The TPA2018D1 is a mono, filter-free Class-D audio power amplifier with volume control, dynamic range compression (DRC) and automatic gain control (AGC). It is available in a 1.63 mm x 1.63 mm WCSP package.

The DRC/AGC function in the TPA2018D1 is programmable via 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 TPA2018D1 is capable of driving 3 W at 5 V into 4 load or 880 mW at 3.6 V into 8 load. The device features hardware and software shutdown controls and also provides thermal and short-circuit protection.

In addition to these features, a fast start-up time and small package size make the TPA2018D1 an ideal choice for cellular handsets, PDAs and other portable applications.

• Filter-Free Class-D Architecture
• 3 W Into 4 at 5 V (10% THD+N)
• 880 mW Into 8 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
• Fast Start-up Time: 5 ms
• AGC Enable/Disable Function
• Limiter Enable/Disable Function
• Short-Circuit and Thermal Protection
• Space-Saving Package
  • 1,63 mm × 1,63 mm Nano-Free WCSP (YZF)
• APPLICATIONS
  • Wireless or Cellular Handsets and PDAs
  • Portable Navigation Devices
  • Portable DVD Player
  • Notebook PCs
  • Portable Radio
  • Portable Games
  • Educational Toys
  • USB Speakers

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

TPA2018D1的完整型号有：TPA2018D1YZFR、TPA2018D1YZFT，以下是这些产品的关键参数及官网采购报价：

TPA2018D1YZFR，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TPA2018D1YZFR的批量USD价格：.746（1000+）

TPA2018D1YZFT，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TPA2018D1YZFT的批量USD价格：.895（1000+）

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