A Quick Guide to Selecting ChipSourceTek-CST Audio Power Amplifiers

    The following table summarizes the core parameters of the 10 CST series audio power amplifier chips you provided, facilitating your quick comparison.

Note: ○ indicates not having it, and ● indicates having it. The detailed parameters of some models (such as anti-distortion and one-line pulse) are not explicitly mentioned in the search results. The information in the above table shall prevail.

🔍 Key features and selection points

Overall, you can narrow down the selection range based on the following points:

1. Power and voltage requirements

   • Low-power portable devices (1W - 5W) : If you need an AB class power amplifier for low-voltage, portable devices, the CST8002A is a classic choice -8. For portable wearable devices that require ultra-small packaging, the CST8107 is worth considering.

   • Medium power applications (5W - 10W) : The CST8102A, CST8302A, CST8302S and CST8250 cover this power range. Among them, CST8250 is the only dual-channel chip, suitable for stereo applications.

   • High-power applications (above 15W) : For devices that require high-power output, such as trolley speakers and high-power Bluetooth speakers, the CST8110-6-9 and CST8337 are ideal choices.

2. Work efficiency and distractions

   • Class AB and Class D: Class AB amplifiers (such as the CST8002 series) usually have richer sound quality and cause less interference to FM radios and the like -8. Class D and AB/D switchable power amplifiers (such as CST8110 and CST8302A) have higher efficiency (for example, the efficiency of CST8110 is as high as 91-9%), are more power-efficient, generate less heat, and are suitable for devices with high requirements for battery life.

3. Integration degree and special functions

   • Built-in boost: The CST8336 and CST8337 are equipped with built-in boost circuits, which can maintain stable output power when the battery voltage drops.

   • Anti-distortion and one-line pulse: According to your needs, both CST8302A and CST8336 support anti-distortion and one-line pulse functions, which can effectively enhance the listening experience and simplify control.

4. Circuit design and packaging

   • Differential inputs (such as CST8110-9, CST8302A) can better suppress common-mode noise and enhance the purity of sound quality.

   • Pay attention to packaging and heat dissipation. For instance, the CST8110 adopts an ESOP8-9 package with a heat sink, which is suitable for applications with higher power consumption.

💎 Summary and Suggestions

In simple terms:

  ●     For those pursuing high power and high efficiency, CST8110-6-9 is a key focus for applications such as card-inserting speakers and pull-out speakers.

  ●     The CST8002A-8 and its upgraded model CST8002D are classic models used in low-voltage and low-power scenarios such as smart door locks, security monitoring, and portable toys.

  ●      For stereo output, the CST8250 is an option.

  ●      If you have requirements for anti-distortion and first-line pulse, you can pay attention to CST8302A and CST8336.

  ●      For portable wearable products with extreme requirements for packaging size, CST8107-3 can be considered.

⚠️ Important Note: The above information is based on the selection table provided by the user and limited public materials. The detailed official descriptions of the chip's features such as "anti-distortion" and "one-line pulse" have not been found in the current search results. Before making the final selection and circuit design, it is strongly recommended that you obtain the latest and most complete data sheet and application guide through official channels (such as the official website -2 or email Sales@ChipSourceTek.com-2).

I hope this guide can be of help to you! If you could share more about your specific application scenarios (such as power supply methods, target power, sound quality requirements and cost budget), I can provide you with more precise recommendations.