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CS2300CP-CZZR

Fractional-N clock multiplier, int LCO, 75MHz, I2C/SPI, 10-MSOP, 3.3V

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Manufacturer Part：

CS2300CP-CZZR

Package：

10-MSOP / 10-TFSOP (3.0 x 3.0 x 1.1mm)

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Description

Product Overview

The CS2300CP-CZZR from Cirrus Logic is a fractional-N clock multiplier with an integrated low-jitter LC oscillator (LCO) in a 10-MSOP package. It provides precise output clock generation with hybrid analog-digital PLL architecture, supporting I2C and SPI control interfaces and operating from 3.1V to 3.5V supply.

Key Specifications

Type Fanout Distribution, Fractional-N Synthesizer
PLL Yes (Hybrid Analog-Digital)
Maximum Frequency 75MHz
Input:Output Ratio 1:2
Divider/Multiplier Yes / Yes
Control Interface I2C and SPI (write-only)
Supply Voltage 3.1V to 3.5V
Supply Current 23mA max
Package 10-MSOP (3.0 x 3.0mm)
Operating Temperature -10°C to +70°C

Features

  • Delta-Sigma fractional-N frequency synthesizer
  • Integrated low-jitter LC oscillator (LCO)
  • Hybrid analog-digital PLL architecture
  • CLK_IN skipping mode for intermittent reference
  • I2C and SPI control port options
  • Auto-calibrating loop filter bandwidth
  • Two clock outputs with fanout distribution
  • Compact 10-MSOP package

Applications

  • Timing reference clock generation
  • Audio and video clock synthesis
  • Clock jitter cleaning and distribution
  • Telecom and networking equipment
  • Consumer electronics clock management

The CS2300CP-CZZR from Cirrus Logic is a fractional-N clock multiplier with an integrated low-jitter LC oscillator (LCO). It uses a hybrid analog-digital PLL architecture combining a delta-sigma fractional-N frequency synthesizer with a digital PLL to generate precise output clock frequencies. The device supports both I2C and SPI control interfaces and features CLK_IN skipping mode for applications with intermittent or missing reference clocks.

The CS2300CP combines an analog delta-sigma fractional-N frequency synthesizer with a digital PLL. The internal LCO provides a stable low-jitter reference clock. The fractional-N synthesizer multiplies this reference by a programmable factor N to generate the output frequency. The digital PLL compares the ratio of output and reference clocks, calculates the optimal N value, and automatically adjusts the loop filter bandwidth. The I2C interface allows bidirectional register access, while the SPI interface supports write-only operation at speeds up to 6MHz. CLK_IN skipping mode enables operation when the reference clock is intermittent.

Pin Name Type Function
1 FILTP Analog LCO filter capacitor (+)
2 FILTN Analog LCO filter capacitor (-)
3 CLK_IN Input Reference clock input
4 VDD Power Supply voltage (3.3V)
5 GND Power Ground
6 CLK_OUT2 Output Clock output 2
7 CLK_OUT1 Output Clock output 1
8 SCL/CCLK Input I2C clock / SPI clock
9 SDA/CDIN I/O I2C data / SPI data in
10 CS/AD0 Input SPI chip select / I2C address
  • Precision audio clock generation for DACs and ADCs
  • Video timing reference clock synthesis
  • Telecom networking clock jitter cleaning
  • Consumer electronics clock distribution
  • Mixed-signal board clock management
Manufacturer Part Number Package Notes
Cirrus Logic CS2300CP-CZZ 10-MSOP Tube version
Cirrus Logic CS2000-CP 10-MSOP Similar fractional-N synthesizer
TI LMK61E2-SI QFN-24 Programmable clock generator
Silicon Labs SI5351A-B-GT QFN-20 I2C programmable clock, 3 outputs
Microchip MCP7940N-I/SN 8-SOIC I2C RTC with clock output
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In stock:
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All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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