FPGA Test Board

Components

• FPGA: vq100, FPBG (1mm) footprints
  • XC3S100E-4VQG100C, digikey 122-1479-ND
  • XC3S500E-4FTG256C, digikey 122-1485-ND

• Scope functionality:
  • D/A converter, for instance
    • AD9764 (14 bit, v02), F9425640 (EUR 14.96)
    • AD9288
  • Analog switches, farnell 1755412RL, TEXAS INSTRUMENTS - TS5A4594DBVR - IC, ANALOG SWITCH 5V SOT23-5: 1 ch, On resistance 4-7 Ohm, Seperation @ 100MHz: -34 dB
  • TEXAS INSTRUMENTS - DAC5662IPFB. - IC, DAC 12BIT 200MSPS DUAL 48TQFP, Farnell 1754791, EUR 1.40

• 1000BaseT ethernet chip + connector
  • LAN7500, Farnell 2292572, EUR 7.18, Digikey, EUR 4.07
• 16 pin header
• ?? 96-pin harting connector?
• 25MHz/50MHz clock for instance
  • FOX ELECTRONICS - FXO-HC536R-25: 25MHz, 3.3V, 25ppm,farnell 1641039 (EUR 1.79),
  • FOX ELECTRONICS - FXO-HC536R-50: 50MHz, 3.3V, 25ppm, farnell 1641047 (EUR 1.79)
• LDO's(1.2V, 2.5, 3.3?),
  • NXP - NX1117CE12Z - LDO, 1.2V, 1.25%, SOT223, farnell 2057277 (EUR 0.22)
• FTDI2232, FTDI - FT2232D/TR - USB-UART Farnell 1615843, EUR 8.44

• DisplayPort connector MULTICOMP RECEPTACLE, DISPLAY PORT, SMT, farnell 1686453, EUR 0.76
• (micro A/B) USB connector GLOBAL CONNECTOR TECHNOLOGY - USB3105-30-A, Farnell 2293775, EUR 1.01

Todo/tocheck

• make papilio output +/- 71MHz differential signal, at several differential voltages.
• add footprints to eagle
• can spartan-differential easily be made compatible with rs484?

Other Documents

• Spartan-6 FPGA PCB Design and Pin Planning Guide
• Sending serial data over 2 papilios -- looks interesting http://www.programmableplanet.com

See Also

• FPGA
• Papilio