Latest revision as of 16:34, 8 October 2014

Goals

LED<->PhotoDiode tests
500MS/s scope
HF (GHz) -> LF mixing, + probes?
HF sending/receiving + direction sensing

Components

FPGA: vq100, FPBG (1mm) footprints
- Spartan 3 (datasheet)
  - XC3S100E-4VQG100C digikey 122-1479-ND, EUR 8.56
  - XC3S500E-4FTG256C digikey 122-1485-ND, EUR 24.74
- Spartan 6 (spartan 6 family overview, Spartan 6 DC switching)
  - XC6SLX16-2FTG256C digikey, EUR 19.43, pinout: Spartan 6 packaging and pinouts
  - XC6SLX9-2TQG144C digikey 122-1745-ND, 13 EUR

Scope functionality:
- ADC
- Analog switches, farnell 1755412RL, TEXAS INSTRUMENTS - TS5A4594DBVR - IC, ANALOG SWITCH 5V SOT23-5: 1 ch, On resistance 4-7 Ohm, Seperation @ 100MHz: -34 dB

- opamp:
  - 2112569, ANALOG DEVICES OPAMP, RRO, 300MHZ, 650V/µS, 8SOIC
  - Video farnell 1495449, FHP3450IMTC14X FAIRCHILD, QUAD VIDEO, SMD, TSSOP14, large 1/f noise, but 4 ch, > 100MHz

AWG functionality:
- AD9764 (14 bit, v02), F9425640 (EUR 14.96)
- Niet op voorraad: TEXAS INSTRUMENTS - DAC5662IPFB. - IC, DAC 12BIT 200MSPS DUAL 48TQFP, Farnell 1754791, EUR 1.40
- Dual 16 bit, 200MHZ DAC: MAX5875, digikey 28EUR
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)

POWER(1.2V, 2.5, 3.3?),
- LDO's farnell search for 1.2, 2.5, 3.3 V LDO's in SOT223
  - 3.3V: farnell 1494942, EUR 0.37 (x10) SOT223
  - 2.5V: farnell 7208340, EUR 0.21 SOT223
  - 1.2V: farnell 2316819, EUR 0.24 SOT 223
- Switching:
  - TI DC/DC CONV, STEP DOWN, 1.6V, SOT23-5, 300mA, Farnell 1461064, EUR 0.127
  - LT, BUCK CONV, 1.5MHZ, 700MA, 16QFN 0.5--5V -> 1.5--5V farnell 1715228
  - TPS62110, farnell 1180173

FTDI2232, FTDI - FT2232D/TR - USB-UART Farnell 1615843, EUR 8.44, digkey 768-1010-1-ND

DisplayPort connector MULTICOMP RECEPTACLE, DISPLAY PORT, SMT, farnell 1686453, EUR 0.76 (with of plug: 20.0mm)
- CCR: pin 9/7, MR: pin 10/12; ML_Lane 0: pin 1/3, ML_Lane 1: pin 4/6
Differential Cable Driver CLC001
USB connector:
- farnell 2293752 € 0,60 Micro B connector, SMD; different layout than Papilio
LEDs farnell 2001788,'bright yellow', 0402.

Xilinx PCB design guides

Four and six layour PCB Design for Spartan-3E FT258 BGA
Xilinx Spartan-6 FPGA PCB Design guide Lots of info about traces, capacitance, etc.

Other stuff

SMD291 - FLUX farnell 1850216, digikey, or 5cc
SMD291AX solder paste datasheet (the one from digikey is only partly readable)
Differential impedance calculator (wrong results for strip?): eeweb, mantaro.com

PCB Errors

NC pins on DisplayPort should have been connected to ground

@@ Line 1: / Line 1: @@
-=TODO=
+=Goals=
+* LED<->PhotoDiode tests
-==layout==
+* 500MS/s scope
-* connect spartan-6 to papilio (FTDI, Flash memory, clk, power)
+* HF (GHz) -> LF mixing, + probes?
-* make all resistors on papilio 402, check capacitors
+* HF sending/receiving + direction sensing
-* add header pins to FLASH SPI, to allow direct programming by raspberry (to work around possible problems in FTDI connections)
-* add resistor-map to make simple DA converter
-* add location for oven-controlled crystal
-*
-==questions==
-* polarity of CCR on Display Port cable? ([http://en.wikipedia.org/wiki/Display_port wiki] has pin 7 as +lane_2, wim pin 7 as -CCR) -- Oh, that's because the sink-side has the pinning reversed -- but then the polarity of MR is wrong
 =Components=
@@ Line 17: / Line 11: @@
 *** [http://www.digikey.nl/product-detail/en/XC3S500E-4FTG256C/122-1485-ND/1091713 XC3S500E-4FTG256C digikey 122-1485-ND, EUR 24.74]
 ** Spartan 6 ([http://www.xilinx.com/support/documentation/data_sheets/ds160.pdf spartan 6 family overview], [http://www.xilinx.com/support/documentation/data_sheets/ds162.pdf Spartan 6 DC switching])
-*** [http://www.digikey.nl/product-detail/en/XC6SLX16-2FTG256C/122-1672-ND/2408282 XC6SLX16-2FTG256C digikey, EUR 19.43]
+*** [http://www.digikey.nl/product-detail/en/XC6SLX16-2FTG256C/122-1672-ND/2408282 XC6SLX16-2FTG256C digikey, EUR 19.43], pinout: [http://www.xilinx.com/support/documentation/user_guides/ug385.pdf#page=277 Spartan 6 packaging and pinouts]
 *** [http://www.digikey.nl/product-detail/en/XC6SLX9-2TQG144C/122-1745-ND/2339919 XC6SLX9-2TQG144C digikey 122-1745-ND, 13 EUR]
@@ Line 46: / Line 40: @@
 * POWER(1.2V, 2.5, 3.3?),
 ** LDO's [http://nl.farnell.com/jsp/search/browse.jsp?N=202724+110199365+110191476+110197635+110154309&Ns=P_PRICE_FARNELL_NL|0&locale=nl_NL&appliedparametrics=true&getResults=true&suppressRedirect=true&isRedirect=&No=0&divisionLocale=nl_NL&catalogId=&skipManufacturer=false&skipParametricAttributeId=&prevNValues=202724+110199365+110191476+110197635&mm=1001850||,&filtersHidden=false&appliedHidden=false&autoApply=false&originalQueryURL=%2Fjsp%2Fsearch%2Fbrowse.jsp%3FN%3D202724%26No%3D0%26getResults%3Dtrue%26appliedparametrics%3Dtrue%26locale%3Dnl_NL%26divisionLocale%3Dnl_NL%26catalogId%3D%26skipManufacturer%3Dfalse%26skipParametricAttributeId%3D%26prevNValues%3D202724 farnell search for 1.2, 2.5, 3.3 V LDO's in SOT223]
-*** 3.3V: [http://nl.farnell.com/exar/spx1117m3-l-3-3-tr/ic-ldo-regulator-800ma-3-3v/dp/2072301 farnell 2072301, EUR 0.34], SOT223
+*** 3.3V: [http://nl.farnell.com/texas-instruments/tlv1117-33cdcy/v-reg-ldo-3-3v-0-8a-sot-223-4/dp/1494942 farnell 1494942, EUR 0.37 (x10)] SOT223
 *** 2.5V: [http://nl.farnell.com/taiwan-semiconductor/ts1117cw-2-5/v-reg-ldo-1a-2-5v-1117-sot-223/dp/7208340 farnell 7208340, EUR 0.21] SOT223
 *** 1.2V: [http://nl.farnell.com/nxp/nx1117c12z-115/ldo-fixed-1-2v-1a-sot-223-4/dp/2316819 farnell 2316819, EUR 0.24] SOT 223
@@ Line 62: / Line 56: @@
 * USB connector:
 ** [http://nl.farnell.com/fci/10103594-0001lf/micro-usb-b-receptacle-smt-ra-5way/dp/2293752 farnell 2293752 € 0,60] Micro B connector, SMD; different layout than Papilio
+* LEDs [http://nl.farnell.com/kingbright/kphhs-1005syck/smd-led-0402-yellow/dp/2001788 farnell 2001788],'bright yellow', 0402.
 =Xilinx PCB design guides=
@@ Line 69: / Line 64: @@
 =Other stuff=
 * SMD291 - FLUX [http://nl.farnell.com/chip-quik/smd291/flux-syringe-10cc-no-clean/dp/1850216?Ntt=1850216 farnell 1850216], [http://www.digikey.com/product-detail/en/SMD291/SMD291-ND/355201 digikey], or [http://www.digikey.com/product-detail/en/SMD291NL/SMD291NL-ND/1160000 5cc]
+* SMD291AX solder paste [http://www.farnell.com/datasheets/1376171.pdf datasheet] (the one from digikey is only partly readable)
-* Differential impedance calculator [http://www.eeweb.com/toolbox/edge-coupled-microstrip-impedance/ eeweb]
+* Differential impedance calculator (wrong results for strip?): [http://www.eeweb.com/toolbox/edge-coupled-microstrip-impedance/ eeweb], [http://www.mantaro.com/resources/impedance_calculator.htm mantaro.com]
+=PCB Errors=
-=Todo/tocheck=
+* NC pins on DisplayPort should have been connected to ground
-* make papilio output +/- 71MHz differential signal, at several differential voltages.
-* add footprints to eagle
-* can spartan-differential easily be made compatible with rs484?
 =See Also=

Difference between revisions of "FPGA Test Board"

Latest revision as of 16:34, 8 October 2014

Contents

Goals

Components

Xilinx PCB design guides

Other stuff

PCB Errors

See Also

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