TPA6139A2

AKTIV

25-mW-Stereo-Kopfhörerverstärker mit Analog-Eingang und programmierbarer Verstärkung

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Datenblatt

document-pdfAcrobat TPA6139A2 DirectPath™ 25-mW Headphone Amplifier With Programmable-Fixed Gain datasheet (Rev. C) (Englisch) PDF | HTML

TPA6139A2

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

Rating

Catalog

Operating temperature range (°C)

-40 to 150

Rating

Catalog

Operating temperature range (°C)

-40 to 150

VQFN (RGT)

16

9 mm² (3 mm × 3 mm)

TSSOP (PW)

14

32 mm² (5 mm × 6.4 mm)

DirectPath™
- Eliminates Pops and Clicks
- Eliminates Output DC-Blocking Capacitors
- 3-V to 3.6-V Supply Voltage
Low Noise and THD
- SNR > 105 dB at –1x Gain
- Typical Vn < 15 µVms 20 to 20 kHz at –1x
  Gain
- THD+N < 0.003% at 10-kΩ Load and –1x Gain
25 mW into 32-Ω Load
2-Vrms Output Voltage into 600-Ω Load
Single-Ended Input and Output
Programmable Gain Select Reduces Component
Count
- 13x Gain Values
Active Mute With More Than 80-dB Attenuation
Short-Circuit and Thermal Protection
±8-kV HBM ESD Protected Outputs

DirectPath™
- Eliminates Pops and Clicks
- Eliminates Output DC-Blocking Capacitors
- 3-V to 3.6-V Supply Voltage
Low Noise and THD
- SNR > 105 dB at –1x Gain
- Typical Vn < 15 µVms 20 to 20 kHz at –1x
  Gain
- THD+N < 0.003% at 10-kΩ Load and –1x Gain
25 mW into 32-Ω Load
2-Vrms Output Voltage into 600-Ω Load
Single-Ended Input and Output
Programmable Gain Select Reduces Component
Count
- 13x Gain Values
Active Mute With More Than 80-dB Attenuation
Short-Circuit and Thermal Protection
±8-kV HBM ESD Protected Outputs

The TPA6139A2 is a 25-mW, pop-free stereo headphone driver designed to reduce component count, board space and cost. It is ideal for single-supply electronics where size and cost are critical design parameters.

The TPA6139A2 device does not require a power supply greater than 3.3 V to generate its 25 mW, nor does it require a split rail power supply.

The TPA6139A2 device was designed using TI’s patented DirectPath™ technology, which integrates a charge pump to generate a negative supply rail that provides a clean, pop-free ground biased output. The TPA6139A2 is capable of driving 25 mW into a 32-Ω load and 2 Vrms into a 600-Ω load. DirectPath also allows the removal of the costly output DC-blocking capacitors.

The device has fixed gain single-ended inputs with a gain select pin. Using a single resistor on this pin, the designer can choose from 13 internal programmable gain settings to match the line driver with the CODEC output level. It also reduces the component count and board space.

Headphone outputs have &plusm;8-kV HBM ESD protection enabling a simple ESD protection circuit. The TPA6139A2 has built-in active mute control with more that 80-dB attenuation for pop-free mute ON and OFF control.

The TPA6139A2 device is available in a 14-pin TSSOP and a 16-pin QFN. For a pin-compatible, 2-Vrms line driver see DRV612.

The TPA6139A2 is a 25-mW, pop-free stereo headphone driver designed to reduce component count, board space and cost. It is ideal for single-supply electronics where size and cost are critical design parameters.

The TPA6139A2 device does not require a power supply greater than 3.3 V to generate its 25 mW, nor does it require a split rail power supply.

The TPA6139A2 device was designed using TI’s patented DirectPath™ technology, which integrates a charge pump to generate a negative supply rail that provides a clean, pop-free ground biased output. The TPA6139A2 is capable of driving 25 mW into a 32-Ω load and 2 Vrms into a 600-Ω load. DirectPath also allows the removal of the costly output DC-blocking capacitors.

The device has fixed gain single-ended inputs with a gain select pin. Using a single resistor on this pin, the designer can choose from 13 internal programmable gain settings to match the line driver with the CODEC output level. It also reduces the component count and board space.

Headphone outputs have &plusm;8-kV HBM ESD protection enabling a simple ESD protection circuit. The TPA6139A2 has built-in active mute control with more that 80-dB attenuation for pop-free mute ON and OFF control.

The TPA6139A2 device is available in a 14-pin TSSOP and a 16-pin QFN. For a pin-compatible, 2-Vrms line driver see DRV612.

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Top-Dokumentation	Typ	Titel	Format-Optionen	Datum
*	Datenblatt	TPA6139A2 DirectPath™ 25-mW Headphone Amplifier With Programmable-Fixed Gain datasheet (Rev. C)	PDF \| HTML	27.04.2016
	Anwendungshinweis	Guidelines for Measuring Audio Power Amplifier Performance (Rev. A)		26.08.2019
	Anwendungshinweis	AN-1849 An Audio Amplifier Power Supply Design (Rev. C)		27.06.2019

TPA6139A2EVM — TPA6139A2EVM-Evaluierungsmodul

The TPA6139A2EVM customer evaluation module (EVM) demonstrates the capabilities and operation of the TPA6139A2PW integrated circuit from Texas Instruments. The TPA6139A2PW is a 25mW Pop-Free stereo Head Phone driver designed to reduce component count, board space and cost. It is ideal for single (...)

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