514KCB000942BAGR datasheet, PDF

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514KCB000942BAGR: DescriptionProgrammable Oscillators Any Frequency I2C Programmable XO; CategoryPassive components; File Size760KB，38 Pages; ManufacturerSilicon Laboratories

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514KCB000942BAGR Overview

Programmable Oscillators Any Frequency I2C Programmable XO

514KCB000942BAGR Parametric

Parameter Name	Attribute value
Product Attribute	Attribute Value
Manufacturer	Silicon Laboratories
Product Category	Programmable Oscillators
Frequency	0.1 MHz to 170 MHz
Frequency Stability	30 PPM
Load Capacitance	15 pF
Operating Supply Voltage	1.8 V
Supply Voltage - Min	1.71 V
Supply Voltage - Max	1.89 V
Output Format	CMOS
Product	XO
Termination Style	SMD/SMT
Package / Case	3.2 mm x 5 mm
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C
Length	5 mm
Width	3.2 mm
Height	1.17 mm
Packaging	Box
Current Rating	21 mA
Type	I2C Programmable
Duty Cycle - Max	52 %
Mounting Style	SMD/SMT

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Si514

N Y

-F

REQUENCY

C P

R OG R A MM A B L E

X O ( 1 0 0 k H

Features



250 M H

)

Programmable to any frequency



from 100 kHz to 250 MHz

0.026 ppb frequency tuning



resolution



Glitch suppression on OE, power

on and frequency transitions



Low jitter operation

2- to 4-week lead times



Total stability includes 10-year

aging



Comprehensive production test

coverage includes crystal ESR and

DLD

On-chip LDO for power supply

noise filtering

3.3, 2.5, or 1.8 V operation

Differential (LVPECL, LVDS,

HCSL) or CMOS output options

Optional integrated 1:2 CMOS

fanout buffer

Industry standard 5x7, 3.2x5, and

2.5x3.2 mm packages

–40 to 85

C operation

Si5602

5x7mm, 3.2x5mm

2.5x3.2mm

Ordering Information:

See page 28.

Pin Assignments:

See page 27.

Applications

All-digital PLLs



DAC+ VCXO replacement



SONET/SDH/OTN



3G-SDI/HD-SDI/SDI



Datacom



Industrial automation



FPGA/ASIC clock generation



FPGA synchronization



SDA

SCL

GND

Description

The Si514 user-programmable I

C XO utilizes Silicon Laboratories' advanced PLL

technology to provide any frequency from 100 kHz to 250 MHz with programming

resolution of 0.026 parts per billion. The Si514 uses a single integrated crystal and

Silicon Labs’ proprietary DSPLL synthesizer to generate any frequency across this

range using simple I

C commands. Ultra-fine tuning resolution replaces DACs and

VCXOs with an all-digital PLL solution that improves performance where

synchronization is necessary or in free-running reference clock applications. This

solution provides superior supply noise rejection, simplifying low jitter clock

generation in noisy environments. Crystal ESR and DLD are individually

production-tested to guarantee performance and enhance reliability.

The Si514 is factory-configurable for a wide variety of user specifications, including

startup frequency, I

C address, supply voltage, output format, and stability. Specific

configurations are factory-programmed at time of shipment, eliminating long lead

times and non-recurring engineering charges associated with custom frequency

oscillators.

CLK–

CLK+

Functional Block Diagram

Rev. 1.1 12/17

Si514

Si514

ABLE O F

ONTENTS

Section

Page

1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

2. Solder Reflow and Rework Requirements for 2.5x3.2 mm Packages . . . . . . . . . . . . . . 11

3. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.1. Programming a New Output Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.2. Programming a Small Frequency Change (sub ±1000 ppm) . . . . . . . . . . . . . . . . . . 13

3.3. Programming a Large Frequency Change (> ±1000 ppm) . . . . . . . . . . . . . . . . . . . . 14

4. All-Digital PLL Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5. User Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

5.1. Register Map . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19

5.2. Register Detailed Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

5.3. I2C Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6. Pin Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

6.1. Dual CMOS (1:2 Fanout Buffer) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

7. Ordering Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

8. Package Outline Diagram: 5 x 7 mm, 6-pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

9. PCB Land Pattern: 5 x 7 mm, 6-pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30

10. Package Outline Diagram: 3.2 x 5.0 mm, 6-pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31

11. PCB Land Pattern: 3.2 x 5.0 mm, 6-pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

12. Package Outline Diagram: 2.5 x 3.2 mm, 6-pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33

13. PCB Land Pattern: 2.5 x 3.2 mm, 6-pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

14. Top Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36

14.1. Si514 Top Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

14.2. Top Marking Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Document Change List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37

Rev. 1.1

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