1. Catalogs
  2. Murata Electronics
  3. Ceramic Resonators CERALOCK®
video corpo

Ceramic Resonators CERALOCK®

Ceramic Resonators CERALOCK®
1 / 32 PagesView full catalog

Ceramic Resonators CERALOCK®

Product catalog summary
Introduction
CERALOCK® ceramic resonators by Murata Manufacturing Co., Ltd. are high-stability piezoelectric devices used as reference signal generators in microprocessor-based equipment. They are valued for their non-adjustment performance, compact size, and cost-effectiveness, with applications in TVs, VCRs, automotive electronics, and more.
Characteristics and Types
  • General Characteristics: CERALOCK® offers high oscillation frequency stability, small size, light weight, and low cost, unaffected by external circuits or voltage fluctuations.
  • Types: Includes MHz Band lead CERALOCK® (CSTLS Series) and MHz Band Chip CERALOCK® (CSACN/CSACM/CSACW/CSTCC/CSTCR/CSTCE/CSTCW Series), each with specific frequency ranges and configurations.
Principles of CERALOCK®
The resonator operates between resonant and anti-resonant frequencies, acting as an inductance with loss. The equivalent circuit consists of inductance, capacitance, and resistance. Comparisons with quartz crystal oscillators highlight differences in capacitance and Qm.
Specifications
  • Electrical Specifications: Detailed for both MHz Band Lead and Chip CERALOCK®.
  • Mechanical and Environmental Specifications: Include durability and environmental condition considerations, with tests for shock, soldering heat, vibration, humidity, temperature cycling, and terminal strength.
Oscillation Circuit Design
Guidelines for designing oscillation circuits using CERALOCK®, including replacing inductors in Colpitts circuits and the importance of feedback resistance and damping resistors. Examples of basic oscillation circuits using C-MOS inverters are provided.
Applications
  • Microcomputers: Used in various microcomputers (4-bit, 8-bit, 16-bit) for stable oscillation properties.
  • Remote Control ICs: Typically operating at frequencies between 3.2M to 4MHz, with examples for Renesas Electronics ICs.
  • Office Equipment ICs: Applied in motor drivers and digital signal processors, with examples for SANYO CD digital signal processors.
  • Other Applications: Used in voice synthesis ICs, with examples for OKI ICs.
Voltage and Starting Characteristics
Compares rise time of ceramic resonators versus quartz crystals, highlighting performance differences at various capacitance levels and supply voltages. Discusses minimum supply voltage required for operation, influenced by IC characteristics.
Notices
Important notices regarding soldering, mounting, storage, operating conditions, and handling to prevent damage and ensure proper operation.
Appendix
Lists equivalent circuit constants for various CERALOCK® models, providing standard values for frequency, resistance, inductance, capacitance, and quality factor.
See more

Catalog excerpts

Ceramic Resonators CERALOCK®-1

Note • Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering. Ceramic Resonator (CERALOCK®) Application Manual

 Open the catalog to page 1
Ceramic Resonators CERALOCK®-2

Note • Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering. Introduction Ceramic resonators (CERALOCK®) are made of high stability piezoelectric ceramics that function as a mechanical resonator. This device has been developed to function as a reference signal generator...

 Open the catalog to page 2
Ceramic Resonators CERALOCK®-3

Note • Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering. 1 Characteristics and Types of CERALOCK® — 02 6 Application Circuits to Various ICs/LSIs Equivalent Circuit Constants of CERALOCK® ————————————————— 29 Characteristics and Types of CERALOCK® Applications of Typical...

 Open the catalog to page 3
Ceramic Resonators CERALOCK®-4

Note • Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering. 1 Characteristics and Types of CERALOCK® 1. General Characteristics of CERALOCK® Ceramic resonators use the mechanical resonance of piezoelectric ceramics. (Generally, lead zirconium titanate: PZT.) The oscillation...

 Open the catalog to page 4
Ceramic Resonators CERALOCK®-5

Note • Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering. Characteristics and Types of CERALOCK® 2. Types of CERALOCK® Part Numbers and Dimensions of lead CERALOCK® (CSTLS Series) Part Number As CSTLS series does not require externally mounted capacitors, the number of...

 Open the catalog to page 5
Ceramic Resonators CERALOCK®-6

Note • Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering. Characteristics and Types of CERALOCK® Product ID Frequency/No capacitance built-in A: No Capacitance Built-in, T: Built-in Capacitance Structure/Size CC/CR/CE/CN/CM: Cap Chip Type, CW: Monolithic Chip Type Nominal...

 Open the catalog to page 6
Ceramic Resonators CERALOCK®-7

Note • Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering. Characteristics and Types of CERALOCK® Dimensions Standard Land Pattern (in mm) 0 The cover film peel strength force 0.1 to 0.7N The cover film peel speed 300mm/min. Cover Film 10˚ CSTCR Series Part Number Dimensions...

 Open the catalog to page 7
Ceramic Resonators CERALOCK®-8

Note • Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering. 2 Principles of CERALOCK® 1. Equivalent Circuit Constants Fig. 2-1 shows the symbol for a ceramic resonator. The impedance and phase characteristics measured between the terminals are shown in Fig. 2-2. This illustrates...

 Open the catalog to page 8
Ceramic Resonators CERALOCK®-9

Note • Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering. The table on this page shows a comparison of the equivalent constants between CERALOCK® and a quartz crystal oscillator. In comparison, there is a large difference in capacitance and Qm, which results in the difference...

 Open the catalog to page 9
Ceramic Resonators CERALOCK®-10

Note • Please read rating and CAUTION (for storage, operating, rating, soldering, mounting and handling) in this catalog to prevent smoking and/or burning, etc. • This catalog has only typical specifications because there is no space for detailed specifications. Therefore, please review our product specifications or consult the approval sheet for product specifications before ordering. Notes (Note 1) The relationship between the size of the resonator and the resonant frequency is described as follows. For example, the frequency doubles if the thickness doubles, when thickness vibration is used....

 Open the catalog to page 10

All Murata Electronics catalogs and technical brochures

  1. MEMS Sensors

    4  Pages

  2. SAW Traps

    1  Page

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.