Control circuit for Nokia TV tuner 5827 
From Pollin Electronic there was a complete TV tuner available (Sonderliste Nr. 1/2000, page 83). The tuner is programmable via I²C-Bus and provides a FBAS signal at its output. There is also the homepage of Georg Acher containing information about this tuner. I have developed a control circuit for this tuner which uses the AT89C2051 from Atmel. Operating is done via three keys: key C/P switches between the program number and the channel number, with keys + and - you can switch up or down. The adjusted channels are stored in an EEPROM. The program or channel number is displayed on a four digit LC- or LED-Display which is controlled via I²C-Bus.
The schematic and the software can be downloaded here:
Project files for hardware and software in ZIP format:TV-Tuner V1.0
For the hardware the freeware version of Eagle 3.55 is required. It is available for free from CadSoft.
Schematics in GIF format:Schematic of TV tuner
Schematic of LCD display for TV tuner
Schematic of LED display for TV tuner
Programmed microcontroller:If you are interested in a programmed microcontroller, please send an email including the project name.
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