TPA2028D1

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3-W, mono, analog input Class-D audio amp with fast auto. gain control & dynamic range compression

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Data sheet

document-pdfAcrobat TPA2028D1 3-W Mono Class-D Audio Amplifier With Fast Gain Ramp SmartGain™ AGC/DRC datasheet (Rev. C) PDF | HTML

TPA2028D1

ACTIVE

Data sheet

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Product details

Audio input type

Analog Input

Architecture

Class-D

Speaker channels (max)

Mono

Control interface

I2C

Output power (W)

3

Power stage supply (max) (V)

5.5

Power stage supply (min) (V)

2.7

THD + N at 1 kHz (%)

0.1

Load (min) (Ω)

4

Analog supply voltage (min) (V)

2.5

Analog supply voltage (max) (V)

5.5

Rating

Catalog

Operating temperature range (°C)

-40 to 85

Audio input type

Analog Input

Architecture

Class-D

Speaker channels (max)

Mono

Control interface

I2C

Output power (W)

3

Power stage supply (max) (V)

5.5

Power stage supply (min) (V)

2.7

THD + N at 1 kHz (%)

0.1

Load (min) (Ω)

4

Analog supply voltage (min) (V)

2.5

Analog supply voltage (max) (V)

5.5

Rating

Catalog

Operating temperature range (°C)

-40 to 85

DSBGA (YZF)

9

3.0625 mm² (— mm × — mm)

Fast AGC Start-up Time: 5 ms
Pinout Compatible with TPA2018D1
Filter-Free Class-D Architecture
3 W Into 4 Ω at 5 V (10% THD+N)
880 mW Into 8 Ω at 3.6 V (10% THD+N)
Power Supply Range: 2.5 V to 5.5 V
Flexible Operation With/Without I²C™
Programmable DRC/AGC Parameters
Digital I²C™ Volume Control
Selectable Gain from –28 dB to 30 dB in 1-dB
Steps (when compression is used)
Selectable Attack, Release and Hold Times
4 Selectable Compression Ratios
Low Supply Current: 1.8 mA
Low Shutdown Current: 0.2 µA
High PSRR: 80 dB
AGC Enable/Disable Function
Limiter Enable/Disable Function
Short-Circuit and Thermal Protection
Space-Saving Package
- 1.63 mm × 1.63 mm Nano-Free™ DSBGA
  (YZF)
APPLICATIONS
- Wireless or Cellular Handsets and PDAs
- Portable Navigation Devices
- Portable DVD Player
- Notebook PCs
- Portable Radio
- Portable Games
- Educational Toys
- USB Speakers

All other trademarks are the property of their respective owners

Fast AGC Start-up Time: 5 ms
Pinout Compatible with TPA2018D1
Filter-Free Class-D Architecture
3 W Into 4 Ω at 5 V (10% THD+N)
880 mW Into 8 Ω at 3.6 V (10% THD+N)
Power Supply Range: 2.5 V to 5.5 V
Flexible Operation With/Without I²C™
Programmable DRC/AGC Parameters
Digital I²C™ Volume Control
Selectable Gain from –28 dB to 30 dB in 1-dB
Steps (when compression is used)
Selectable Attack, Release and Hold Times
4 Selectable Compression Ratios
Low Supply Current: 1.8 mA
Low Shutdown Current: 0.2 µA
High PSRR: 80 dB
AGC Enable/Disable Function
Limiter Enable/Disable Function
Short-Circuit and Thermal Protection
Space-Saving Package
- 1.63 mm × 1.63 mm Nano-Free™ DSBGA
  (YZF)
APPLICATIONS
- Wireless or Cellular Handsets and PDAs
- Portable Navigation Devices
- Portable DVD Player
- Notebook PCs
- Portable Radio
- Portable Games
- Educational Toys
- USB Speakers

All other trademarks are the property of their respective owners

The TPA2028D1 device is a mono, filter-free Class-D audio power amplifier with volume control, fast gain ramp SmartGain, dynamic range compression (DRC), and automatic gain control (AGC). It is available in a 1.63 mm × 1.63 mm wafer chip-scale package (DSBGA).

The DRC/AGC function in the TPA2028D1 device is programmable through a digital I²C interface. The DRC/AGC function can be configured to automatically prevent distortion of the audio signal and enhance quiet passages that are normally not heard. The DRC/AGC can also be configured to protect the speaker from damage at high power levels and compress the dynamic range of music to fit within the dynamic range of the speaker. The gain can be selected from –28 dB to +30 dB in 1-dB steps. The TPA2028D1 is capable of driving 3 W at 5 V into a 4-Ω load or 880 mW at 3.6 V into an 8-Ω load. The device features hardware and software shutdown controls and also provides thermal and short-circuit protection. The TPA2028D1 has a faster AGC gain ramp during start-up than TPA2018D1.

In addition to these features, a fast start-up time and small package size make the TPA2028D1 an ideal choice for cellular handsets, PDAs and other portable applications.

The TPA2028D1 device is a mono, filter-free Class-D audio power amplifier with volume control, fast gain ramp SmartGain, dynamic range compression (DRC), and automatic gain control (AGC). It is available in a 1.63 mm × 1.63 mm wafer chip-scale package (DSBGA).

The DRC/AGC function in the TPA2028D1 device is programmable through a digital I²C interface. The DRC/AGC function can be configured to automatically prevent distortion of the audio signal and enhance quiet passages that are normally not heard. The DRC/AGC can also be configured to protect the speaker from damage at high power levels and compress the dynamic range of music to fit within the dynamic range of the speaker. The gain can be selected from –28 dB to +30 dB in 1-dB steps. The TPA2028D1 is capable of driving 3 W at 5 V into a 4-Ω load or 880 mW at 3.6 V into an 8-Ω load. The device features hardware and software shutdown controls and also provides thermal and short-circuit protection. The TPA2028D1 has a faster AGC gain ramp during start-up than TPA2018D1.

In addition to these features, a fast start-up time and small package size make the TPA2028D1 an ideal choice for cellular handsets, PDAs and other portable applications.

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Technical documentation

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Top documentation	Type	Title	Format options	Date
*	Data sheet	TPA2028D1 3-W Mono Class-D Audio Amplifier With Fast Gain Ramp SmartGain™ AGC/DRC datasheet (Rev. C)	PDF \| HTML	Oct 31, 2015
	Application note	Guidelines for Measuring Audio Power Amplifier Performance (Rev. A)		Aug 26, 2019
	Application note	AN-1849 An Audio Amplifier Power Supply Design (Rev. C)		Jun 27, 2019
	Application note	AN-1737 Managing EMI in Class D Audio Applications (Rev. A)		May 1, 2013
	User guide	TPA2028D1 User's Guide		Feb 10, 2010