FM Transmitter Dec06-01 Client Iowa State University – Senior Design Team Grant Blythe Luke Erichsen Tony Hunziker Jacob Sloat Advisors Dr. John W. Lamont Prof. Ralph E. Patterson III. Definitions. FCC: Federal Communication Commission LCD: liquid crystal display
Iowa State University – Senior Design
Grant Blythe Luke Erichsen
Tony Hunziker Jacob Sloat
Dr. John W. Lamont
Prof. Ralph E. Patterson III
The objective of this project is to design a FM transmitter that will:
The finished device will operate within a personal vehicle or a household room that could be exposed to:
This includes the different systems within the design, the parts currently considered to implement these systems, and preliminary prices of these components.
These inputs allow the user to adjust and fine tune the transmission frequency manually.
Power Supply Continued…
Microcontroller Design Requirements
Microcontroller Solution Continued…
Auto On/Off Implementation
After examining the available technologies, an integrated solution was found to provide the modulation, amplification, and transmission.
Composite Stereo Signal
Data Packet to BH1415F
Carrier Frequency Data
For Example: in the case of 99.7 MHz carrier frequency.
99.7 MHz / 100 kHz (fref) = 997 3E5 (HEX)
There are two outputs from the device.
LCD Display Requirements
LCD Display Solution
The LCD chosen was the VIM-404-DP-FC-S-HV LCD manufactured by Varitronix.
Rohm BH1415F Wireless Audio Link IC