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Clock/Timing - Application Specific

Image Part Number Description / PDF Quantity Rfq
PI6LC48L0201AZHIE

PI6LC48L0201AZHIE

Zetex Semiconductors (Diodes Inc.)

2-OUTPUT LVDS NETWORKING CLOCK G

0
PI6CEQ20200LE

PI6CEQ20200LE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 20-TSSOP

4
PI6C557-03AQLE

PI6C557-03AQLE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 16TSSOP

87
PI6LC48H04LIE

PI6LC48H04LIE

Zetex Semiconductors (Diodes Inc.)

PCIE 3.0 AND ETHERNET CLOCK GENE

0
PI6LC48P0301LEX

PI6LC48P0301LEX

Zetex Semiconductors (Diodes Inc.)

3-OUTPUT ETHERNET LVPECL SYNTHES

0
PI6LC48P0201AZHIEX

PI6LC48P0201AZHIEX

Zetex Semiconductors (Diodes Inc.)

2-OUTPUT LVPECL NETWORKING CLOCK

0
PI6C557-01BZHIEX

PI6C557-01BZHIEX

Zetex Semiconductors (Diodes Inc.)

C CLOCK GENERATOR 16TQFN

20
PI6LC48P03LE

PI6LC48P03LE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK 700MHZ 1CIR 24TSSOP

0
PI6C557-03LEX

PI6C557-03LEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR TSSOP

7684
PI6LC4830ZHEX

PI6LC4830ZHEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 32TQFN

0
PI6LC48P0301LE

PI6LC48P0301LE

Zetex Semiconductors (Diodes Inc.)

3-OUTPUT ETHERNET LVPECL SYNTHES

0
PI6C557-05QLE

PI6C557-05QLE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR TSSOP

0
PI6CDBL402BLIEX

PI6CDBL402BLIEX

Zetex Semiconductors (Diodes Inc.)

3.3V 1:4 LOW POWER PCIE BUFFER

0
PI6LC48P02LIEX

PI6LC48P02LIEX

Zetex Semiconductors (Diodes Inc.)

2-OUTPUT FIBRE CHANNEL LVPECL SY

0
PI6LC48P0201LEX

PI6LC48P0201LEX

Zetex Semiconductors (Diodes Inc.)

2-OUTPUT ETHERNET LVPECL SYNTHES

0
PI6LC48P25104LEX

PI6LC48P25104LEX

Zetex Semiconductors (Diodes Inc.)

156.25MHZ LVPECL SYNTHESIZER

0
PI6LC48P0301AZHEX

PI6LC48P0301AZHEX

Zetex Semiconductors (Diodes Inc.)

3-OUTPUT LVPECL NETWORKING CLOCK

0
PI6C20400BLEX

PI6C20400BLEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK BUFFER 1:4 28TSSOP

6848
PI6LC48P25104LIEX

PI6LC48P25104LIEX

Zetex Semiconductors (Diodes Inc.)

156.25MHZ LVPECL SYNTHESIZER

0
PI6LC48H02-01LIE

PI6LC48H02-01LIE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 16TSSOP

0

Clock/Timing - Application Specific

1. Overview

Application-Specific Clock/Timing ICs are specialized semiconductor devices designed to generate, distribute, and manage precise timing signals for targeted system requirements. Unlike general-purpose timing solutions, these ICs integrate optimized architectures for specific performance metrics such as ultra-low jitter, high-frequency stability, or specialized synchronization protocols. They play a critical role in ensuring system reliability, data integrity, and operational efficiency across modern electronics, from telecommunications infrastructure to automotive control systems.

2. Major Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Real-Time Clocks (RTC)Low-power timekeeping with calendar functions, often integrated with memoryComputers, smart meters, medical devices
Clock GeneratorsMulti-output frequency synthesis with programmable phase alignmentNetworking equipment, FPGAs, servers
Jitter AttenuatorsPhase noise reduction using advanced PLL architectures5G base stations, high-speed transceivers
Fanout BuffersSignal replication with skew control and impedance matchingIndustrial automation, PCIe systems
Clock ControllersDynamic frequency switching and redundancy managementAutomotive ADAS, aerospace systems

3. Structure and Composition

Typical devices feature:

  • Package Types: QFN, BGA, TSSOP (sizes from 2x2mm to 14x14mm)
  • Core Components: Crystal oscillator interface, fractional-N PLL, programmable dividers, LVDS/CML output drivers
  • Specialized Circuits: Spread-spectrum control, failover multiplexers, temperature compensation modules
  • Power Management: Multiple voltage domains, low-dropout regulators for analog/digital isolation

4. Key Technical Specifications

ParameterSignificanceTypical Values
Frequency RangeDetermines application suitability1kHz 1GHz
Phase Jitter (RMS)Impacts signal integrity in high-speed systems50fs 5ps
Power Supply RangeAffects system design flexibility1.8V 5.5V
Operating TemperatureDefines environmental robustness-40 C to +125 C
Phase Noise @1MHz OffsetCritical for RF/wireless applications-155dBc/Hz

5. Application Fields

  • Telecommunications: 5G massive MIMO arrays, optical transceivers
  • Industrial: Programmable logic controllers (PLCs), precision test equipment
  • Automotive: Advanced driver assistance systems (ADAS), vehicle networking
  • Consumer Electronics: High-resolution displays, AR/VR headsets

6. Leading Manufacturers and Products

VendorProduct SeriesKey Features
TI (Texas Instruments)CDCM62xx3.2GHz clock generator with 50fs jitter
STMicroelectronicsM41Txx RTC 2ppm accuracy with embedded EEPROM
Microchip TechnologyZL303xxIEEE 1588 boundary clock synchronization
Analog DevicesHMC704414-output jitter attenuator for RF systems

7. Selection Guidelines

  • Application Requirements: Prioritize jitter specifications for communications vs. power consumption for portable devices
  • Frequency Precision: Use MEMS-based oscillators for vibration resistance in automotive applications
  • Environmental Factors: Select industrial-grade (-40 to +85 C) for outdoor equipment
  • Integration Level: Combine clock generation + buffering in single chip for space-constrained designs
  • Compliance: Verify automotive (AEC-Q100), aerospace (ECSS) certifications

8. Industry Trends

Emerging directions include:

  • Integration of AI-driven phase calibration algorithms
  • Development of chip-scale atomic clock (CSAC) technology for sub-ppb stability
  • Adoption of 3D packaging to minimize parasitic capacitance
  • Increasing demand for multi-standard timing solutions (5G+GNSS+Ethernet)
  • Growth of energy-harvesting RTC ICs for IoT edge devices
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