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Clock/Timing - Application Specific

Image Part Number Description / PDF Quantity Rfq
PI6PCIEB24ZDEX

PI6PCIEB24ZDEX

Zetex Semiconductors (Diodes Inc.)

IC ZERO DELAY CLK BUFF 1:4 TQFN

0
PI6C557-05BLE

PI6C557-05BLE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 20-TSSOP

62
PI6C557-01BQZHIEX

PI6C557-01BQZHIEX

Zetex Semiconductors (Diodes Inc.)

PCIE 3.0 CLOCK GENERATOR, 1 HCSL

180
PI6CFGL401BZHIEX

PI6CFGL401BZHIEX

Zetex Semiconductors (Diodes Inc.)

3.3V 1:4 LOW POWER PCIE GENERATO

0
PI6CEQ20200LIE

PI6CEQ20200LIE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 20-TSSOP

1332
PI6C49018ZDIEX

PI6C49018ZDIEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR TQFN

0
PI6LC48P04LIEX

PI6LC48P04LIEX

Zetex Semiconductors (Diodes Inc.)

4-OUTPUT LVPECL NETWORKING CLOCK

0
PI6LC48P0301AZHIE

PI6LC48P0301AZHIE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 28TQFN

337
PI6LC48P0301LIE

PI6LC48P0301LIE

Zetex Semiconductors (Diodes Inc.)

IC FREQ SYNTHESIZER 24TSSOP

28
PI6CDBL401BZHIEX

PI6CDBL401BZHIEX

Zetex Semiconductors (Diodes Inc.)

3.3V 1:4 LOW POWER PCIE BUFFER

912
PI6C20400AHEX

PI6C20400AHEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK BUFFER 1:4 28SSOP

0
PI6LC48P0101LIEX

PI6LC48P0101LIEX

Zetex Semiconductors (Diodes Inc.)

HIFLEX 10GBE CLOCK GENERATOR

0
PI6C557-03BLE

PI6C557-03BLE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 16TSSOP

1
PI6LC48S25AZBBIEX

PI6LC48S25AZBBIEX

Zetex Semiconductors (Diodes Inc.)

HIFLEX ETHERNET NETWORK CLOCK GE

0
PI6C557-05QLEX

PI6C557-05QLEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR TSSOP

0
PI6C557-03AQLEX

PI6C557-03AQLEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 16TSSOP

0
PI6LC4840ZHEX

PI6LC4840ZHEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 32TQFN

0
PI6C49019AIEX

PI6C49019AIEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR TSSOP

0
PI6CFGL402BLIE

PI6CFGL402BLIE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK 200MHZ 1CIR 20TSSOP

0
PI6LC48P0405LIE

PI6LC48P0405LIE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK 125MHZ 1CIR 24TSSOP

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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