AU6825AQFN32
-
2×32W Digital Class D Audio Power Amplifier with Integrated DSP
Product details
-
Parameters
-
Characteristics
-
Package
-
Description
-
-
Input Type: Digital IIS Input
-
Architecture: Closed-loop Class D
-
Number of Channels: Stereo 2 Channels
-
Operating Voltage Range: 4.5V to 21V
-
Output Power: 2×25W
-
THD + N
0.03%
-
Control Interface: I²C
-
Sampling Rate
32-192kHz
-
Operating Temperature (°C): -40 to 85
-
-
-
Output Configuration
-
Stereo 2.0: 2×25W (8Ω, 21V, THD + N = 1%)
-
Stereo 2.0: 2×32W (6Ω, 24V, THD + N = 1%)
-
Operating Voltage Range
-
- PVDD: 4.5V – 26.4V
-
- DVDD: 1.8V or 3.3V
-
Quiescent Power Consumption
-
- 31.5mA at PVDD=12V，BD
-
- 18.5mA at PVDD=12V，1SPW
-
Audio Performance Specifications
-
- Noise: ≤38uVrms
-
- THD+N ≤ 0.03% at 1W, 1kHz
-
- SNR ≥ 107dB (A-weighted)
-
- DC offset ≤ ±5mV
-
• Audio Input Signal Formats
-
3-wire I2S, LJ (Left-Justified), RJ (Right-Justified), TDM (Time-Division Multiplexing) (No MCLK required)
-
Supports sampling rates of 32/44.1/48/88.2/96/176.4/192kHz for Fs
-
Supports independent echo cancellation channel Sdout
-
Audio DSP Algorithms
-
- 2×15 EQs +3-band DRC+AGL+3*post Eqs
-
Supports dynamic bass enhancement algorithm
-
Control Mode
-
Supports I2C software configuration mode
-
Supports hardware IO control mode without I2C register control
-
Protection Functions
-
Overcurrent / Overvoltage (23V) / Overtemperature / Undervoltage / DC Protection
-
Overcurrent Protection Threshold: 5.5A
-
Real-time monitoring of supply voltage and chip temperature with readable outputs
-
Supports system-level thermal management protection
-
Audio Tuning and System Integration
-
One-stop GUI tuning software ASATP, a driver-level comprehensive solution
-
Supports one-click configuration file generation via the host computer
-
-
-
QFN
5mm×5mm
-
-
AU6825是一款数字输入型，双通道立体声，高效的音频Class D功率放大器，其最大输出功率可达2×32W或者1×60W，工作电压范围4.5V-26.4V。 AU6825采用创新的调制模式，可以有效降低静态功耗，提升续航时间。AU6825内部集成有32位的高精度音频DSP，可提供包括2×15个均衡器，3段DRC以及AGL等调音算法。此外，为了进一步增强小音量下的低音表现，AU6825还支持动态低音增强算法DPEQ。AU6825内部DSP处理带宽最大支持96kHz(192kHz采样率)。 在音质表现方面，AU6825的THD+N指标可以达到0.03%以下的水平，此外极低的直流偏置电压使得AU6825在开机关机pop音方面具备极其出色的性能。 作为一款中大功率音频功率放大器，AU6825在热管理方面支持四档过温报警和过温度关断保护，此外该芯片温度可以通过寄存器连续输出，方便系统做整体热管理。在喇叭保护方面，AU6825还支持过流/过压/欠压/直流保护等。 AU6825支持QFN32封装，无需散热片，其额定温度范围为 –40°C 至 +85°C。
The AU6825 is a digital-input, dual-channel stereo, high-efficiency Class D audio power amplifier with a maximum output power of up to 2×32W in stereo mode or 1×60W in mono mode. It operates within a voltage range of 4.5V to 26.4V. The AU6825 employs an innovative modulation mode that effectively reduces quiescent power consumption, thereby extending playback time.Integrated within the AU6825 is a 32-bit high-precision audio DSP, which provides extensive audio tuning algorithms, including 2×15 equalizers, 3-band dynamic range compression (DRC), and Automatic Gain Leveler (AGL). Additionally, to enhance bass performance at low volumes, the AU6825 supports Dynamic Parametric EQ (DPEQ) for dynamic bass enhancement. The internal DSP of the AU6825 supports a processing bandwidth of up to 96kHz (with a 192kHz sampling rate).In terms of audio performance, the AU6825 achieves a Total Harmonic Distortion plus Noise (THD+N) level below 0.03%, and its extremely low DC offset voltage ensures excellent performance in minimizing pop noise during power-on and power-off.As a mid-to-high-power audio amplifier, the AU6825 offers four levels of over-temperature alarm and over-temperature shutdown protection for thermal management. The chip temperature can be continuously monitored via register output, facilitating overall system thermal management. For speaker protection, the AU6825 supports overcurrent, overvoltage, undervoltage, and DC protection.The AU6825 is available in a QFN32 package without the need for a heatsink, and its operating temperature range is from -40°C to +85°C.
