For customers using AD951x series, AD952x series Clock Cleaner Applications from Analog Devices
(AD951xSeries: AD9510, AD9512, AD9513, AD9514, AD9515, AD9516-0,1,2,3,4, AD9517-0,1,2,3,4)
(AD952xSeries: AD9520-0,1,2,3,4,5, AD9522-0,1,2,3,4,5, AD9523, AD9523-1, AD9524, AD9525, AD9528)
Customers can find the suitable VCXO products and features ADI clock cleaners require.
Clock Solution for ClockCleaner AD951x, AD952x series from Analog Devices
VCXO | Features | |
---|---|---|
Output | CMOS |
Lower frequency (1M~170MHz)Easy connection with IC circuitry, but vulnerable from external noise.Larger high frequency harmonic component than LV-PECL. |
LV-PECL | Higher frequency (50M~800MHz) Stable data transfer is available with impedance matching and complicated circuitry to IC input port. Smaller high frequency harmonic component than CMOS Epson VCXO has HFF(High Frequency Fundamental) and it makes low noise design with fundamental oscillation. Epson recommends LV-PECL for low noise design. |
|
APR Absolute Pull Range |
Lower APR(±50ppm)Lower noise, narrow frequency pull-ability. | |
Higher APR(±100ppm)Higher noise, wide frequency pull-ability Customer can choose APR for system design. | ||
Customer can choose APR for system design. |
Output | Size [mm] |
Frequency [ MHz ] |
Products |
---|---|---|---|
CMOS | 2.5x2.0x0.7t | 30.72 61.44 |
VG2520CAN |
5.0x3.2x1.2t | 1〜81 | VG-4231CB | |
7.0x5.0x1.4t | 1〜60 60〜80 80〜170 |
VG-4231CA, VG-4232CA, VG-4501CA, VG-4502CA |
|
LV-PECL | 5.0x3.2x1.3t | 100〜500 | VG-4513CB |
7.0x5.0x1.6t | VG-4513CA |
Simulation libraries
ADIsimcLK is a clock cleaner simulator supported by Analog Devices ADI. ADIsimCLK can simulate ADI clock cleaners’ PLL clock features with combination of Epson VCXOs. Epson provides VCXOs'simulation libraries for ADIsimCLK.
Product | Output | Frequncy |
Absolute pull range |
---|---|---|---|
VG-4513CA/CB | LV-PECL | 100 ~ 491MHz | ±50ppm, ±100ppm |
VG-4231CE/CB | CMOS | 25 ~ 61.44MHz | ±100ppm |
ADIsimCLK is registered Trade Mark of Analog Devices, Inc.
Customers can refer to Analog Devices about ADIsimCLK.
ADIsimCLK Down load
http://www.analog.com/en/design-center/advanced-selection-and-design-tools/interactive-design-tools/adisimclk.html
(Link to Analog Devices,Ink. HP)
< Quick start for ADIsimCL K>
-
Down load Epson Library from this WEB site to your PC.
library data:(epson1_01.zip:11kb)
- Install Epson Library to your PC correct drive.
The directory for install Epson Library file
C:…\ADIsimCLKVer1.6\LibBackup\VCO\epson.lib
- Start ADIsimCLK and select Epson VCXO Library for simulation.
Please follow instructions below when ADIsimCLK application software fails to recognize Epson.lib.
- Stop ADIsimCLK application software.
- Erase the files Epson.lib, Epson.sfm and other files have name of Epson from the directory.
- Install Epson. Lib into the directory again.
- Take the customer’s ownership of the file (Epson.lib).
Refer to (Link to Microsoft page) http://technet.microsoft.com/en-us/library/cc753659. - Start ADIsimCLK application software again.
Simulation and measurement sample
(Analog Devices AD9523-1 and Epson VG-4513)
ADIsimCLK Simulation result and comparison with measured data.
Clock Cleaner : AD9523-1
VCXO:VG-4513CA 122.8MHz,245.76MHz
lcp | 9.0uA | ||
---|---|---|---|
Cpole1 | 1500pF | internal | fixed |
Rzero | 135kΩ | internal | |
Cext | 0.33uF | external | default |
Rpole2 | 165kΩ | internal | fixed |
Cpole2 | 337pF | internal | fixed |
VCXO frequency | VG-4513CA 122MHz | VG-4513CA 245MHz |
---|---|---|
KV | 53.2Hz | 70.5Hz |
LOOP BW | 135kΩ | internal |
Phase Margin | 80.4degrees | 79.5degrees |
Zero | 3.57Hz | 3.57Hz |
Pole | 615Hz | 615Hz |
Last Pole | 3.68kHz | 3.68kHz |
VCXO | Simulation | Measured value |
---|---|---|
VG-4513CA 122.88MHz LVPECL | 144fsec | 146.7fsec |