WikiSysop: Created page with "This page describes the Phase Locked Loop (PLL) for the rev0VTx video transmitter. ==Summary== Schematic for the rev0VTx PLL. File..."

2015-08-08T02:05:19Z

Created page with "This page describes the Phase Locked Loop (PLL) for the rev0VTx video transmitter. ==Summary== thumb|right|Schematic for the rev0VTx PLL. File..."

New page

This page describes the Phase Locked Loop (PLL) for the rev0VTx video transmitter.

==Summary==
[[File:Rev0VTx_PLL_Sch.png|thumb|right|Schematic for the rev0VTx PLL.]]
[[File:Rev0VTx_PLL_Brd.png|thumb|right|Board for the rev0VTx PLL.]]

The PLL is based around the [http://www.digikey.com/product-detail/en/MB15E07SLPFV1-G-BND-6E1/865-1001-ND/2039368 Fujitsu MB15E07SL 2.5GHz PLL IC], and runs from a single 3.3V supply. The design is based on the HobbyKing 100mW 900 MHz video transmitter, described here: [[900MHz_Video_System#Reverse_Engineering|Reverse Engineering the 900MHz Video System]] The modified design used here uses a 16 MHz crystal for the reference frequency and is controlled by an on-board ATtiny13A microcontroller. A potentiometer can be read by the microcontroller which can be used to control the VCO frequency, or a single digital pin can be controlled via servo pulse or serial communication (to be determined) to control the frequency. The gerbers, Eagle schematic and board file can be found here: http://www.rev0proto.com/files/rev0VTx_PLL.zip

==Testing==

==PCB/Construction Photos==
<gallery perrow=3 widths=240px heights=120px>
File:rev0VTx_PLL_PCB_Bottom.jpg|Bottom of unpopulated PCB
File:rev0VTx_PLL_PCB_Top.jpg|Top of unpopulated PCB
File:rev0VTx_PLL_Top.jpg|Populated PCB
</gallery>

Rev0VTx PLL - Revision history

WikiSysop: Created page with "This page describes the Phase Locked Loop (PLL) for the rev0VTx video transmitter. ==Summary== Schematic for the rev0VTx PLL. File..."