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Clock/Timing - Application Specific

Image Part Number Description / PDF Quantity Rfq
PI6LC48P0201LE

PI6LC48P0201LE

Zetex Semiconductors (Diodes Inc.)

2-OUTPUT ETHERNET LVPECL SYNTHES

0
PI6LC48P03LEX

PI6LC48P03LEX

Zetex Semiconductors (Diodes Inc.)

3-OUTPUT ETHERNET LVPECL SYNTHES

0
PI6LC48P25104LE

PI6LC48P25104LE

Zetex Semiconductors (Diodes Inc.)

156.25MHZ LVPECL SYNTHESIZER

0
PI6LC48P0301AZHIEX

PI6LC48P0301AZHIEX

Zetex Semiconductors (Diodes Inc.)

3-OUTPUT LVPECL NETWORKING CLOCK

0
PI6LC48H02-01LIEX

PI6LC48H02-01LIEX

Zetex Semiconductors (Diodes Inc.)

CLOCK GENERATOR WITH OUTPUTS AND

0
PI6C557-03BQEX

PI6C557-03BQEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 16QSOP

0
PI6LC48L0201LIEX

PI6LC48L0201LIEX

Zetex Semiconductors (Diodes Inc.)

2-OUTPUT ETHERNET LVPECL SYNTHES

0
PI6C557-05BLEX

PI6C557-05BLEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR TSSOP

0
PI6LC48P0401LIEX

PI6LC48P0401LIEX

Zetex Semiconductors (Diodes Inc.)

4-OUTPUT ETHERNET LVPECL SYNTHES

0
PI6CEQ20200LIEX

PI6CEQ20200LIEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 20-TSSOP

0
PI6LC4872-01ZDIE

PI6LC4872-01ZDIE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR TQFN

0
PI6LC4833ZBIE

PI6LC4833ZBIE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 56TQFN

84
PI6CFGL601BZHIEX

PI6CFGL601BZHIEX

Zetex Semiconductors (Diodes Inc.)

3.3V 1:6 LOW POWER PCIE GENERATO

2500
PI6LC4820ZDEX

PI6LC4820ZDEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR TQFN

0
PI6LC48L0201AZHIEX

PI6LC48L0201AZHIEX

Zetex Semiconductors (Diodes Inc.)

2-OUTPUT LVDS NETWORKING CLOCK G

0
PI6LC48C21LIE

PI6LC48C21LIE

Zetex Semiconductors (Diodes Inc.)

125MHZ CMOS SYNTHESIZER

4600
PI6LC48H02LIE

PI6LC48H02LIE

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 16TSSOP

7
PI6C20400LEX

PI6C20400LEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK BUFF DIFF 28-TSSOP

15128
PI6C557-03AQEX

PI6C557-03AQEX

Zetex Semiconductors (Diodes Inc.)

IC CLOCK GENERATOR 16QSOP

0
PI6LC48H04LIEX

PI6LC48H04LIEX

Zetex Semiconductors (Diodes Inc.)

ETHERNET CLOCK GENERATOR WITH 4

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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