## Overview of the 9FGV0841AKLFT The **9FGV0841AKLFT** is a high-performance clock generator belonging to the **IDT (now Renesas)** PhiClock™ series. It is specifically designed as an 8-output Very Low Power (VLP) PCIe Gen1-2-3-4-5 compliant clock generator. --- ### Key Technical Specifications | Parameter | Specification | | :--- | :--- | | **Manufacturer** | Renesas Electronics (formerly IDT) | | **Core Voltage** | 1.8V | | **Number of Outputs** | 8 Differential Outputs (HCSL/LP-HCSL) | | **Interface** | SMBus / I2C | | **Standard Support** | PCIe Gen1 through Gen5 | | **Package** | 48-VFQFPN (6 x 6 mm) | | **Operating Temp** | -40°C to +85°C (Industrial Grade) | --- ### Core Components & Features 1. **Low Power HCSL Outputs:** The device utilizes Low-Power HCSL (Host Clock Signal Level) outputs, which eliminate the need for external termination resistors, significantly reducing board space and power consumption. 2. **PCIe Compliance:** It is engineered to meet the stringent jitter requirements of **PCIe Gen5**, making it suitable for modern high-speed data centers and networking equipment. 3. **Programmability:** * **I2C/SMBus Interface:** Allows for real-time configuration of output frequencies, enable/disable states, and spread spectrum settings. * **OTP (One-Time Programmable) Memory:** Supports custom configurations at the factory or during assembly. 4. **Power Management:** It features individual output enable pins and a power-down pin to minimize energy usage in idle states. --- ### Typical Application Circuit When integrating this part into a PCB design, the following connections are standard: ```mermaid graph LR Crystal[25MHz Crystal] --> 9FGV0841 Power[1.8V Power Supply] --> 9FGV0841 I2C[SMBus Controller] <--> 9FGV0841 9FGV0841 --> Out1[CPU/Chipset] 9FGV0841 --> Out2[NVMe SSD] 9FGV0841 --> Out3[Network Card] 9FGV0841 --> Out4[FPGA] ``` --- ### Part Number Breakdown (Suffixes) * **AKL**: Package code (VFQFPN 48-pin). * **F**: Lead-free / RoHS compliant. * **T**: Tape and Reel packaging for automated assembly.