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Differential TCXO: High-Precision Low-Jitter Clock Oscillators Explained

Release time:

2025-04-16 17:00

What is a Differential TCXO?

Differential TCXOs combine temperature compensation with differential outputs like LVDS, LVPECL, and HCSL to deliver superior stability and EMI immunity.

Key Features

±0.5 ppm temperature stability
Ultra-low jitter below 1 ps
Strong EMI immunity
Operates from -40°C to +125°C
Supports LVDS, LVPECL, and HCSL interfaces

Output Types and Applications

Type	Features	Applications
LVDS	Low power, long-distance	Data centers, FPGA, optical modules
LVPECL	High speed, sharp edges	SerDes, high-speed networking
HCSL	PCIe-compatible, energy-saving	Servers, industrial platforms

Top 5 Application Scenarios

Fiber Optic Communications

Provides reference clocks like 25 MHz, 156.25 MHz to SerDes in optical modules.

Data Centers

Delivers HCSL clocks to PCIe, FPGA, and memory controllers for timing consistency.

5G Base Stations

Ensures CU/DU synchronization with 26 MHz, 30.72 MHz outputs for TDD, MIMO support.

Industrial Control

Offers stable timing to PLCs and Ethernet chips, resistant to harsh environments.

High-Speed Sampling

Used in ADC/DAC systems with low-jitter clocks like 100 MHz, 125 MHz, 200 MHz.

Differential vs. Standard TCXO Comparison

Feature	Standard TCXO	Differential TCXO
Output Type	CMOS, Clipped Sine	LVDS, LVPECL, HCSL
EMI Immunity	Moderate	High
Phase Jitter	3–10 ps	0.5–1 ps
Temp Range	-40~85°C	-40~125°C
Use Case	Consumer electronics	5G, industrial, servers, ADC/DAC

FCom Differential TCXO Solutions

FCom provides 25–200 MHz Differential TCXOs with LVDS, LVPECL, HCSL outputs, ±0.5 ppm accuracy, AEC-Q100 compliance, and jitter below 1 ps. Ideal for 5G, data centers, and high-speed systems.

FVT-3L | 3.2x2.5mm

FVT-5L | 5.0x3.2mm

FVT-7L | 7.0x5.0mm

Key words:

application

Fcom

Automotive Electronics

Fire-fighting

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