Datasheet > SI5347

SI5347

更新时间： 2025-09-25 00:55:47

品牌	Logo	应用领域
芯科 - SILICON		/
页数	文件大小	规格书
55页	948K
描述
Dual/Quad DSPLL Any-Frequency, Any-Output Jitter Attenuators

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SI5347 数据手册

Si5347/46 Rev D Data Sheet

™

Dual/Quad DSPLL Any-Frequency, Any-Output Jitter

KEY FEATURES

Attenuators

• Four or two independent DSPLLs, any

output frequency from any input frequency

The Si5347 is a high-performance, jitter-attenuating clock multiplier which integrates

four any-frequency DSPLLs for applications that require maximum integration and inde-

pendent timing paths. The Si5346 is a dual DSPLL version in a smaller package. Each

DSPLL has access to any of the four inputs and can provide low jitter clocks on any of

• Ultra-low jitter of 95 fs rms

• Input frequency range:

• External Crystal: 25–54 MHz

the device outputs. Based on 4^thgeneration DSPLL technology, these devices provide

any-frequency conversion with typical jitter performance under 100 fs. Each DSPLL

supports independent free-run, holdover modes of operation, as well as automatic and

hitless input clock switching. The Si5347/46 is programmable via a serial interface with

in-circuit programmable non-volatile memory so that it always powers up in a known

configuration. Programming the Si5347/46 is easy with Silicon Labs' ClockBuilder Pro

software. Factory pre-programmed devices are also available.

• Differential: 8 kHz to 750 MHz

• LVCMOS: 8 kHz to 250 MHz

• Output frequency range:

• Differential: up to 712.5 MHz

• LVCMOS: up to 250 MHz

• Status Monitoring

• Hitless switching

• Si5347: 4 input, 8 output, 64-QFN 9×9 mm

• Si5346: 4 input, 4 output, 44-QFN 7×7 mm

Applications

• OTN Muxponders and Transponders

• 10/40/100G network line cards

• GbE/10 GbE/100 GbE Synchronous Ethernet (ITU-T G.8262)

• Carrier Ethernet switches

• Broadcast video

25-54 MHz XTAL

OSC

÷INT

OUT0

OUT1

OUT2

OUT3

÷INT

DSPLL A

DSPLL B

÷FRAC

IN0

IN1

IN2

IN3

4 Input

Clocks

OUT4

OUT5

OUT6

OUT7

÷FRAC

DSPLL C

DSPLL D

÷INT

Status Flags

I2C / SPI

Status Monitor

Control

NVM

silabs.com | Smart. Connected. Energy-friendly.

Rev. 1.0

12 3 4 5 6 7...55

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