547DAA002435BAGR datasheet, PDF

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547DAA002435BAGR: DescriptionStandard Clock Oscillators Quad Frequency XO; CategoryPassive components; File Size838KB，16 Pages; ManufacturerSilicon Laboratories

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547DAA002435BAGR Overview

Standard Clock Oscillators Quad Frequency XO

547DAA002435BAGR Parametric

Parameter Name	Attribute value
Product Attribute	Attribute Value
Manufacturer	Silicon Laboratories
Product Category	Standard Clock Oscillators
Frequency	0.2 MHz to 1500 MHz
Frequency Stability	50 PPM
Load Capacitance	5 pF
Operating Supply Voltage	1.8 V, 2.5 V, 3.3 V
Supply Voltage - Min	1.71 V
Supply Voltage - Max	3.465 V
Output Format	CML
Termination Style	SMD/SMT
Package / Case	5 mm x 3.2 mm
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C
Length	5 mm
Width	3.2 mm
Height	1.17 mm
Current Rating	83 mA
Type	Crystal Oscillator
Duty Cycle - Max	55 %

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Ultra Series

™

Crystal Oscillator

Si547 Data Sheet

Ultra Low Jitter Quad Any-Frequency XO (80 fs), 0.2 to 1500

MHz

The Si547 Ultra Series

™

oscillator utilizes Silicon Laboratories’ advanced 4

gener-

ation DSPLL

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

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

lectable frequencies from 0.2 to 1500 MHz with <1 ppb resolution and maintains ex-

ceptionally low jitter for both integer and fractional frequencies across its operating

range. The Si547 offers excellent reliability and frequency stability as well as guar-

anteed 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 industry-standard

3.2x5 mm and 5x7 mm footprints, the Si547 has a dramatically simplified 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 required for each

output frequency, the Si547 uses one simple crystal and a DSPLL IC-based ap-

proach to provide the desired output frequencies. This process also guarantees

100% electrical testing of every device. The Si547 is factory-configurable for a wide

variety of user specifications, including frequency, output format, and OE pin loca-

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

eliminating the long lead times associated with custom oscillators.

Pin Assignments

FS1

OE/NC

KEY FEATURES

• Available with any four selectable

frequencies from 200 kHz to 1500 MHz

• Ultra low jitter: 80 fs Typ RMS

(12 kHz – 20 MHz)

• Excellent PSRR and supply noise

immunity: –80 dBc Typ

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

• 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

• Samples available with 1-2 week lead times

APPLICATIONS

• 100G/200G/400G OTN, coherent optics

• 10G/25G/40G/100G 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

VDD

CLK-

CLK+

NC/OE

GND

FS0

(Top View)

Pin #

1, 2

Descriptions

Selectable via ordering option

OE = Output enable; NC = No Connect

GND = Ground

CLK+ = Clock output

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

NVM

OSC

Fixed

Frequency

Crystal

Frequency

Flexible

DSPLL

DCO

Low

Noise

Driver

Digital

Phase

Detector

Phase Error

Cancellation

Phase Error

Fractional

Divider

Digital

Loop

Filter

Flexible

Formats,

1.8V – 3.3V

Operation

VDD = Power supply

FS1 = Frequency Select 1

FS0 = Frequency Select 0

Control

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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