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

2 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

3 SDP 2011 Team Goeckel CDR Requirements Specification Cost: Under $200 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.

4 SDP 2011 Team Goeckel CDR System Overview To Router

5 SDP 2011 Team Goeckel CDR Transmitter: Schematic

6 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

7 SDP 2011 Team Goeckel CDR Transmitter Design: Leveling Network MAX2831 Common Mode Voltage: 1.2V ADRF6806: 1.65V Voltage Divider via resistive network to achieve level matching between IC’s

8 SDP 2011 Team Goeckel CDR Trasmitter Design: Power 250mA per IC x 8 IC’s = 2A 12V max for Vcc MAR-8A+

9 SDP 2011 Team Goeckel CDR Transmitter Design: Interfacing DATA, CLK, CS[7:0]; one chip select high per programming cycle

10 SDP 2011 Team Goeckel CDR Transmitter Design: Amplifier Max2831 recommends 100mVrms = 0dbm at input Input to ADRF: -55dbm; Need~50-60dB of gain Minicircuits DC-1GHz, 25dB MAR-8A+

11 SDP 2011 Team Goeckel CDR Receiver Design

12 SDP 2011 Team Goeckel CDR Challenges  Common-Mode voltage differences  Variable Voltage Settings  Evaluation boards must be tested

13 SDP 2011 Team Goeckel CDR PCB  PCB design must be completed  PCBs need to be ordered and tested

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

15 SDP 2011 Team Goeckel CDR SPI Design: Programming Register 7 Register 6 Register 5 Register 4 Register 3 Registe r 2 Registe r 1 Register Designates Register RFICs controlled by programming registers -ADRF6806, MAX2831 Each RFIC contains 8 registers Example of register values for ADRF6806 Atmel provides SPI libraries

16 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

17 SDP 2011 Team Goeckel CDR Design Challenges  Interfacing between the integrated circuits  Powering the boards  PCB design  Interfacing between microcontroller and hardware

18 SDP 2011 Team Goeckel CDR Budget QTY DescriptionIndividual PriceMin QTYQTY PriceActual Price 1 ADRF6806EVALUATION$ MAX2831EVK$1, ADL5386EVK$ MAX2831$ $ ADL5386$ $ MAR-8A+$ avr32 evaluation board$160 1 $ layer PCB$ $ Tunable VCO$ µF ±10% capacitor (1206) Murata GRM31CR60J106K $0.591 $ pF ±0.25pF capacitors (0402) Murata GRM1555C1H1R5C $ $0.08$ pF ±10% capacitor (0402) Murata GRM155R71H102K $ $0.03$ pF ±10% capacitor (0402) Murata GRM155R71H222K $ $0.03$ pF ±5% capacitor (0402) Murata GRM1555C1H680J $ $0.04$ µF ±10% capacitor (0805) Murata GRM21BR60J106K $0.351 $ DB25 right-angle male connector AMP $6.021 $ x 2 headers Sullins PEC36SAA $1.431 $2.86$ Ω ±1% resistors (0402) $0.061 $0.48$ kΩ ±5% resistors (0402) $0.051 $0.20$ Ω ±1% resistors (0402) $0.061 $0.24$ Ω ±1% resistors (0402) $ $0.59$ Ω ±5% resistor (0402 $0.991 $ Ω ±1% resistors (0402) $0.061 $0.12$ kΩ ±1% resistor (0402) $ kΩ ±5% resistor (0402) $ Ω ±5% resistor (0402) $ kΩ ±5% resistor (0402) $ GHz RF baluns Murata LDB212G4010C-001 $0.641 $ Maxim MAX4447ESE+ $5.391 $ Maxim MAX4444ESE+ $5.121 $ Low-dropout reference Maxim MAX6061BEUR+ $ Maxim MAX2831ETM+ $ SN74LVTH244ADB Texas Instruments SN74LVTH244ADBR $0.731 $ MHz crystal Kyocera CX3225SB40000H0WZK21 $ Test points Keystone 5000 $ $11.88$ SMA edge-mount connectors, round Johnson $5.101 $ Shunts (ANTSEL, LDO_IN, RXBBBUF, RXTX, TXBBBUF, VCCVCO) Sullins SSC02SYAN $0.421 $2.52 $103.74$764.14

19 SDP 2011 Team Goeckel CDR Gantt Chart TaskJanuaryFebruaryMarchApril Loop Filters Finalize System Noise/Power PCB Design Mount PCBs PCB Fab SPI functionality Multi – User Web Server Web – Server control of SPI Interface Casing

20 SDP 2011 Team Goeckel CDR What's Next  Final Design Production Transmitter PCB Fabricated Receiver PCB Fabricated Both PCBs mounted with components  Final Product Testing Both transmitter and receivers need initial programming Testing will be done through reprogramming Looking to deliver the best possible picture  Housing Produced

21 SDP 2011 Team Goeckel CDR Team Roles  Robert Gibb – Hardware Interfacing, Low Level Software Design  Dominic Emilian – Transmitter Design, PCB Design  Patrick Coletti – Web Server  Seth Berggren – Receiver Design

22 SDP 2011 Team Goeckel CDR Any Questions…