Silicon Laboratories SI5324 User Manual

Video timing solutions, Any-rate frequency synthesis in a single ic, Application example: production video switcher

Video Timing Solutions

S O L U T I O N S G U I D E

ANY-RATE

FREQUENCY SYNTHESIS

IN A SINGLE IC

F E A T U R E S

• Generates any frequency from 2 kHz to

945 MHz and select frequencies to 1.4 GHz

from an input frequency of 2 kHz to 710 MHz

• Ultra-low jitter 0.58 ps RMS, 5 ps pk-pk at

3G-SDI (10 Hz to 20 MHz)

• Digitally programmable loop bandwidth with

fastlock (4 Hz to 525 Hz)

• Meets 3G-SDI (SMPTE 424M) for timing and

alignment jitter limits

• Genlock, free-run, and digital hold

• Hitless switching between input clocks with

phase build-out

• Manual or automatic (revertive, non-

revertive) input clock selection

• LOL, LOS and FOS alarm outputs

• Configurable signal format per output

(LVPECL, LVDS, CML, CMOS)

• I²C/SPI programmable

• Single supply 1.8, 2.5 or 3.3 V ±10%

with high PSNR

• Pb-free, RoHS compliant

A P P L I C A T I O N S

• Video or audio genlock and synchronization

• FPGA SDI SerDes recovered clock generation

• Triple rate 3G/HD/SD-SDI SerDes

• Video capture, conversion, editing and

distribution

• Digital audio or video recording and

playback devices

• Video server

• Video format converter

• Video switcher and frame synchronizer

F U L L Y I N T E G R A T E D ,

F R E Q U E N C Y F L E X I B L E G E N L O C K S O L U T I O N

D E S C R I P T I O N

Silicon Laboratories’ Si5324 Any-Rate Precision Clock is the industry’s lowest jitter, most

highly integrated video clock IC optimized for genlock applications. Based on Silicon Labs’

patented DSPLL® technology, the Si5324 has a fully integrated, digitally programmable

loop filter that supports loop bandwidths ranging from 4 Hz to 525 Hz as well as a low

phase noise internal VCO. By consuming less than 10% of the overall 3G-SDI jitter budget

required in next generation video applications, the Si5324 simplifies design and eases

system-level SDI jitter testing. In addition, the Si5324 provides any-rate frequency

flexibility by generating virtually any output frequency from 2 kHz to 1.4 GHz from any

input frequency ranging from 2 kHz to 710 MHz enabling a single IC design for multi-rate

video applications.

3G/SD/
HD-SDI

Cable

Equalizer

Cable

Equalizer

SDI

Deserializer

SDI

Deserializer

Video

Processor/

Buffer

Pclk, hvf

YCbCr

Pclk, hvf

YCbCr

Cable Driver

Sample Clock

HSYNC

Sync Input

Master Sync Generator

SDI

Reclocker

SDI

Reclocker

Genlock

SDI

Serializer

Si5338

Clock

Generator

HD (74.25 MHz)
HD (74.1758 MHz)
Audio (24.576 MHz)

Processor (66.66 MHz)

3G-SDI Reference Clock

Si5324

Any-Rate

Clock

Sync

Separator

Si554

VCXO

Si554

VCXO

Si590

3G/SD/
HD-SDI

Application Example: Production Video Switcher