SAW PLL Simulator Instructions

Application Note
Integrated
Circuit
Systems, Inc.
M000-AN-002.PLLSIMREADME
SAW PLL Simulator Instructions
M900, M1000, M2000 Product Lines
INSTALLATION
Perform the following steps:
1. Register for the download at
http://www.icst.com/FeedBack/cmbu/m2000.asp
2. Download the PLL_Sim.zip distribution file.
3. Extract the PLL Simulator files from the .zip file:
4. Download the LabVIEW Run-time Engine
Version 6.1 for Windows 2000/95/98/ME/NT/XP
from National Instruments:
ftp://ftp.ni.com/support/labview/runtime/
windows/6.1/LVRunTimeEng.exe
(Save the 14 MB file to your computer.)
5. Run LVRunTimEng.exe to install LabVIEW. You can
accept the default directory offered by the wizard.
6. Run M2000PllSimulation.exe to start the PLL
Simulator.
M2000PllSimulation.exe
M000-AN-002.PLLsimReadMe.pdf
DEFINITION OF TERMS
Refer to Figure 1 and Table 1 for the definition of terms
as used to input data to the simulator.
R loop
Note: The parameters in Table 1 are also listed in
the product data sheets under “AC Characteristics”.
C loop
R pos t
C pos t
C post
R loop
R pos t
C loo p
R in
R
D ivide r
R ef
VCSO
P D ivid er
= 1
O u tpu t
R in
V C S O frequenc y,B W
and K vco
M
D ivide r
Figure 1: Simulated PLL Block Diagram
Table 1: Device-Specific Input Data for Commonly-Used Devices
Device
M901/902/906/908-01
M906/908/926/928-02
M1020/21-xy
M1020/21-xy in NBW mode
M1025/26-xy
M1025/26-xy in NBW mode
M2004-xy
M2004-xy in NBW mode
M2006-xy
M2006-xy in NBW mode
M2020/21-xy
M2020/2-xy in NBW mode
M2025/26-xy
M2025/26-xy in NBW mode
M2060/61/62-xy
M2060/61/62-xy in NBW mode
M2065/66/67-xy
M2065/66/67-xy in NBW mode
Rin
16 kΩ
16 kΩ
100 kΩ
2100 kΩ
100 kΩ
2100 kΩ
16 kΩ
2016 kΩ
50 kΩ
2050 kΩ
100 kΩ
2100 kΩ
100 kΩ
2100 kΩ
100 kΩ
2100 kΩ
100 kΩ
2100 kΩ
Kvco
800kHz/V
800kHz/V
200kHz/V
200kHz/V
200kHz/V
200kHz/V
800kHz/V
800kHz/V
800kHz/V
800kHz/V
800kHz/V
800kHz/V
800kHz/V
800kHz/V
800kHz/V
800kHz/V
800kHz/V
800kHz/V
VCSO BW
0.7 MHz
0.7 MHz
0.7 MHz
0.7 MHz
0.7 MHz
0.7 MHz
0.7 MHz
0.7 MHz
0.7 MHz
0.7 MHz
0.7 MHz
0.7 MHz
0.7 MHz
0.7 MHz
0.7 MHz
0.7 MHz
0.7 MHz
0.7 MHz
Device-Specific Input Data for Commonly-Used Devices
M000-AN-002.PLLsimReadme AppNote Rev 1.5
Integrated Circuit Systems, Inc.
●
Communications Modules
Revised 13Apr2004
●
w w w. i c s t . c o m
●
tel (508) 852-5400
M000-AN-002.PLLSIMREADME
Integrated
Circuit
Systems, Inc.
SAW PLL SIMULATOR INSTRUCTIONS
M900, M1000, M2000 PRODUCT LINES
Application Note
NOTES FOR SELECTING EXTERNAL LOOP COMPONENTS
3. Some devices, such as the M2006-01, M2004-01
and M906-02, do not have the R divider. Set R to 1
for these cases. Some devices, such has the
M901-01, have a P divider at the output. Consider
P=1 for the purpose of the simulation.
4. Some M1000 and M2000 series devices have Mfec
and Mfin dividers. The calculated total M value
should match Mfec x Mfin. The M2006-03 contains
two dividers, M1 and M2; the calculated total
M value should match M1 x M2.
1. Setting the VCSO Frequency and Reference
Frequency automatically calculates the total
M value, which is used for the loop characteristic
calculations. Make sure that M is an integer when
component selection is complete.
2. Set Rpost in the range of 10-200 kohm, and
adjust Cpost to set the Post LPF bandwidth to
approximately 5-10 x the closed loop bandwidth.
It is best to keep Cpost above 400 pF.
CONVENIENCE FEATURES
The Data Input Pane has three convenient features:
1. Sliders to change the Rloop, Cloop, Rpost and Cpost
values continuously.
These are operated as shown in Figure 2.
Figure 2: Slider Example
2. All of the major tic scale markings are editable.
This feature is very helpful when fine tuning
component values Figure 3: Scale Maker in Edit Mode.
Figure 3: Scale Maker in Edit Mode
M000-AN-002.PLLsimReadme AppNote Rev 1.5
Integrated Circuit Systems, Inc.
●
2 of 4
Communications Modules
Revised 13Apr2004
●
w w w. i c s t . c o m
●
tel (508) 852-5400
M000-AN-002.PLLSIMREADME
Integrated
Circuit
Systems, Inc.
SAW PLL SIMULATOR INSTRUCTIONS
M900, M1000, M2000 PRODUCT LINES
Application Note
CONVENIENCE FEATURES (CONTINUED)
3. Ability to zoom in or out of the plot pane.
This is accomplished by adjusting the plot
parameters. The cells also behave identically to those
in the data input pane, with the exception of the
Frequency Range and Start Frequency cells.
The Frequency Range and Start Frequency cells can
be left-clicked to pop up quick decade selections, as
shown in Figure 4: Plot Parameter Edit Option.
Figure 4: Plot Parameter Edit Option
M000-AN-002.PLLsimReadme AppNote Rev 1.5
Integrated Circuit Systems, Inc.
●
3 of 4
Communications Modules
Revised 13Apr2004
●
w w w. i c s t . c o m
●
tel (508) 852-5400
M000-AN-002.PLLSIMREADME
Integrated
Circuit
Systems, Inc.
SAW PLL SIMULATOR INSTRUCTIONS
M900, M1000, M2000 PRODUCT LINES
Application Note
M000-AN-002.PLLsimReadme AppNote Rev 1.5
Integrated Circuit Systems, Inc.
●
4 of 4
Communications Modules
Revised 13Apr2004
●
w w w. i c s t . c o m
●
tel (508) 852-5400