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Clock/Timing - Application Specific

Image Part Number Description / PDF Quantity Rfq
PI6LC48P21LEX

PI6LC48P21LEX

Zetex Semiconductors (Diodes Inc.)

125MHZ LVPECL SYNTHESIZER

0
PI6LC48P21LE

PI6LC48P21LE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR LVPECL 8TSSOP

0
PI6C557-03BLEX

PI6C557-03BLEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 16TSSOP

0
PI6LC48S25ZBBIEX

PI6LC48S25ZBBIEX

Zetex Semiconductors (Diodes Inc.)

HIFLEX ETHERNET NETWORK CLOCK GE

0
PI6LC48P03LIE

PI6LC48P03LIE

Zetex Semiconductors (Diodes Inc.)

3-OUTPUT ETHERNET LVPECL SYNTHES

0
PI6C20800SIAEX

PI6C20800SIAEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK BUFFER 1:8 48TSSOP

0
PI6C557-03ALEX

PI6C557-03ALEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 16TSSOP

0
PI6C20400BHEX

PI6C20400BHEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK BUFFER 1:4 28SSOP

0
PI6LC48P0201LIE

PI6LC48P0201LIE

Zetex Semiconductors (Diodes Inc.)

IC FREQ SYNTHESIZER 20TSSOP

102
PI6LC48P0201LIEX

PI6LC48P0201LIEX

Zetex Semiconductors (Diodes Inc.)

2-OUTPUT ETHERNET LVPECL SYNTHES

0
PI6C20800BAEX

PI6C20800BAEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK BUFFER 1:8 48TSSOP

0
PI6LC48P21LIE

PI6LC48P21LIE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR LVPECL 8TSSOP

0
PI6LC48L0201LIE

PI6LC48L0201LIE

Zetex Semiconductors (Diodes Inc.)

IC FREQ SYNTHESIZER 20TSSOP

0
PI6LC48P04LIE

PI6LC48P04LIE

Zetex Semiconductors (Diodes Inc.)

4-OUTPUT LVPECL NETWORKING CLOCK

0
PI6LC48P25104LIE

PI6LC48P25104LIE

Zetex Semiconductors (Diodes Inc.)

IC FREQ SYNTHESIZER 8TSSOP

159
PI6C20800SVEX

PI6C20800SVEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK BUFFER 1:8 SSOP

0
PI6LC48P02LIE

PI6LC48P02LIE

Zetex Semiconductors (Diodes Inc.)

IC FREQ SYNTHESIZER 20TSSOP

0
PI6CFGL402BLIEX

PI6CFGL402BLIEX

Zetex Semiconductors (Diodes Inc.)

3.3V 1:4 LOW POWER PCIE GENERATO

0
PI6LC4872-01ZDIEX

PI6LC4872-01ZDIEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR TQFN

0
PI6LC48P0405LIEX

PI6LC48P0405LIEX

Zetex Semiconductors (Diodes Inc.)

4-OUTPUT ETHERNET LVPECL SYNTHES

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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