Datasheet > 544AAAA000121BBGR

544AAAA000121BBGR

更新时间： 2023-02-26 15:03:44

品牌	Logo	应用领域
芯科 - SILICON		/
页数	文件大小	规格书
33页	1073K
描述
LVPECL 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544AAAA000121BBGR相关器件

型号	品牌	获取价格	描述	数据表
544AAJC001967BBGR	SILICON	获取价格	LVPECL Output Clock Oscillator,
544ABAC001975BBG	SILICON	获取价格	LVPECL Output Clock Oscillator,
544ABAC001975BBGR	SILICON	获取价格	LVPECL Output Clock Oscillator,
544ACAA002065BBG	SILICON	获取价格	LVPECL Output Clock Oscillator,
544BAAC001808BBG	SILICON	获取价格	LVDS Output Clock Oscillator,
544BACC001530ABG	SILICON	获取价格	LVDS Output Clock Oscillator,
544DABB001896BBGR	SILICON	获取价格	CML Output Clock Oscillator,
544E	HITTITE	获取价格	GaAs MMIC T/R SWITCH, DC - 4 GHz
544EAEB001945BBGR	SILICON	获取价格	HCSL Output Clock Oscillator,
544GAAA000956BBGR	SILICON	获取价格	CMOS Output Clock Oscillator,

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