wavebubble:errata
Differences
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wavebubble:errata [2007/11/23 12:01] bushing added list of urls -- extract info from these |
wavebubble:errata [2016/01/28 18:05] (current) |
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| Unfortunately, there are many errors or discrepancies between the various resources available for this project. Eventually, they will all be listed here; if you can then update one of the resources (schematic, PCB layout, assembly directions), please do so and then remove the error from this list. | Unfortunately, there are many errors or discrepancies between the various resources available for this project. Eventually, they will all be listed here; if you can then update one of the resources (schematic, PCB layout, assembly directions), please do so and then remove the error from this list. | ||
| - | Forum threads: (extract info from thread, place on this page and remove thread from list:) | + | Note: This errata does not apply to the WB 2010 design by Mictronics found here: http://ladyada.net/wiki/wavebubble/wave_bubble_2010 |
| + | ===== Part changes: ===== | ||
| + | ==== Battery board ==== | ||
| + | ^ Part ^ Incorrect ^ Correct ^ Remarks ^ | ||
| + | | R2 | 2K, 0.25W | 500-1000 ohm | The lower the resistance, the brighter the power LED -- can be any wattage | | ||
| + | | R3 | ? | do not place | unused | | ||
| + | | R4 | ? | do not place | unused | | ||
| + | | R5 | ? | do not place | unused | | ||
| + | | Q2 | ? | do not place | unused | | ||
| + | | D1 | ? | SS14 | | ||
| + | | J2 | optional | | If you omit this part, you have to jumper two pads together or else you won't get power from the USB port | | ||
| - | * http://www.ladyada.net/forums/viewtopic.php?t=4240 | + | ==== Main (radio) board ==== |
| - | * http://www.ladyada.net/forums/viewtopic.php?t=4123 | + | |
| - | * http://www.ladyada.net/forums/viewtopic.php?t=4366 | + | |
| - | * http://www.ladyada.net/forums/viewtopic.php?t=4255 | + | |
| - | * http://www.ladyada.net/forums/viewtopic.php?t=4143 | + | |
| - | * http://www.ladyada.net/forums/viewtopic.php?t=4123 | + | |
| - | * http://www.ladyada.net/forums/viewtopic.php?t=4125 | + | |
| - | * http://www.ladyada.net/forums/viewtopic.php?t=4029 | + | |
| - | * http://www.ladyada.net/forums/viewtopic.php?t=4006 | + | |
| - | * http://www.ladyada.net/forums/viewtopic.php?t=3677 | + | |
| - | * http://www.ladyada.net/forums/viewtopic.php?t=3409 | + | |
| - | * http://www.ladyada.net/forums/viewtopic.php?t=3225 | + | |
| - | * http://www.ladyada.net/forums/viewtopic.php?t=3179 | + | |
| + | ^ Part ^ Incorrect ^ Correct ^ Remarks ^ | ||
| + | | C20 | 160pF, do not place | 390-550pF, placement recommended. | | ||
| + | | C36 | .47uF | do not place | part of (unused) noise circuit; do not place | | ||
| + | | C40 | 68pF | ? | Sirenza datasheets say 1-2pF, not clear if this is an error or not | | ||
| + | | C50 | ? | 1 uF 1206 | | ||
| + | | C51 | ? | .1 uF 1206 | | ||
| + | | C52 | ? | 1 uF 1206 | | ||
| + | | C53 | ? | .1 uF 1206 | | ||
| + | | C62 | 0pF | do not place | | ||
| + | | C63 | ? | 1pF 0603 | | ||
| + | | C77 | ? | 4.7uF or 1uF, 0603 | Power supply filter cap; 4.7uF part is difficult to get in 0603, 1uF is ok | | ||
| + | | C80 | 20pF | 22pF | Substitute to save money by combining order with other 22pF caps | | ||
| + | | C81 | 20pF | 22pF | Substitute to save money by combining order with other 22pF caps | | ||
| + | | C83 | .1uF | .1uF ? | on top/parallel R41 | | ||
| + | | C84 | .1uF | .1uF ? | on top/parallel R43 | | ||
| + | | D1 | 1N5817 | SS14 | | ||
| + | | D2 | 1N5817 | SS14 | | ||
| + | | D3 | 1N5817 | SS14 | | ||
| + | | D4 | 1N5235 | do not place | part of (unused) noise circuit; do not place | | ||
| + | | D5 | 1N5817 | SS14 | optional | | ||
| + | | D6 | 1N5817 | SS14 | optional | | ||
| + | | IC2 | LM2733X | LM2731Y | Either part will work, but the 33X is not recommended for supplies less than 16v | | ||
| + | | L1 | 15 uH | 7.3 uH | Only change if using LM2731Y | | ||
| + | | L5 | ? | 1K resistor | | ||
| + | | L6 | ? | 1K resistor | | ||
| + | | R1 | 510K | ? | Pick a low-voltage point (e.g. 3.7v) -- this voltage divider should | | ||
| + | | R2 | 220K | ? | should output 1.1v at that point. Not currently implemented in firmware. | | ||
| + | | R3 | ? | 39K | | ||
| + | | R4 | ? | 12K | | ||
| + | | R8 | ? | do not place | not usually necessary | | ||
| + | | R9 | ? | do not place | not usually necessary | | ||
| + | | R12 | ? | 100 ohms | not a critical value (instructions say 68 ohms) | | ||
| + | | R13 | 100K | 63K | Value may vary to adjust VCO DC Offset gain | | ||
| + | | R15 | 100K | 33K | Value may vary to adjust VCO DC Offset gain | | ||
| + | | R19 | 2K | do not place | part of (unused) noise circuit; do not place | | ||
| + | | R27 | 0 ohms | ferrite bead | | ||
| + | | R28 | 0 ohms | ferrite bead | | ||
| + | | R31 | 0 ohms | do not place | | ||
| + | | R90 | 100K | do not place | part of (unused) noise circuit; do not place | | ||
| + | |||
| + | ===== Misc ===== | ||
| + | The silkscreened part numbers for the tiled Gerbers are incorrect; see http://www.ladyada.net/forums/viewtopic.php?t=4143 for more info. | ||
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