AN1833 Freescale Semiconductor / Motorola, AN1833 Datasheet - Page 12
![no-image](/images/no-image-200.jpg)
AN1833
Manufacturer Part Number
AN1833
Description
A Low-Power Wireless Remote Control Transmitter and Receiver
Manufacturer
Freescale Semiconductor / Motorola
Datasheet
1.AN1833.pdf
(44 pages)
- Current page: 12 of 44
- Download datasheet (386Kb)
Application Note
12
The oscillator tuning range is controlled by C resulting from the voltage
variable CV. The following equation by similarity to equation (2) above
shows this relationship.
The oscillator operating frequency may be estimated by the next
equation, which is derived by substituting equation (2) for C in equation
(1).
where C1 = C2 = 18 pF
For an oscillator center frequency of 394.7 MHz (high side LO is used),
the value of L is calculated to be 11.5 nH.
For a more in-depth study, Randall Rhea discusses several oscillator
circuits in his book on oscillator design [7].
Solving (4) for L, results in:
3.
4. f = (0.159) / [
5. L = (0.159)
Freescale Semiconductor, Inc.
For More Information On This Product,
CS = 4.7 pF
CV = 5 pF (at 2.2 Vdc)
CB = 11 pF
C = (CS + CV)(CB) / (CB + CS + CV)
[ (CS + CV )(CB) / (CB + CS + CV) ] * [L]
[ (CS + CV)(CB) / (CB + CS + CV) ] * f
Go to: www.freescale.com
2
/
{
{
[ [(C1)(C2)] / [(C1 + C2)] +
[(C1)(C2)] / [(C1 + C2)] +
2
}
}
1/2]
MOTOROLA
AN1833
Related parts for AN1833
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![AN177](/images/no-image3.png)
Part Number:
Description:
An Overview og the Phase Locked Loop
Manufacturer:
Philips
Datasheet:
![AN1268](/images/manufacturer_photos/0/6/637/stmicroelectronics_tmb.jpg)
Part Number:
Description:
AN OVERVIEW OF THE LPC FLASH INTERFACE
Manufacturer:
STMicroelectronics
![AN1315](/images/no-image3.png)
Part Number:
Description:
An Evaluation System Interfacing the MPX2000 Series Pressure Sensors to a Microprocessor
Manufacturer:
Motorola / Freescale Semiconductor
![AN1998](/images/no-image3.png)
Part Number:
Description:
An FM-IF system for DECT and other high speed GFSK applications
Manufacturer:
Philips Semiconductors / NXP Semiconductors
![AN2124](/images/no-image3.png)
Part Number:
Description:
An 8 x 8 Discrete Cosine Transform on the StarCore SC140/SC1400 Cores
Manufacturer:
Freescale Semiconductor / Motorola
![AN2428](/images/no-image3.png)
Part Number:
Description:
An Overview of the HCS12 ATD Module
Manufacturer:
Freescale Semiconductor / Motorola
![AN2708](/images/no-image3.png)
Part Number:
Description:
An Introduction to the External Bus Interface on the HCS12X
Manufacturer:
Freescale Semiconductor / Motorola
![AN2783](/images/no-image3.png)
Part Number:
Description:
An RF Data Link Using Tango3 and Romeo2 RF Modules
Manufacturer:
Freescale Semiconductor / Motorola
![MC33394DH](/images/manufacturer_photos/0/2/262/freescale_semiconductor_tmb.jpg)
Part Number:
Description:
IC POWER SUPPLY MULT-OUT 44-HSOP
Manufacturer:
Freescale Semiconductor
Datasheet:
![MC33394DWB](/images/manufacturer_photos/0/2/262/freescale_semiconductor_tmb.jpg)
Part Number:
Description:
IC POWER SUPPLY MULT-OUT 54-SOIC
Manufacturer:
Freescale Semiconductor
Datasheet:
![MSC7110](/images/no-image3.png)
Part Number:
Description:
Low-Cost 16-Bit DSP with DDR Controller
Manufacturer:
Freescale Semiconductor / Motorola
![MSC7116](/images/no-image3.png)
Part Number:
Description:
Low-Cost 16-bit DSP with DDR Controller and 10/100 Mbps Ethernet MAC
Manufacturer:
Freescale Semiconductor / Motorola
Datasheet:
![MSC7119](/images/no-image3.png)
Part Number:
Description:
Low-Cost 16-bit DSP with DDR Controller and 10/100 Mbps Ethernet MAC
Manufacturer:
Freescale Semiconductor / Motorola
Datasheet:
![MSC7118](/images/no-image3.png)
Part Number:
Description:
Low-Cost 16-bit DSP with DDR Controller
Manufacturer:
Freescale Semiconductor / Motorola
Datasheet:
![MSC8101](/images/no-image3.png)
Part Number:
Description:
Functional Pin Difference Between the MSC8101 and MPC8260 Communications Processor Modules
Manufacturer:
Freescale Semiconductor / Motorola