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8T73S208B-01NLGI is a clock buffer chip introduced by Renesas. It uses 32-VFQFN package and is mainly used to buffer and distribute clock signals. The following are its core parameters: ‌

Type: Fan-out buffer (allocation), divider

Number of circuits: 1

Ratio - Input: Output: 1:8

Differential - Input: Output: Yes/Yes

Input: CML, LVDS, LVPECL

Output: LVPECL

Frequency - Maximum: 1 GHz

Voltage - Power supply: 2.375V to 3.465V

Operating temperature: -40°C to 85°C

Installation type: Surface mount type

Package/Housing: 32-VFQFN

Introduction

The 8T73S208B-01NLGI is a high-performance differential LVPECL clock divider and fan-out buffer. This device is designed for frequency division and signal fan-out of high-frequency, low-phase noise clocks. The 8T73S208B-01NLGI is characterized by its operation under 2.5V and 3.3V power supplies. The guaranteed output-to-output and part-to-part skew characteristics make the 8T73S208B-01NLGI an ideal choice for clock distribution applications that require clear performance and repeatability.

In addition, the integrated input terminal resistor of the 8T73S208B-01NLGI makes the interface with the reference source easy and reduces the number of passive components. Each output can be enabled or disabled independently in a high-impedance state controlled by the I2C register. When powered on, all outputs are disabled.

Main features

A differential input reference clock

The differential pair can accept the following differential input levels :LVDS, LVPECL, CML

Integrated input terminal resistor

8-channel LVPECL output

The optional clock divisions are 1, 2, 4 and 8

Maximum input clock frequency :1GHz

Control the level of the LVCMOS interface input

Enable/Disable independent output through the I2C interface

Power-on status: All outputs are disabled

Output skew :60ps(maximum)

Output rise/fall time :350ps(maximum value)

Low additive phase jitter, root mean square :182fs(typical value)

Full 2.5V and 3.3V power supply voltages

Lead-free (RoHS 6) 32-pin VFQFN package

The operating temperature range is from -40°C to 85°C

Application scenarios

8T73S208B-01NLGI achieves buffering and distribution of clock signals through differential signals, mainly including:

High-speed communication systems ‌ : such as clock signal distribution and synchronization for 5G communication base stations and data centers.

Industrial control ‌ : clock buffer management for PLCS and automated equipment.

Video processing system: Clock signal distribution and anti-interference processing for high-definition display devices and video transmission equipment. ‌

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