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 | 值 |
|---|---|
| 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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家用电器人机界面（HMI）
面向智能家电的自定义 HMI 系统，支持显示屏、触控、语音及 NFC 等多种交互方式。
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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。
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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。
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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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电容式触控输液液位监测仪
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。
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其他应用
- Ultrabooks
- Tablets
- Personal navigation devices
- Speaker accessories
- Handheld gaming
- Mobile computing