The **MA16FAD-R** is a high-performance, ultra-compact GPS/GNSS receiver module, typically utilized in mobile devices, wearable technology, and Internet of Things (IoT) applications where space and power efficiency are critical. Below is a detailed breakdown of its electronic specifications and technical features. --- ### 1. General Specifications The module is designed for rapid positioning and high sensitivity, supporting multiple satellite constellations. | Feature | Specification | | :--- | :--- | | **Constellations Supported** | GPS, GLONASS, Galileo, QZSS | | **Interface** | UART (Universal Asynchronous Receiver-Transmitter) | | **Operating Voltage** | 2.8V to 4.3V (Typical 3.3V) | | **Channels** | 99 Search channels / 33 Tracking channels | | **Package Type** | LCC (Leadless Chip Carrier) | | **Dimensions** | Approx. 16.0 x 12.2 x 2.4 mm | --- ### 2. Performance Metrics The MA16FAD-R is optimized for "Time to First Fix" (TTFF) and maintaining a lock in urban canyon environments. * **Sensitivity:** * Tracking: -165 dBm * Re-acquisition: -160 dBm * Cold Start: -148 dBm * **TTFF (Time to First Fix):** * Cold Start: < 15 seconds * Warm Start: < 5 seconds * Hot Start: < 1 second * **Accuracy:** * Horizontal Position: < 2.5m CEP * Velocity: < 0.1m/s --- ### 3. Key Internal Electronic Components The architecture of the MA16FAD-R integrates several critical sub-systems into a single module: 1. **MediaTek Chipset:** Usually powered by a MediaTek MTK3333 or similar high-integration SoC (System on Chip). 2. **LNA (Low Noise Amplifier):** Built-in to boost weak signals from satellites before processing. 3. **SAW Filter:** Acts as a band-pass filter to reject out-of-band interference (e.g., from cellular signals). 4. **TCXO (Temperature Compensated Crystal Oscillator):** Ensures frequency stability across wide temperature ranges (-40°C to +85°C). 5. **RTC (Real Time Clock):** Maintains time data during power-off states to enable faster "Hot Starts." --- ### 4. Pin Configuration (Common UART Setup) While the module has multiple pins, the primary communication is handled via the following pins: ```text Pin 1: VCC (Power Supply) Pin 2: GND (Ground) Pin 3: TXD (Data output to Microcontroller) Pin 4: RXD (Data input from Microcontroller) Pin 5: PPS (Pulse Per Second - Timing Signal) Pin 6: RESET (Hardware Reset) ``` --- ### 5. Application Areas * **Asset Tracking:** Shipping containers and vehicle fleets. * **Wearables:** Smartwatches and fitness trackers. * **Drones:** Flight stabilization and Return-to-Home (RTH) functions. * **Industrial IoT:** Smart agriculture and remote sensor stations.