ECL Oscillators

Reviewed by: Jon Lowy, consulting engineer

Description

ECL (Emitter-Coupled Logic) Oscillators are electronic circuits that generate periodic waveforms. These oscillators are known for their high-speed performance and are typically used in applications requiring fast switching times and high-frequency operation.

Working Principle

ECL Oscillators operate based on the principles of Emitter-Coupled Logic, which is a type of digital circuit that uses differential amplifiers to achieve high-speed operation. The core of an ECL oscillator consists of a feedback loop that includes an amplifier and a resonator. The amplifier provides the necessary gain to sustain oscillations, while the resonator determines the frequency of the oscillations. The high-speed switching capability of ECL circuits makes these oscillators particularly useful in applications where timing precision and fast response times are critical.

Applications

ECL Oscillators are commonly used in high-frequency communication systems, such as cellular base stations and satellite communication systems, where precise timing and fast data processing are essential. They are also employed in high-speed data acquisition systems and advanced radar systems, where rapid signal processing is required.

Advantages over other Oscillators

One of the primary advantages of ECL Oscillators over other types of oscillators, such as CMOS or quartz crystal oscillators, is their high-speed performance. ECL circuits can switch faster than CMOS circuits, making them suitable for applications requiring rapid data processing. Additionally, ECL Oscillators offer better noise immunity and lower phase noise compared to other oscillator types, which is crucial in maintaining signal integrity in high-frequency applications.

Limitations

Despite their advantages, ECL Oscillators have some limitations. They typically consume more power than CMOS oscillators, which can be a drawback in battery-operated or energy-sensitive applications. Additionally, ECL circuits generate more heat, requiring efficient thermal management to ensure reliable operation. The complexity of ECL circuit design can also be a limiting factor, as it may require more sophisticated design techniques and higher manufacturing costs.

Considerations

When considering ECL Oscillators for a project, several factors should be taken into account:

Initial Costs: ECL Oscillators can be more expensive to design and manufacture compared to other types of oscillators due to their complexity and the need for high-speed components.
Operating Expense: The higher power consumption of ECL Oscillators can lead to increased operating costs, especially in applications where power efficiency is critical.
Durability: ECL circuits are generally robust, but their higher power consumption and heat generation require effective thermal management to ensure long-term reliability.
Accuracy: ECL Oscillators offer high accuracy and low phase noise, making them suitable for precision applications.
Replacement and Maintenance Costs: The complexity and high-speed nature of ECL Oscillators may result in higher maintenance and replacement costs compared to simpler oscillator types.

62 Results

Crystal Oscillators -- 2398094 [XFP336312.500000I from Integrated Device Technology]
from RS Components, Ltd.

312.500000 MHz 3.3VDC LVPECL 3225 [See More]

Output Type: ECL; PECL; LVPECL; LVPECL
Package / Form Factor: LGA

Oscillator Type: Clock Oscillator
Features / Standards: RoHS

Crystal Oscillators -- 2398095 [XFP336312.500000I from Integrated Device Technology]
from RS Components, Ltd.

312.500000 MHz 3.3VDC LVPECL 3225 [See More]

Output Type: ECL; PECL; LVPECL; LVPECL
Package / Form Factor: LGA

Oscillator Type: Clock Oscillator
Features / Standards: RoHS

Crystal Oscillators -- 2398096 [XFP536625.000000I from Integrated Device Technology]
from RS Components, Ltd.

625.000000 MHz 3.3VDC LVPECL 5032 [See More]

Output Type: ECL; PECL; LVPECL; LVPECL
Package / Form Factor: LGA

Oscillator Type: Clock Oscillator
Features / Standards: RoHS

Crystal Oscillators -- 2398097 [XFP536625.000000I from Integrated Device Technology]
from RS Components, Ltd.

625.000000 MHz 3.3VDC LVPECL 5032 [See More]

Output Type: ECL; PECL; LVPECL; LVPECL
Package / Form Factor: LGA

Oscillator Type: Clock Oscillator
Features / Standards: RoHS

Crystal Oscillators -- 2398102 [XTP332156.250000I from Integrated Device Technology]
from RS Components, Ltd.

156.250000 MHz 3.3VDC LVPECL 3225 [See More]

Output Type: ECL; PECL; LVPECL; LVPECL
Package / Form Factor: LGA

Oscillator Type: Clock Oscillator
Features / Standards: RoHS

Crystal Oscillators -- 2398103 [XTP332156.250000I from Integrated Device Technology]
from RS Components, Ltd.

156.250000 MHz 3.3VDC LVPECL 3225 [See More]

Output Type: ECL; PECL; LVPECL; LVPECL
Package / Form Factor: LGA

Oscillator Type: Clock Oscillator
Features / Standards: RoHS

View Datasheet

Crystal Oscillator -- 12061
from Lansdale Semiconductor, Inc.

Motorola/Freescale - ECL PLL 12000. MECL PLL is a family of devices designed to perform phase-locked loop functions such as phase detectors, dividers, and oscillators, using the high speed characteristics of the MECL 10K process. [See More]

Output Type: ECL; MECL
Package / Form Factor: Surface Mount

Oscillator Type: XO
Frequency: 2 to 20

Oscillator MEMS 125MHz ±50ppm (Stability) LVPECL 55% 3.3V 6-Pin QFN SMD Bulk -- 707-SIT9120AI-1C3-33E125.000000 - Image

Oscillator MEMS 125MHz ±50ppm (Stability) LVPECL 55% 3.3V 6-Pin QFN SMD Bulk -- 707-SIT9120AI-1C3-33E125.000000 [SIT9120AI-1C3-33E125.000000 from SiTime Corporation]
from Utmel Electronic Limited

Oscillator MEMS 125MHz ±50ppm (Stability) LVPECL 55% 3.3V 6-Pin QFN SMD Bulk [See More]

Output Type: ECL; PECL; LVPECL

Features / Standards: RoHS

Oscillators -- 510ABA100M000AAG [510ABA100M000AAG from Skyworks Solutions, Inc.]
from Acme Chip Technology Co., Limited

XTAL OSC XO 100.0000MHZ LVPECL [See More]

Output Type: ECL; PECL; LVPECL; LVPECL
Package / Form Factor: Surface Mount; Surface Mount

Oscillator Type: XO; XO (Standard)
Frequency: 100

Crystals, Oscillators, Resonators - Pin Configurable/Selectable Oscillators -- M665-02-AA-AEJT - Image

Crystals, Oscillators, Resonators - Pin Configurable/Selectable Oscillators -- M665-02-AA-AEJT [M665-02-AA-AEJT from Renesas Electronics Corporation]
from Shenzhen Shengyu Electronics Technology Limited

Crystals, Oscillators, Resonators - Pin Configurable/Selectable Oscillators [See More]

Output Type: ECL; PECL; LVPECL; LVPECL
Operating Temperature: -40 to 85

Oscillator Type: VCSO (SAW)

View Datasheet

Clock Oscillators -- F562
from Filtronetics, Inc.

Dimensions L x W (mm): 12.70 x 12.70 Input current: 65 mA max, 40 mA typical (varies with frequency.) Aging: 5 ppm/year typical. Package: CRS nickel plated or stainless steel, hermetically sealed. [See More]

Output Type: ECL
Package / Form Factor: Through Hole