AK4951EN
Consumer Circuit
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製造商零件號 # : AK4951EN
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包裝/封裝: QFN-32
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產品分類 : CODECS
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AK4951EN 數據表
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詳細說明
Apart from its impressive audio capabilities, the AK4951EN also comes equipped with advanced digital filters and signal processing features, enhancing overall audio quality while minimizing the need for external components. Operating on low power consumption, it proves ideal for energy-efficient, battery-powered devices. Furthermore, its compact design ensures a space-efficient solution for systems with limited layout options. With user-friendly programmable settings and intuitive control interfaces, integrating the AK4951EN into different audio setups becomes a straightforward task, offering flexibility and convenience to developers and designers
主要特徵
- Analog Input (AK4951EN) 3 Stereo Single-ended inputs with Selectors (AK4951EG) 2 Stereo and 1 Monaural Single-ended inputs with SelectorsMicrophone Amplifier: +30dB ~ 0dB, 3dB StepMicrophone Power Supply: 2.0V or 2.4V, Noise Level= -108dBVDigital ALC (Automatic Level Control) - Setting Range: +36dB 52.5dB, 0.375dB Step & MuteADC Performance: S/(N+D): 83dB, DR, S/N: 88dB (MIC-Amp=+18dB)S/(N+D): 85dB, DR, S/N: 96dB (MIC-Amp=0dB)Microphone Sensitivity CorrectionAutomatic Wind Noise Reduction Filter5-Band Notch Filter: Include Dynamic Gain ControlStereo Separation Emphasis CircuitDigital Microphone Interface
規格
以下是所選零件的基本參數,涉及零件的特性及其所屬類別。
ECCN (US) | EAR99 | Part Status ! | Obsolete |
HTS | 8542.39.00.01 | Automotive | No |
PPAP | No | Type | General Purpose |
ADC/DAC Resolution (bit) | 24 | Interface Type | Serial (3-Wire, I2S) |
Minimum Operating Supply Voltage (V) | 1.6|2.8 | Typical Operating Supply Voltage (V) | 3.3|1.8 |
Maximum Operating Supply Voltage (V) | 1.98|3.5 | Power Supply Type ! | Analog|Digital |
Maximum Power Dissipation (mW) | 840 | Minimum Operating Temperature (°C) | -40 |
Maximum Operating Temperature (°C) | 85 | Mounting | Surface Mount |
Package Height | 0.75(Max) | Package Width | 4 |
Package Length | 4 | PCB changed | 32 |
Standard Package Name | QFN | Supplier Package | QFN EP |
Pin Count ! | 32 | Lead Shape | No Lead |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等,這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is AK4951EN?
The AK4951EN is a high-performance stereo digital-to-analog converter (DAC) designed by AKM Semiconductor. It is specifically designed for audio applications where high-quality audio reproduction is critical, such as portable media players, smartphones, and audio interfaces.
How Does AK4951EN Work?
The AK4951EN functions as a DAC by converting digital audio signals into analog signals with high fidelity and low distortion. It utilizes advanced digital signal processing techniques to enhance audio quality, providing a superior listening experience. The DAC is designed to work seamlessly with various audio codecs and interfaces commonly found in audio systems.
How Many Pins does AK4951EN have and What are the Functions of the Pinout Configuration?
The AK4951EN is housed in a small footprint 24-pin QFN (Quad Flat No-leads) package. The pinout configuration includes:
- AVDD, DVDD: Analog and digital power supply pins, respectively.
- AGND, DGND: Analog and digital ground pins, respectively.
- LRCK, BICK, SDTI, SDTO: Audio interface pins for clock and data signals.
- VREFOUT, VREFIN: Reference voltage pins for internal and external reference voltages.
- APLL: Audio PLL clock input pin.
- LOUT, ROUT: Left and right analog audio output pins.
What are the Pros and Cons of AK4951EN?
Pros:
- High Audio Quality: Provides high-fidelity audio reproduction with low distortion.
- Low Power Consumption: Operates efficiently in portable devices for extended battery life.
- Flexible Interface: Supports various audio interfaces for seamless integration into audio systems.
- Compact Package: The small QFN package allows for space-saving designs.
- Integrated Features: Includes built-in functions such as a headphone amplifier for added convenience.
Cons:
- Cost: Higher performance audio DACs like the AK4951EN may come at a higher cost.
- Complexity: Requires knowledge of audio signal processing for optimal usage.
- External Components: Additional external components may be needed for specific system requirements.
Are There Any Equivalents/Alternatives to AK4951EN for Recommendation?
- The AKM AK4490EQ is a higher-end audio DAC with enhanced performance characteristics.
- Alternatives to the AK4951EN include the Cirrus Logic CS4344 and the TI PCM5102A for different audio applications.
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