TPA2037D1 固定增益3.2W单声道D类，具有集成 DAC噪声滤波器
The TPA2037D1 is a 3.2 W high efficiency filter-free class-D audio power amplifier (class-D amp) with 6 dB of fixed gain in a 1.21 mm x 1.16 mm wafer chip scale package (WCSP). The device requires only one external component.
Features like 95% efficiency, 1.5 mA quiescent current, 0.1 µA shutdown current, 81-dB PSRR, 20 µV output noise, and improved RF immunity make the TPA2037D1 class-D amplifier ideal for cellular handsets. A start-up time of 4 ms with no audible pop makes the TPA2037D1 ideal for PDA and smart-phone applications.
特性
- Powerful Mono Class-D Speaker Amplifier
- 3.24 W (4 , 5 V, 10% THDN)
- 2.57 W (4 , 5 V, 1% THDN)
- 1.80 W (8 , 5 V, 10% THDN)
- 1.46 W (8 , 5 V, 1% THDN)
- +6 dB Fixed Gain
- Integrated Image Reject Filter for DAC Noise Reduction
- Low Output Noise of 20 µV
- Low Quiescent Current of 1.5 mA
- Differential Input Impedance of 300 k
- Auto-Recovering Short-Circuit Protection
- Thermal-Overload Protection
- Filter-Free Mono Class-D Amp
- 9-Ball 1,21 mm × 1,16 mm 0,4mm Pitch WCSP
- APPLICATIONS
- Wireless or Cellular Handsets and PDAs
- Portable Navigation Devices
- General Portable Audio Devices
APPLICATION CIRCUIT
