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特性

  • Supports 4Ω and 8Ω loads
  • Input supply range: 4.5V to 9.0V
  • Prms: 9.0W into 4Ω load at 8.2V, 1% THD+N
  • Prms: 10.2W into 4Ω load at 8.2V, 10% THD+N
  • Prms: 3.8W into 8Ω load at 8.2V, 1% THD+N
  • Prms: 5.0W into 8Ω load at 8.2V, 10% THD+N
  • Efficiency: 85% at Pout = 7.0W at 8.2V, 4Ω
  • Efficiency: 90% at Pout = 3.5W at 8.2V, 8Ω
  • Ultra-low standby current: 7µA
  • SNR (A-weighted) 104dB
  • THD+N: 90dB
  • PSRR: 78dB
  • Fixed +18db gain
  • Package: 9-WLCSP 0.5mm

描述

The DA7202 is a powerful, highly efficient, low EMI Class D speaker driver that can drive 8W into 4Ω loads directly from a 2S Lithium-ion battery pack to power a variety of two-cell portable applications such as Ultrabooks and tablets.

It uses a fully differential switched-mode amplifier architecture with a fixed +18dB gain, with differential analog inputs. It also has a PWM modulator and an H-bridged switched power output stage that delivers 5W (dynamic) into an 8Ω load, making a speaker sound louder on portable devices.

Benefits

  • Low component count
  • Small PCB area due to 9 bump WLCSP 0.5mm pitch package
  • Good PSRR and THD+N
  • Differential audio inputs
  • Low EMI
  • Short circuit and thermal overload protection with auto-recovery

产品参数

属性
D2 Audio DSP Customization GUI No

封装选项

Pkg. Type Pkg. Dimensions (mm) Pitch (mm)
9-WLCSP 1.73 x 1.54 0.5

应用方框图

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稳健耐用的 CAN FD 操作触摸屏
可靠的 HMI 触控面板,具有 CAN FD、触觉反馈和 NFC,适用于电动自行车、电梯和工业。
Portable Thermal Printer​ Block Diagram
便携式热敏打印机
带 Wi-Fi、蓝牙和 NFC 连接的智能便携式热敏打印机。
Interactive block diagram of the WXGA single display HMI platform features RGB and MIPI video outputs with 2D graphics, powered by an Arm Cortex-M85 MCU.
高端功能丰富的 HMI 平台
灵活的 HMI 平台,为显示分辨率、音频、扬声器等提供丰富的功能支持。
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输液监测仪可监测液位,在各种液罐应用场景中提供可靠的警报。

其他应用

  • Ultrabooks
  • Tablets
  • Personal navigation devices
  • Speaker accessories
  • Handheld gaming
  • Mobile computing

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