CXAR41333 is an audio reverberation processor chip that integrates modeling, analog-to-digital conversion, and high sampling rate processing functions. It has a built-in 44Kbit RAM digital delay module and voltage controlled oscillator (VCO), supports external frequency adjustment, has extremely low harmonic distortion (THD<0.5%) and noise level (No<-90dBV), and can output pure and high fidelity audio signals. This chip is packaged in SOP16 or DIP16, with a simple peripheral circuit, low cost, and high performance. It is widely used in karaoke systems, electronic instruments, mixing consoles, microphones, etc DVD、 Various devices such as game consoles.
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[ CXAR41333 ]"
CXAR41333: High performance audio reverberation processing chip, reshaping sound experience
In the field of audio processing, reverberation effect is one of the key technologies to enhance the spatial sense and texture of sound. CXAR41333, as a professional audio reverberation processor chip, has become a core component in various audio devices due to its excellent performance and flexible application design. This article will delve into the features, application scenarios, and technological advantages of CXAR41333, helping engineers and developers better utilize the chip to enhance product sound quality and user experience.
1、 Chip Overview: Professional grade Audio Processing Core
CXAR41333 is an audio reverberation processor chip that integrates modeling, analog-to-digital conversion, and high sampling rate processing functions. It has a built-in 44Kbit RAM digital delay module and voltage controlled oscillator (VCO), supports external frequency adjustment, has extremely low harmonic distortion (THD<0.5%) and noise level (No<-90dBV), and can output pure and high fidelity audio signals. This chip is packaged in SOP16 or DIP16, with a simple peripheral circuit, low cost, and high performance. It is widely used in karaoke systems, electronic instruments, mixing consoles, microphones, etc DVD、 Various devices such as game consoles.
2、 Core Features and Advantages
2.1. Low noise and low distortion
Under typical working conditions, CXAR41333 has an output noise of less than -90dBV and harmonic distortion of less than 0.5%, ensuring high fidelity output of audio signals and suitable for professional scenarios with extremely high sound quality requirements.
2.2. Built in RAM and VCO
The chip is equipped with 44Kbit RAM for digital delay processing, and with an adjustable voltage controlled oscillator, users can flexibly adjust the delay time through an external resistor (10KΩ‐ 50KΩ), achieving a wide range of delay control from 31.3ms to 342ms.
2.3. Automatic reset function
Equipped with a power on automatic reset mechanism, the reset time is about 400ms, improving the stability and reliability of system startup.
2.4. Dual channel operational amplifier and filter
Integrate two operational amplifiers (OP1/OP2) and low-pass filters (LPF1/LPF2), support multi-level signal conditioning and filtering, and adapt to complex audio processing links.
2.5. Wide voltage and temperature range
The recommended working voltage is 4.5V; 5.5V， Supports working temperatures ranging from -25 ℃ to+85 ℃, suitable for various environments and application scenarios.
3、 Internal Structure and Function Description
The internal structure of CXAR41333 includes analog input/output interfaces, low-pass filters, A/D and D/A conversion modules, digital delay RAM, and VCO control unit. The working process of its echo mode is as follows:
· After low-pass filtering, the input signal enters A/D conversion;
· Digital signals undergo delay processing through RAM;
· The processed signal is output after D/A conversion and filtering.
This structure supports multiple sound effects modes such as echo, reverb, and surround sound, and can be adjusted through external components to achieve different audio effects.
4、 Typical Application Circuit
4.1. Mixing reverb circuit
By combining external resistors, capacitors, and operational amplifiers, the reverberation and delay effects of audio signals can be achieved. For example, the VCO pin is externally connected to 10KΩ Resistors can achieve a typical delay of 171ms.
4.2. Surround sound delay circuit
By utilizing the dual filtering and operational amplifier resources of the chip, a surround sound processing system is constructed to enhance the spatial and hierarchical sense of the audio.
In specific circuit design, it is recommended to refer to the typical application diagram provided in the data manual, pay attention to power decoupling, signal matching, and grounding design to optimize system performance.
5、 Detailed explanation of technical parameters
· Electrical CharacteristicsUnder the conditions of VCC=5V and fck=4MHz, the typical current of the chip is 15mA, the voltage gain is about -0.5 to 2.5dB, the maximum output is 2Vrms, and the PSRR is better than -40dB.
· The relationship between delay and distortionAs the external resistance decreases, the clock frequency increases, the delay time shortens, and the THD gradually decreases, users can weigh and choose according to their actual needs.
6、 Precautions for packaging and welding
CXAR41333 offers two packaging forms, SOP16 and DIP16. The structural dimensions are detailed in the data manual. It should be noted that the chip is an electrostatic sensitive device and is susceptible to ESD damage in dry environments. It is recommended to take anti-static measures during welding and operation to avoid component damage or performance degradation.
7、 Conclusion: Empowering Audio Innovation, Choosing JTMIC
CXAR41333 is an ideal choice in the field of audio processing due to its low noise, low distortion, high integration, and flexible adjustability. Whether it is karaoke equipment, electronic instruments, or consumer audio products, this chip can provide stable and high-quality sound processing capabilities.
As JTMIC（jtm-ic.com）One of the recommended core chips, we are committed to providing customers with comprehensive technical support and high-quality original stock. Welcome to visit the official website to learn more about product information and application solutions, and join hands with JTMIC to create a new future of audio technology!
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