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Product Detailed Parameters
- Description：IC CLK BUFFER 2:8 750MHZ 32QFN
- Series：-
- Package：Tape & Reel (TR),Cut Tape (CT)
- Mfr：Microchip Technology
- Type：Fanout Buffer (Distribution), Multiplexer
- Number of Circuits：1
- Ratio - Input:Output：2:08
- 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：32-VFQFN Exposed Pad
- Supplier Device Package：32-QFN (5x5)
- Grade：-
- Qualification：-
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Overview
The ZL40210LDF1 is a clock buffer manufactured by Microchip Technology, functioning as a 2:8 LVPECL fanout buffer with external termination. It belongs to the miSmartBuffer family, designed for low skew and ultra-low added jitter applications. The device supports input frequencies up to 750 MHz and operates within a supply voltage range of 2.375 V to 3.465 V. It is housed in a 32-VFQFN package with an exposed pad, suitable for surface mount installation across an operating temperature range of -40°C to +85°C.
Feature Summary
- 2:8 LVPECL fanout buffer configuration
- Ultra-low added jitter performance
- External termination capability
- miSmartBuffer series integration
Applications
- High-speed data communication systems
- Server and storage infrastructure clock distribution
- Telecommunications equipment timing networks
Procurement Notes
Verify the specific suffix 'LDF1' against the official datasheet to confirm package type and tape-and-reel specifications. Ensure compatibility with existing PCB footprints for the 32-VFQFN form factor. Confirm that external termination resistors are included in the design, as this variant requires them rather than internal termination.
Selection Notes
Select the ZL40210LDF1 when a 2-input to 8-output LVPECL distribution is required with external termination options. Compare against the ZL40210LDG1 if tray packaging is preferred over reel packaging. Ensure the system design accommodates the necessary external termination components specified in the electrical characteristics section of the datasheet.
Part Context
This component is part of the Microchip ZL402x series of clock buffers. It complements other variants like the ZL40221 (2:6 LVDS) and ZL40235 (2:5 mixed LVPECL/LVDS). The series allows for building complete clock trees when combined with miClockSynth synthesizers, offering flexibility in input/output logic families and fan-out ratios.
Replacement Considerations
The ZL40210LDG1 is a pin-compatible alternative differing primarily in packaging (tray vs. reel). Verify that the external termination requirement remains consistent across substitutes. No direct functional equivalents from other manufacturers are confirmed in the provided source material.
