The **ADE-R5LH+** is a high-performance, surface-mount frequency mixer manufactured by Mini-Circuits. It is designed for frequency up-conversion and down-conversion in various RF systems. ### 1. General Specifications The ADE-R5LH+ is a passive, double-balanced mixer that utilizes internal Schottky diodes and integrated transformers. | Parameter | Value / Range | | :--- | :--- | | **RF Frequency Range** | 0.2 MHz to 500 MHz | | **LO Frequency Range** | 0.2 MHz to 500 MHz | | **IF Frequency Range** | DC to 500 MHz | | **LO Drive Level** | +10 dBm (Level 10) | | **Conversion Loss** | 5.5 dB (Typical) | | **Isolation (LO-RF)** | 50 dB (Typical) | | **Package Type** | CD542 (Surface Mount) | --- ### 2. Key Internal Components To understand the "parts" of this component, we must look at its internal architecture: * **Schottky Diode Quad:** The heart of the mixer is a ring of four matched Schottky diodes. These act as high-speed switches driven by the Local Oscillator (LO) signal. * **Balun Transformers:** There are two ferrite-core transmission line transformers (one for the LO port and one for the RF port). These convert unbalanced signals to balanced signals to drive the diode quad. * **Alumina Substrate:** The components are mounted on a ceramic base, providing excellent thermal stability and high-frequency performance. --- ### 3. Pin Configuration The device uses a standard 6-pin layout common to the ADE series. | Pin Number | Function | Description | | :--- | :--- | :--- | | **1** | **LO** | Local Oscillator Input | | **4** | **RF** | Radio Frequency Input/Output | | **3** | **IF** | Intermediate Frequency Output/Input | | **2, 5, 6** | **GND** | Ground connections | --- ### 4. Application Circuit Example A typical usage involves feeding a high-frequency RF signal and a Local Oscillator signal to produce an Intermediate Frequency (IF). ```text [ LO Input (+10dBm) ] | _______|_______ | ADE-R5LH+ | [RF]---| 4 3 |---[IF Output] | 2, 5, 6 | |_______ _______| | [ GND ] ``` ### 5. Features and Advantages * **Low Conversion Loss:** Minimizes signal degradation during the mixing process. * **High Isolation:** Prevents the LO signal from leaking into the RF or IF paths, which simplifies filtering requirements. * **RoHS Compliant:** The "+" suffix indicates that the part is lead-free and meets environmental standards. ---