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Clock/Timing - Application Specific

Image Part Number Description / PDF Quantity Rfq
PI6LC48H02LIEX

PI6LC48H02LIEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 16TSSOP

0
PI6C20800BIAEX

PI6C20800BIAEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK BUFFER 1:8 48TSSOP

0
PI6C20800SAE

PI6C20800SAE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK BUFFER 1:8 48TSSOP

43
PI6C557-06LE

PI6C557-06LE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 20-TSSOP

12
PI6C20800SAEX

PI6C20800SAEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK BUFFER 1:8 48TSSOP

3073
PI6C20400ALEX

PI6C20400ALEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK BUFFER 1:4 28TSSOP

0
PI6LC48P0401LIE

PI6LC48P0401LIE

Zetex Semiconductors (Diodes Inc.)

IC FREQ SYNTHESIZER 24TSSOP

0
PI6CFGL202BLIEX

PI6CFGL202BLIEX

Zetex Semiconductors (Diodes Inc.)

3.3V 1:2 LOW POWER PCIE GENERATO

0
PI6LC48P0101LIE

PI6LC48P0101LIE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK 625MHZ 1CIR 8TSSOP

0
PI6CFGL201BZDIEX

PI6CFGL201BZDIEX

Zetex Semiconductors (Diodes Inc.)

2 OUTPUT LOW POWER PCIE G3 CLOCK

0
PI6LC48P03AZHIEX

PI6LC48P03AZHIEX

Zetex Semiconductors (Diodes Inc.)

3-OUTPUT LVPECL NETWORKING CLOCK

0
PI6LC4833ZBIEX

PI6LC4833ZBIEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR TQFN

0
PI6LC48C21LIEX

PI6LC48C21LIEX

Zetex Semiconductors (Diodes Inc.)

125MHZ CMOS SYNTHESIZER

0
PI6LC48P0201AZHIE

PI6LC48P0201AZHIE

Zetex Semiconductors (Diodes Inc.)

2-OUTPUT LVPECL NETWORKING CLOCK

0
PI6LC48C21LEX

PI6LC48C21LEX

Zetex Semiconductors (Diodes Inc.)

125MHZ CMOS SYNTHESIZER

0
PI6C20400AHE

PI6C20400AHE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK BUFFER 1:4 28SSOP

0
PI6CEQ20200LEX

PI6CEQ20200LEX

Zetex Semiconductors (Diodes Inc.)

C CLOCK GENERATOR 20-TSSOP

0
PI6LC48C21LE

PI6LC48C21LE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK 130MHZ 1CIR 8TSSOP

0
PI6C557-05LEX

PI6C557-05LEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR TSSOP

9231
PI6C557-03AQE

PI6C557-03AQE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 16QSOP

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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