541CAB000246BAGR datasheet, PDF

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541CAB000246BAGR: DescriptionStandard Clock Oscillators Dual Frequency XO; CategoryPassive components; File Size650KB，16 Pages; ManufacturerSilicon Laboratories

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541CAB000246BAGR Overview

Standard Clock Oscillators Dual Frequency XO

541CAB000246BAGR Parametric

Parameter Name	Attribute value
Product Attribute	Attribute Value
Manufacturer	Silicon Laboratories
Product Category	Standard Clock Oscillators

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Ultra Series

™

Crystal Oscillator

Si541 Data Sheet

Ultra Low Jitter Dual Any-Frequency XO (125 fs), 0.2 to 1500 MHz

The Si541 Ultra Series

™

oscillator utilizes Silicon Laboratories’ advanced 4

gen-

eration DSPLL

technology to provide an ultra-low jitter, low phase noise clock at

two selectable frequencies. The device is factory-programmed to provide any two

selectable frequencies from 0.2 to 1500 MHz with <1 ppb resolution and maintains

exceptionally low jitter for both integer and fractional frequencies across its operat-

ing range. The Si541 offers excellent reliability 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. Offered in indus-

try-standard 3.2x5 mm and 5x7 mm footprints, the Si541 has a dramatically simpli-

fied supply 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 re-

quired for each output frequency, the Si541 uses one simple crystal and a DSPLL

IC-based approach to provide the desired output frequencies. This process also

guarantees 100% electrical testing of every device. The Si541 is factory-configura-

ble for a wide variety of user specifications, including frequency, output format,

and OE pin location/polarity. Specific configurations are factory-programmed at

time of shipment, eliminating the long lead times associated with custom oscilla-

tors.

Pin Assignments

OE/FS

KEY FEATURES

• Available with any two selectable frequencies

from 0.2 MHz to 1500 MHz

• Very low jitter: 125 fs Typ RMS

(12 kHz – 20 MHz)

• Excellent PSRR and supply noise immunity:

–80 dBc Typ

• 10 ppm stability option (-40 to 85 C)

• 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

• 3.2×5, 5x7 mm package footprints

• Any custom frequency available with 1-2

week lead times

APPLICATIONS

• 100G/200G/400G OTN, coherent optics

• 10G/40G/100G optical ethernet

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

• Servers, switches, storage, NICs, search

acceleration

• Test and measurement

• Clock and data recovery

• FPGA/ASIC clocking

(Top View)

VDD

CLK-

CLK+

FS/OE

GND

Pin #

1, 2

Descriptions

Selectable via ordering option

OE = Output enable; FS = Frequency Select

OSC

Fixed

Frequency

Crystal

Frequency

Flexible

DSPLL

DCO

Low

Noise

Driver

GND = Ground

CLK+ = Clock output

CLK- = Complementary clock output. Not used

for CMOS.

VDD = Power supply

NVM

Control

Digital

Phase

Detector

Phase Error

Cancellation

Phase Error

Fractional

Divider

Digital

Loop

Filter

Flexible

Formats,

1.8V – 3.3V

Operation

Power Supply Regulation

OE, Frequency Select

(Pin Control)

Built-in Power Supply

Noise Rejection

silabs.com

| Building a more connected world.

Rev. 0.75

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Description	Standard Clock Oscillators Dual Frequency XO	Standard Clock Oscillators Dual Frequency XO	Standard Clock Oscillators Dual Frequency XO	Standard Clock Oscillators Dual Frequency XO	Standard Clock Oscillators Dual Frequency XO	Standard Clock Oscillators Dual Frequency XO	Standard Clock Oscillators Dual Frequency XO	Standard Clock Oscillators Dual Frequency XO	Standard Clock Oscillators DUAL XO 0.125ps RMS JTR NCNR	Standard Clock Oscillators Dual Frequency XO
Product Attribute	Attribute Value	Attribute Value	Attribute Value	Attribute Value	Attribute Value	Attribute Value	Attribute Value	Attribute Value	Attribute Value	Attribute Value
Manufacturer	Silicon Laboratories	Silicon Laboratories	Silicon Laboratories	Silicon Laboratories	Silicon Laboratories	Silicon Laboratories	Silicon Laboratories	Silicon Laboratories	Silicon Laboratories	Silicon Laboratories
Product Category	Standard Clock Oscillators	Standard Clock Oscillators	Standard Clock Oscillators	Standard Clock Oscillators	Standard Clock Oscillators	Standard Clock Oscillators	Standard Clock Oscillators	Standard Clock Oscillators	Standard Clock Oscillators	Standard Clock Oscillators

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