AD9573 PCI-Express Clock Generator IC, PLL Core, Dividers, Two Outputs

The AD9573 provides a highly integrated, dual output clock generator function including an on-chip PLL core that is optimized for PCI-e applications. The integer-N PLL design is based on the Analog Devices, Inc., proven portfolio of high performance, low jitter frequency synthesizers to maximize line card performance. Other applications with demanding phase noise and jitter requirements also benefit from this part.

The PLL section consists of a low noise phase frequency detector (PFD), a precision charge pump, a low phase noise voltage controlled oscillator (VCO), and a preprogrammed feedback divider and output divider.

By connecting an external 25 MHz crystal, output frequencies of 100 MHz and 33.33 MHz can be locked to the input reference. The output divider and feedback divider ratios are prepro-grammed for the required output rates. No external loop filter components are required, thus conserving valuable design time and board space.

The AD9573 is available in a 16-lead 4.4 mm × 5.0 mm TSSOP and can be operated from a single 3.3 V supply. The temperature range is −40°C to +85°C.

Applications

Line cards, switches, and routers
CPU/PCIe applications
Low jitter, low phase noise clock generation

Features and Benefits

Fully integrated VCO/PLL core
0.54 ps rms jitter from 12 kHz to 20 MHz
Input crystal frequency of 25 MHz

Preset divide ratios for 100 MHz, 33.33 MHz

LVDS/LVCMOS output format

Integrated loop filter

Space saving 4.4 mm × 5.0 mm TSSOP

0.235 W power dissipation

3.3 V operation

Clock & Timing

Clock Generation & Distribution

RF & Microwave

Timing ICs & Clocks

Data Sheets

Document	note
AD9573: PCI-Express Clock Generator IC, PLL Core, Dividers, Two Outputs Data Sheet (Rev. 0)	PDF 290 kB

Frequently Asked Questions

Document	note

Order Information

Part Number	Package	Packing Qty	Temp Range	Price 100-499	Price 1000+	RoHS
AD9573ARUZ Production	16 ld TSSOP	OTH 96	-40 to 85C	4	3.4	Y
AD9573ARUZ-RL7 Production	16 ld TSSOP	REEL 1000	-40 to 85C	4	3.4	Y

AD9573: PCI-Express Clock Generator IC, PLL Core, Dividers, Two Outputs Data Sheet (Rev. 0) ad9573