Surface Mount Resistors and Through Hole Resistors are two commonly used resistance devices, which play the roles of current limiting, voltage dividing, protection, etc. in electronic circuits. For audio equipment, the selection of resistance devices is very important to the sound quality. The following are some considerations about chip resistance and color ring resistance and sound quality:
1. Noise:
-SMD resistors: SMD resistors usually have smaller size and weight, which makes them better resistant to mechanical and CY7C263-20WC Thermal stress reduces the generation of internal noise. In addition, the structure design of SMD resistor can also reduce noise. Therefore, SMD resistors can generally provide a lower noise level in audio equipment.
-Color ring resistance: the structure of color ring resistance is relatively large, and there are many internal contacts and welding points, which may lead to some current noise and thermal noise. Therefore, compared with SMD resistance, color ring resistance may produce a higher noise level to some extent.
2. Temperature coefficient:
-SMD resistance: SMD resistance usually has a small temperature coefficient, which means that its resistance value changes little when the temperature changes. This is important for audio devices because they need to maintain stable operating conditions to avoid distortion of sound quality.
-Color ring resistance: the temperature coefficient of color ring resistance is relatively large, which means that its resistance value may change greatly when the temperature changes. This may have a certain impact on the working conditions of audio equipment, which may lead to changes in sound quality.
3. Frequency response:
-SMD resistor: SMD resistor usually has a high frequency response and can provide uniform impedance characteristics in a wider frequency range. This is important for audio devices because they need to transmit broadband audio signals without introducing additional distortion.
-Color ring resistance: the frequency response of color ring resistance is relatively low, which may introduce additional inductance and capacitance effects at higher frequencies, resulting in distortion of audio signals.
It should be noted that in addition to the characteristics of the resistance device itself, the resistance value, accuracy and power capacity of the resistance will also affect the sound quality. In audio equipment, lower resistance values tend to introduce larger current noise, while higher resistance values may cause signal attenuation and distortion. Therefore, selecting the appropriate resistance and accuracy is the key to ensure the sound quality. In addition, power capacity needs to be selected according to the power demand of audio equipment to avoid overheating and damage of resistance.
To sum up, SMD resistor and color ring resistor have different characteristics in terms of sound quality. The chip resistor usually has a lower noise level, a smaller temperature coefficient and a higher frequency response, while the color ring resistor may have a higher noise level, a larger temperature coefficient and a lower frequency response. In audio equipment, according to specific application requirements, these factors need to be considered comprehensively to select appropriate resistance devices to ensure good sound quality performance.
