The **PLL602-03HOC-R** is a high-performance, low-power Clock Frequency Synthesizer IC designed by Microchip Technology (formerly PhaseLink). It is specifically engineered to generate high-frequency clock outputs from low-frequency crystal inputs using an internal Phase-Locked Loop (PLL). --- ### 1. Key Technical Specifications | Feature | Specification | | :--- | :--- | | **Part Number** | PLL602-03HOC-R | | **Type** | Clock/Frequency Synthesizer | | **Output Type** | CMOS | | **Input Frequency** | 10MHz to 27MHz (Crystal or Reference) | | **Output Frequency** | Up to 100MHz (3x Multiplication) | | **Operating Voltage** | 3.3V (Typical) | | **Package** | SOT-23-6L (Small Outline Transistor) | | **Operating Temp** | 0°C to 70°C (Commercial) | --- ### 2. Functional Description The device functions as a **Frequency Multiplier**. Its primary role is to take a standard crystal frequency and "up-convert" it to a higher frequency while maintaining phase stability. * **Internal PLL:** The core of the chip is a Phase-Locked Loop that synchronizes the output frequency to a multiple of the input reference. * **Low Jitter:** It is designed to minimize "phase noise," which is critical for high-speed data transmission and stable digital logic. * **Power Management:** The "H" in the part number often denotes a specific power or frequency configuration, optimized for low-current consumption in portable devices. --- ### 3. Pinout Configuration (SOT-23-6) Below is the typical pin mapping for this 6-pin device: | Pin # | Name | Description | | :--- | :--- | :--- | | 1 | **XIN/CLK** | Crystal or Reference Clock Input | | 2 | **GND** | Ground | | 3 | **XOUT** | Crystal Output (Leave floating if using external clock) | | 4 | **CLKOUT** | CMOS Clock Output | | 5 | **VDD** | Power Supply (3.3V) | | 6 | **OE / SEL** | Output Enable or Frequency Selection Pin | --- ### 4. Common Applications The PLL602-03 series is widely used in electronics requiring localized clock generation: * **Networking:** Routers and switches requiring stable timing. * **Consumer Electronics:** Set-top boxes, DVD players, and digital TVs. * **PC Peripherals:** USB hubs and PCIe bridge chips. * **Embedded Systems:** Microcontrollers requiring a clock boost beyond their internal oscillators. --- ### 5. Ordering Information Decoded * **PLL602-03:** Base part number (Frequency Multiplier family). * **H:** High-frequency/Specific configuration variant. * **OC:** Package code (usually refers to the SOT-23 plastic package). * **-R:** Tape and Reel (Packaging format for automated assembly). ---