The **AS04032PR-R** is a high-performance miniature speaker manufactured by **PUI Audio**. It is designed for compact electronic applications that require clear audio output within a small footprint. --- ### 1. Technical Specifications The following table highlights the core electrical and physical characteristics of the AS04032PR-R: | Parameter | Specification | | :--- | :--- | | **Impedance** | 8 Ohms ± 15% | | **Rated Power** | 2 Watts | | **Max Power** | 3 Watts | | **Resonant Frequency (Fs)** | 500 Hz ± 20% | | **Frequency Range** | 500 Hz ~ 20,000 Hz | | **Sound Pressure Level (SPL)** | 84 dB ± 3dB @ 1W/0.5m | | **Magnet Material** | Neodymium (NdFeB) | | **Weight** | ~6.6 grams | --- ### 2. Key Features and Materials * **Neodymium Magnet:** Uses high-strength Neodymium to provide high sensitivity and power handling despite its small size. * **Paper Cone & Cloth Surround:** This combination provides a natural sound profile and durability for mid-to-high frequency reproduction. * **Compact Square Frame:** The 40mm x 40mm square design allows for easy mounting in enclosures and handheld devices. * **RoHS Compliant:** The part meets environmental standards for hazardous substances. --- ### 3. Physical Dimensions The device is characterized by its slim profile, making it ideal for space-constrained designs: * **Width/Height:** 40mm x 40mm * **Depth:** 11.5mm * **Mounting Type:** Flush mount / Screw holes --- ### 4. Typical Applications The AS04032PR-R is commonly found in the following electronic systems: 1. **Industrial Controls:** Audio feedback for kiosks or control panels. 2. **Medical Devices:** Alarms and voice prompts for monitoring equipment. 3. **Consumer Electronics:** Smart home speakers, intercoms, and portable radios. 4. **Security Systems:** Warning sirens and voice communication modules. --- ### 5. Implementation Example When integrating this speaker into a circuit, it is typically driven by a Class-D or Class-AB audio amplifier. Below is a conceptual connection: ```c // Pseudo-code representation of PWM Audio Drive void play_tone(int frequency, int duration) { // Configure Timer for Frequency (e.g., 1kHz) // Connect PWM Output to Audio Amplifier Input // Amplifier Output connected to AS04032PR-R (8 Ohm load) start_pwm(frequency); delay(duration); stop_pwm(); } ```