LTC6953

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Ultralow Jitter, 4.5GHz Clock Distributor with 11 Outputs and JESD204B/JESD204C Support

Analog Devices LTC6953 Product Info

10 February 2026 8

Features

JESD204B/C, Subclass 1 SYSREF Signal Generation
Additive Output Jitter < 6fs_RMS (Integration BW = 12kHz to 20MHz, f = 4.5GHz)
Additive Output Jitter 65fs_RMS (ADC SNR Method)
EZSync^™, ParallelSync^™ Multichip Synchronization

Eleven Independent, Low Noise Outputs with Programmable Coarse Digital and Fine Analog Delays
Flexible Outputs Can Serve as Either a Device Clock or SYSREF Signal
LTC6952 Wizard Software Design Tool Support
–40°C to 125°C Operating Junction Temperature Range

Part details & applications

The LTC6953 is a high performance, ultralow jitter, JESD204B/C clock distribution IC. The LTC6953’s eleven outputs can be configured as up to five JESD204B/C subclass 1 device clock/SYSREF pairs plus one general purpose output, or simply eleven general purpose clock outputs for non-JESD204B/C applications. Each output has its own individually programmable frequency divider and output driver. All outputs can also be synchronized and set to precise phase alignment using individual coarse half cycle digital delays and fine analog time delays.

For applications requiring more than eleven total outputs, multiple LTC6953s can be connected together with LTC6952s and LTC6955s using the EZSync or ParallelSync synchronization protocols.

Applications

High Performance Data Converter Clocking
Wireless Infrastructure
Test and Measurement

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