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.

• 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: 0.2μA
• 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

• Audio input type
• Analog Input
• Architecture
• Class-D
• Speaker channels (Max)
• Mono
• Power stage supply (Max) (V)
• 5.5
• Power stage supply (Min) (V)
• 2.7
• Load (Min) (ohms)
• 4
• Output power (W)
• 3
• SNR (dB)
• 95
• THD + N @ 1 kHz (%)
• 0.1
• Iq (Typ) (mA)
• 2
• Control interface
• I2C
• Closed/open loop
• Open
• Analog supply (Min) (V)
• 2.5
• Analog supply (Max) (V)
• 5.5
• PSRR (dB)
• 80
• Operating temperature range (C)
• -40 to 85

TPA2028D1的完整型号有：TPA2028D1YZFR、TPA2028D1YZFT，以下是这些产品的关键参数及官网采购报价：

TPA2028D1YZFR，工作温度：-40 to 85，封装：DSBGA (YZF)-9，包装数量MPQ：3000个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SNAGCU，TI官网TPA2028D1YZFR的批量USD价格：.585（1000+）

TPA2028D1YZFT，工作温度：-40 to 85，封装：DSBGA (YZF)-9，包装数量MPQ：250个，MSL 等级/回流焊峰值温度：Level-1-260C-UNLIM，引脚镀层/焊球材料：SNAGCU，TI官网TPA2028D1YZFT的批量USD价格：.702（1000+）

TPA2028D1 PSpice Transient Model (Rev. A)

PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用，包括业内超大的模型库之一，涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

借助?PSpice for TI 的设计和仿真环境及其内置的模型库，您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案，然后再进行布局和制造，可缩短产品上市时间并降低开发成本。

在?PSpice for TI 设计和仿真工具中，您可以搜索 TI (...)