## Technical Overview: ASEMDLP-L-R-T5 The **ASEMDLP-L-R-T5** is a high-performance, low-power **LVDS (Low Voltage Differential Signaling) Output MEMS Oscillator**. It is manufactured by Abracon and belongs to the ASEMD series, which is designed to replace traditional quartz crystal oscillators in environments where space and power consumption are critical. --- ### 1. Part Number Breakdown Understanding the specific features of this component requires decoding its part number: | Code | Component | Description | | :--- | :--- | :--- | | **ASEMD** | Series | Low power, high performance MEMS oscillator | | **LP** | Power Grade | Low Power version | | **L** | Output Type | **LVDS** (Low Voltage Differential Signaling) | | **R** | Frequency Stability | ±25 ppm (typical for this series) | | **T5** | Packaging | Tape & Reel (5,000 units per reel) | --- ### 2. Core Electronic Specifications This oscillator is characterized by its use of Micro-Electro-Mechanical Systems (MEMS) technology instead of a quartz crystal. * **Output Type:** LVDS (Differential). This provides high noise immunity and low EMI, suitable for high-speed data transmission. * **Operating Voltage (Vdd):** Typically operates within **2.25V to 3.6V**. * **Package Size:** 3.2 x 2.5 x 0.85 mm (SMD). * **Operating Temperature:** Generally supports Industrial grade (-40°C to +85°C). * **Frequency Range:** Configurable between 10 MHz to 150 MHz. --- ### 3. Key Electronic Advantages The internal circuitry of the ASEMDLP-L-R-T5 offers several benefits over traditional oscillators: 1. **High Reliability:** Because MEMS are solid-state and do not use physical vibrating crystals, they are significantly more resistant to mechanical shock and vibration (up to 50,000g). 2. **Low Jitter:** The LVDS output ensures low period jitter, which is essential for clocking FPGAs, Ethernet controllers, and high-speed SERDES. 3. **Startup Performance:** Features a rapid startup time, usually under 5ms. 4. **Standby Functionality:** Includes a Power Down or Output Enable pin to reduce power consumption when the device is not in active use. --- ### 4. Typical Application Circuit When integrating this part, designers must account for the LVDS termination. ```c // Example: LVDS Termination Scheme [Oscillator Output +] ----| 50 Ohm |---- [Receiver Input +] | (100 Ohm Resistor) | [Oscillator Output -] ----| 50 Ohm |---- [Receiver Input -] ``` *Note: A 0.1µF bypass capacitor should be placed as close as possible to the Vdd pin.*