Datasheet > 544GAAA000956BBGR

544GAAA000956BBGR

更新时间： 2024-11-29 09:53:39

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芯科 - SILICON		/
页数	文件大小	规格书
33页	1073K
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CMOS Output Clock Oscillator,

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™

Ultra Series Crystal Oscillator

Si544 Data Sheet

Ultra Low Jitter I2C Programmable XO (150 fs), 0.2 to 1500 MHz

The Si544 Ultra Series^™oscillator utilizes Silicon Laboratories’ advanced 4^th

generation DSPLL^®technology to provide an ultra-low jitter, low phase noise

clock at any output frequency. The device is user-programmed via simple

I2C commands to provide any frequency from 0.2 to 1500 MHz with <1 ppb

resolution and maintains exceptionally low jitter for both integer and fraction-

al frequencies across its operating range. The Si544 offers excellent reliabili-

ty and frequency stability as well as guaranteed aging performance. On-chip

power supply filtering provides industry-leading power supply noise rejection,

simplifying the task of generating low jitter clocks in noisy systems that use

switched-mode power supplies. The Si544 has a dramatically simplified sup-

ply chain that enables Silicon Labs to ship custom frequency samples 1-2

weeks after receipt of order. Unlike a traditional XO, where a different crystal

is required for each output frequency, the Si544 uses one simple crystal and

a DSPLL IC-based approach to provide the desired output frequency. The

Si544 is factory-configurable for a wide variety of user specifications, includ-

ing startup frequency, I2C address, output format, and OE pin location/

polarity. Specific configurations are factory-programmed at time of shipment,

eliminating the long lead times associated with custom oscillators.

KEY FEATURES

• I2C programmable to any frequency from 0.2 to

1500 MHz with < 1 ppb resolution

• Very low jitter: 150 fs Typ RMS (12 kHz – 20 MHz)

• Configure up to 4 pin-selectable startup frequencies

• I2C interface supports 100 kbps, 400 kbps, and 1

Mbps (Fast Mode Plus)

• Excellent PSRR and supply noise immunity: –80

dBc Typ

• 3.3 V, 2.5 V and 1.8 V V supply operation from

the same part number

• LVPECL, LVDS, CML, HCSL, CMOS, and Dual

CMOS output options

• 3.2x5, 5x7 mm package footprints

• Samples available with 1-2 week lead times

APPLICATIONS

Pin Assignments

SDA

• 100G/200G/400G OTN, coherent optics, PAM4

• 10G/40G/100G optical ethernet

OE/FS/NC

NC/OE/FS

GND

VDD

• 3G-SDI/12G-SDI/24G-SDI broadcast video

• Servers, switches, storage, search acceleration

• Test and measurement

CLK–

CLK+

• FPGA/ASIC clocking

SCL

(Top View)

Fixed

Frequency

Crystal

Frequency

Flexible

DSPLL

Pin #

Descriptions

Selectable via ordering option

Low

Noise

Driver

DCO

1, 2

Digital

Phase

Detector

Digital

Loop

Filter

OSC

Phase Error

Cancellation

OE = Output enable; FS = Frequency Select; NC = No connect

Flexible

Formats,

Phase Error

GND = Ground

1.8V – 3.3V

Operation

Fractional

Divider

NVM

Control

CLK+ = Clock output

Power Supply Regulation

CLK- = Complementary clock output. Not used for CMOS.

VDD = Power supply

OE, Frequency Select

(I2C and Pin Control)

Built-in Power Supply

Noise Rejection

SDA = I2C Serial Data

SCL = I2C Serial Clock

silabs.com | Building a more connected world.

Rev. 1.0

12 3 4 5 6 7...33

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与544GAAA000956BBGR相关器件

型号	品牌	获取价格	描述	数据表
544H4	ETC	获取价格	Infrared Emitting Diodes (IRED)
544L3	ETC	获取价格	Infrared Emitting Diodes (IRED)
544M-01	ICSI	获取价格	Clock Divider
544M01LF	ICSI	获取价格	Clock Divider
544M-01LF	IDT	获取价格	Clock Generator, 0.032768MHz, CMOS, PDSO8, 0.150 INCH, ROHS COMPLIANT, SOIC-8
544M-01LFT	IDT	获取价格	Clock Generator, 0.032768MHz, CMOS, PDSO8, 0.150 INCH, ROHS COMPLIANT, SOIC-8
544M-01T	IDT	获取价格	Clock Generator, 0.032768MHz, CMOS, PDSO8, 0.150 INCH, SOIC-8
544MI-01	ICSI	获取价格	Clock Divider
544MI-01	IDT	获取价格	Clock Generator, 0.032768MHz, CMOS, PDSO8, 0.150 INCH, SOIC-8
544MI01L	ICSI	获取价格	Clock Divider

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