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TPA2050D4

Features: ` Stereo Class-D Amp: 1.4 W into 8 from 5.0 V (10% THD + 1.25 W into 8 from 5.0 V (1% THD +` DirectPath™ Stereo Headphone Amplifier No Output Capacitors Required` Gain Select for Headphone Amplifier` Eight Programmable Maximum Headphone Voltage Limits` Two Single-Ended or One Dif...

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SeekIC No. : 004526029 Detail

TPA2050D4: Features: ` Stereo Class-D Amp: 1.4 W into 8 from 5.0 V (10% THD + 1.25 W into 8 from 5.0 V (1% THD +` DirectPath™ Stereo Headphone Amplifier No Output Capacitors Required` Gain Select for H...

TPA2050D4 Data Sheet

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Part Number:
TPA2050D4
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

` Stereo Class-D Amp:
1.4 W into 8 from 5.0 V (10% THD +
1.25 W into 8 from 5.0 V (1% THD +
` 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 DCShort-Circuit and Thermal-Overload Protection
` ±8 kV HBM ESD Protection on Headphone Outputs
` I2C™ Interface
` 25-Ball 2,61 mm * 2,61 mm WCSP


Application

· Smart Phones / Cellular Phones
· Laptop Computers
· Portable Gaming
· Portable Media Players


Specifications

  VALUE UNIT
Supply voltage, VDDHP, PVDD, AVDD 0.3 to 6.0 V
  DVDD 0.3 to 3.6 V
VI Input voltage INL_1, INL_2, INR_1, INR_2 0.3 to VDD + 0.3 V
  SDA, SCL, RESET -0.3 to DVDD + 0.3 V
Output continuous total power dissipation See Dissipation Rating
Table		  
TA Operating free-air temperature range 40 to 85
TJ Operating junction temperature range 40 to 150
Tstg Storage temperature range 65 to 150
Lead temperature 1,6 mm (1/16 inch) from case for 10 seconds 260
ESD Electrostatic discharge,
HBM		 OUTL+, OUTL, OUTR+, OUTR 2 k V
HPLEFT and HPRIGHT 8 k V

(1) Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicate d under  ecommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended eriods may affect device reliability.




Description

The TPA2050D4 features a stereo Class-D power amplifier along with a stereo DirectPath™ headphone saimngplleif-ieern.dedTh(SeE) TinPpAu2ts05t0hDat4canhabse cotwnofigursetdereaos one stereo differential input. Both input channels have a 32-step volume control and the DirectPath choeaardspehovonleumaempaldifjiuesrtmheanst.aAl4l -alemvpellifigearsinhacoventrooultpfourt short-circuit and thermal- overload protection.

The TPA2050D4  Class-D amplifiers deliver 1.25 W into 8 at 1% THD from a 5.0 V supply, and 700 mW from 3.6 V.

The TPA2050D4 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 TPA2050D4 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 2mA.The TPA2050D4YZK is available in a 25-ball 2.61 mm * 2.61 mm WCSP package.




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