TPA2050D4 has two stereo single-ended (SE) inputs that can be configured as one stereo differential input. Both input channels have a 32-step volume control and the DirectPath headphone amplifier has a 4-level gain control for coarse volume adjustment. All amplifiers have output short-circuit and thermal-overload protection.

The Class-D amplifiers deliver 1.25 W into 8 Ω at 1% THD from a 5.0 V supply, and 700 mW from 3.6 V. The DirectPath headphone amplifier features an output voltage limiter to reduce the maximum output power to one of seven possible limits. The voltage limiter is programmed through the I2C interface.

DirectPath eliminates the need for external DC- blocking output capacitors to the headphones. 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 gains are 0 dB (default), -6 dB, -12 dB, and -20 dB, selected through the I2C interface. This allows the headphone volume to be different from the loudspeaker volume if both are used simultaneously.

The TPA2050D4 has a 2:1 input MUX for audio source selection. The MUX has mode control which directs the input-to-output signal path. Mode and gain controls operate from a 1.8 V compatible I2C interface.

The voltage supply range for both the Class-D amplifiers and the headphone charge pump is 2.5 V to 5.5 V. The Class-D amplifiers use a combined 7 mA and the headphone amplifier uses 10 mA of typical quiescent current. Total supply current reduces to less than 2µA.

The TPA2050D4YZK is available in a 25-ball 2.61 mm × 2.61 mm WCSP package.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsPackage QTY | Package CarrierSamples
TPA2050D4YZKRACTIVE-40 to 851.25 | 1kuDSBGA (YZK) | 25 3000 | LARGE T&R
TPA2050D4YZKTACTIVE-40 to 851.40 | 1kuDSBGA (YZK) | 25 250 | SMALL T&RPurchase Samples

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 10:15 AM GMT, 08 Nov 2009
RegionCompanyIn StockPurchase
TI Lead Time*: 4 WeeksTPA2050D4YZKR
AmericasNewark >1k
AsiaFarnell Asia 20
EuropeFarnell 20
WorldwideDigiKey >1k
TI Lead Time*: 4 WeeksTPA2050D4YZKT
AmericasArrow 250
Avnet 250
AsiaFarnell Asia 250
WPI 150
EuropeAvnet-SILICA 250
EBV Elektronik 125
Farnell 250
Spoerle 250
WorldwideDigiKey  Available
Mouser Electronics 250
View all Distributors  

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

 Product ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
TPA2050D4YZKR RoHS Compliant Green (RoHS & no Sb/Br) SNAGCU Level-1-260C-UNLIMViewView
TPA2050D4YZKT RoHS Compliant Green (RoHS & no Sb/Br) SNAGCU Level-1-260C-UNLIMViewView

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for TPA2050D4 Help

Datasheet

User Guides

Tools & Software

NamePart # Company Tool / Software Type
TPA2050D4 Evaluation Module (EVM)TPA2050D4EVMTexas InstrumentsDevelopment Boards/EVMs
Quick Search Selection Tool for AudioAUDIO_SELECTION_TOOLTexas InstrumentsFree Evaluation Tools

Part # Name Product Family Comments
TPA2012D2   2.1-W Stereo Class-D Audio Amplifier with Gain Select (TPA2012)   DIGITAL AMPLIFIER SOLUTIONS - ANALOG-INPUT CLASS-D SPEAKER AMPLIFIERS   Stereo Class-D Amplifier Only  
TPA6130A2   138-mW DirectPath&#153 Stereo Headphone Amplifier with I2C Volume Control (TPA6130)   AUDIO AMPLIFIERS - HEADPHONE AMPLIFIERS   Stereo DirectPath Headphone Amplifier with I2C Volume Control Only  
TPA6132A2   25-mW DirectPath&#153 Stereo Headphone Amplifier with Pop Suppression (TPA6132)   AUDIO AMPLIFIERS - HEADPHONE AMPLIFIERS   Stereo DirectPath Headphone Amplifier Only  
Customers Who Evaluated This Product Also Evaluated...
TPA2051D3 2.9-W 3-Input Audio Subsystem with SmartGain&#153 Mono Class-D and DirectPath&#1 Headphone Amplifier AUDIO SUBSYSTEMS-ANALOG-INPUT TI customers also evaluated this product.
TPA2054D4 2.4 W/Ch 3-Input Audio Subsystem with Stereo Class-D and DirectPath&#153 Headphone Amplifier AUDIO SUBSYSTEMS-ANALOG-INPUT TI customers also evaluated this product.
MSP430F148 16-Bit Ultra-Low-Power Microcontroller, 48 kB Flash, 2KB RAM, 12 bit ADC, 2 USARTs, HW multiplier MSP430™16-BIT ULTRA-LOW POWER MCUS-1XX 8MHZ SERIES TI customers also evaluated this product.

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