SDP 2011 Team Goeckel CDR Robert Gibb Dominic Emilian Seth Berggren Patrick Coletti

SDP 2011 Team Goeckel CDR Current digital cable systems: Long, clumsy coax cable laid out throughout walls of the house are unsightly and difficult to route around your house Broken coax can be difficult to replace Splitting of coax cable requires additional wires Awkward jack placement One receiver box per TV Motivation

SDP 2011 Team Goeckel CDR Requirements Specification Cost: Under $200 (mass produced) Size: Transmitter box should be 8x6x2 or smaller. Receiver will be small enough to plug right into back of TV. Easy : Omni-directionally transition, simple setup, easy to use interface Multiplicity: transmit separate channels to up to four different TVs. Security: Password protected user accounts on server, parental control Legality: YES, OUI, CI Ability: work at distances up to 150 feet.

SDP 2011 Team Goeckel CDR System Overview: User Standpoint

SDP 2011 Team Goeckel CDR System Overview: Hardware Standpoint To Router

SDP 2011 Team Goeckel CDR Web Server Design  Server hosted on EVK1100  Web page written in HTML and JavaScript  Accessed via computer or mobile device  Interfaced with microcontroller using C code Web Server

SDP 2011 Team Goeckel CDR SPI Design: Physical Implementation On Transmitter

SDP 2011 Team Goeckel CDR SPI Design: Programming RFICs controlled by programming registers -ADRF6806, MAX2831 Each RFIC contains 8 registers Example of register values for ADRF6806 Atmel provides SPI libraries Web Server Function Call on SPI_Controller() channelToFrequencyOffset() frequencyOffsetToByte() SPI_SendToSlave() SPI_Drivers To Slave

* SDP 2011 Team Goeckel CDR T RANSMITTER I MPLEMENTATION : I NTERFACING DATA, CLK, CS; one chip select high per programming cycle

SDP 2011 Team Goeckel CDR T RANSMITTER

SDP 2011 Team Goeckel CDR Transmitter: Block Diagram MHz 56MHz -112MHz 112MHz 2400+TV[0:3]offset TV[0:3]offset RF Cable Baseband I/Q RF Antenna Out MAR-8A+

* SDP 2011 Team Goeckel CDR T RANSMITTER I MPLEMENTATION : A MPLIFIERS Max2831 recommends 100mVrms = 0dbm at input Input to ADRF: -55dbm; Need~50-60dB of gain Mini-Circuits DC-1GHz, 25dB MAR-8A+, 12dB MAR-3+

* SDP 2011 Team Goeckel CDR T RANSMITTER I MPLEMENTATION : L EVELING N ETWORK MAX2831 accepts voltage swings from.98V-1.33V; 1.2V ideal ADRF6806: 1.55V-1.75V; centered on 1.65V Resistors to GND = 120ohm 120 OHM TO GND

* SDP 2011 Team Goeckel CDR T RANSMITTER I MPLEMENTATION : P OWER 250mA per IC x 8 IC’s = 2A 12V supplies Amplifiers Voltage Regulators: 3.3V, 5V, 2.8V

* SDP 2011 Team Goeckel CDR T RANSMITTER : S CHEMATIC

* SDP 2011 Team Goeckel CDR T RANSMITTER : PCB

SDP 2011 Team Goeckel CDR R ECEIVER

SDP 2011 Team Goeckel CDR Receiver: Block Diagram MHz 56MHz RF Cable 2400+TV[0:3]offset TV[0:3]offset RF Antenna In GHz LNA VAVA VAVA MAX MHz ∑ ADL Base Band

SDP 2011 Team Goeckel CDR Receiver Schematic Input to Balun Output to TV SPI In Phase Quadrature PLL / Crystal Oscillator Circuitry 56MHz Crystal

SDP 2011 Team Goeckel CDR Receiver Challenges  Common-Mode voltage differences 1.2V (MAX2831) to 500mV (ADL5386)  Variable Voltage Settings Adjustments to LNA and VA’s on MAX2831 Adjustments to VVA on ADL5386

* SDP 2011 Team Goeckel CDR PCB D ESIGN : R ECEIVER

SDP 2011 Team Goeckel CDR H OW MUCH WOULD IT COST ?

* SDP 2011 Team Goeckel CDR B UDGET Estimated Cost: $ surface mount components on transmitter PCB 50 components on microcontroller PCB, $30 for parts 200 surface mount components on receiver PCB 2- 4 layers boards, 1 2 layer board Components-$100 QTY.BoardPrice Unique PartsSMT Mounts Price For One 50Transmitter$5, $ Receiver$3, $ uController$2, $46.30 $234.60

* SDP 2011 Team Goeckel CDR P ROJECT D ELIVER - ABLES SPI/Web Interface working with each other; Channel Selection via web to microcontroller Analog Circuitry Modulating, demodulating, modulating up and downconverting to software programmed frequencies Hardware and Software working independently

SDP 2011 Team Goeckel CDR SDP D AY By SDP Day: o Complete system integration o Transmitter PCB in enclosure o Receiver, Microncontroller all contained in enclosures as well