The **AS07708PS-2-R** is a high-quality, miniature loudspeaker manufactured by **PUI Audio, Inc.** It is specifically designed for applications where space is limited but high-fidelity sound and reliability are required. --- ### 1. Key Technical Specifications The following table highlights the primary electrical and mechanical characteristics of the component: | Feature | Specification | | :--- | :--- | | **Rated Power** | 2.0 Watts | | **Maximum Power** | 3.0 Watts | | **Impedance** | 8 Ohms (±15%) | | **Sensitivity** | 82 dB (at 1W / 0.5m) | | **Frequency Range** | 150 Hz ~ 20,000 Hz | | **Resonant Frequency (Fs)** | 300 Hz (±20%) | | **Magnet Material** | Neodymium (NdFeB) | | **Weight** | ~33 Grams | --- ### 2. Component Materials & Construction The "AS" series from PUI Audio often utilizes premium materials to ensure durability in various environments: * **Neodymium Magnet:** Provides a strong magnetic field in a small footprint, allowing for high efficiency and lower weight compared to traditional Ferrite magnets. * **Cone Material:** Typically features a paper or treated cloth cone for natural sound reproduction. * **Frame/Housing:** Constructed with a rugged metal or high-grade plastic frame to minimize vibrations and distortion. * **Lead Wires:** Usually comes with pre-soldered lead wires or solder pads for easy integration into electronic circuits. --- ### 3. Application Use-Cases Due to its wide frequency response and 2W power rating, this part is commonly found in: 1. **Industrial Equipment:** Audible alarms, status indicators, and voice prompts. 2. **Consumer Electronics:** Smart home hubs, portable Bluetooth speakers, and high-end toys. 3. **Medical Devices:** Monitoring equipment that requires clear, audible alerts. 4. **Kiosks & POS Terminals:** For interactive audio feedback during transactions. --- ### 4. Implementation Code (Audio PWM Example) If you are driving this speaker using a microcontroller (like an Arduino) via a simple low-pass filter and an amplifier, your initialization code might look like this: ```cpp // Example: Generating a 1kHz tone for a status alert const int speakerPin = 9; // PWM enabled pin void setup() { pinMode(speakerPin, OUTPUT); } void loop() { // Generate a tone: tone(pin, frequency, duration) tone(speakerPin, 1000, 500); delay(1000); // Wait 1 second } ``` *Note: It is highly recommended to use a Class-D or AB amplifier circuit rather than driving the speaker directly from a microcontroller GPIO pin to avoid damage.* ---