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Product Detailed Parameters
- Description：IC CLK BUFFER 1:4 750MHZ 16QFN
- Series：-
- Package：Tape & Reel (TR),Cut Tape (CT)
- Mfr：Microchip Technology
- Type：Fanout Buffer (Distribution)
- Number of Circuits：1
- Ratio - Input:Output：1:04
- Differential - Input:Output：Yes/Yes
- Input：CML, HCSL, LVCMOS, LVDS, LVPECL
- Output：LVPECL
- Frequency - Max：750 MHz
- Voltage - Supply：2.375V ~ 3.465V
- Operating Temperature：-40°C ~ 85°C
- Mounting Type：Surface Mount
- Package / Case：16-VFQFN Exposed Pad
- Supplier Device Package：16-QFN (3x3)
- Grade：-
- Qualification：-
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Overview
The ZL40202LDF1 is a clock buffer manufactured by Microchip Technology, functioning as a 1-to-4 LVPECL fanout buffer with external termination. It operates within a supply voltage range of 2.375 V to 3.465 V and supports maximum input frequencies up to 750 MHz. The device features a maximum propagation delay of 2 ns and is housed in a QFN-16 package. Designed for surface mount installation, it functions reliably across an operating temperature range from -40°C to +85°C.
Feature Summary
- 1:4 LVPECL fanout buffer configuration
- Maximum input frequency of 750 MHz
- External termination capability
- QFN-16 surface-mount package
Applications
- High-speed digital signal distribution
- Clock tree generation in communication systems
- Data acquisition system timing
Procurement Notes
Verify the specific suffix 'LDF1' against official Microchip documentation to confirm packaging details, as distributor listings may vary. Confirm RoHS compliance status through the manufacturer's datasheet or certification documents before procurement. Ensure ordering quantities align with factory packaging specifications.
Selection Notes
Select this component when a single LVPECL source must drive four distinct loads requiring external termination. Compare against the ZL40202LDG1 variant if tray packaging is preferred over reel packaging. Verify that the 750 MHz frequency limit meets the system's clock requirements and that the QFN-16 footprint fits the PCB layout constraints.
Part Context
This part belongs to the ZL402xx series of smart buffers from Microchip Technology. These devices are designed for low-jitter clock distribution in high-performance applications. The ZL40202LDF1 specifically addresses needs for LVPECL signal integrity with flexible termination options.
Replacement Considerations
The ZL40202LDG1 is a direct functional substitute with identical electrical characteristics but differs in packaging format (Tray vs. Reel). Verify pin compatibility and thermal performance when switching between these variants.
