ASDQ Board Layout - V2 as built for 2013/2014 test beam
- ASDQ-PROTO2.pdf Schematic
- ASDQv2-DES.zip
- ASDQv2-FAB.zip
ASDQ Board Layout - As built v1
- ASDQv1-DES-SCH.pdf
- ASDQv1-DES
- ASDQv1-FAB
- Component locations: top bottom
ASDQ Board Layout - Older versions for reference
Notes 2013-08-13:
Component values:
R13, R22 = 100 R10, R15, R18, R23 = 4.7k R44 = 22.1k R45 = 127k R14 = 25.5k R16 = 78.7k R19 = 26.1k R17 = 73.2k C20, C17 and C39 (newly added by me) = 2.2uF C15,C16,C18,C19,C21,C22,C23,C24 = "0.1uF" to match others C17,C20,C39 = "1.0uF" to match others C33, C38, C42, C43, C44, C46, C47, C61, C66, C70, C71, C72, C74, C75, C39, C67 = "470pF 2kV" J3, J5 = "FTSH-102-04-F-DV-ND" J6 = "LSHM-130-02.5-F-DV-N" R26 = 46.4k R28 = 30.9k R29 = 12.1k R30 = 17.8k R34 = 4.02k R38 = 2.00k R39, R40 = 2.40k R35, R36 = 3.60k
Notes 2013-06-18:
- L1 and L2 must go: no inductors allowed!
R24, R25, R27, R31-R33 should be 0805 package.
Notes 2013-03-08:
- R1 should be 0805 package
- Diodes D1, D2 etc can be BAV99BRLP-7 (2x2mm QFN package).
Notes 2013-02-15:
- 10V or 16V is fine for the caps, 10% tolerance. X7R or X5R is fine.
- 200pF is a typo! C39 and C67 should be 100pF like the others.
- For most of the resistors 1% 1/16W is fine.
- R24, R25, R27, R31, R32 and R33 should be 0.25W at least, 0805 package.
- J3 and J5 -- suggest Samtec FTSH-102-04-F-DV
- J2 is for now two thru-hole pads 0.042 dia separated by 0.200
VR for ASDQ power. Est 300mA for 2xASDQ or 600mA for 4x. Pick a 1A LDO regulator.
- Positive options (TI Positives
- TPS73701 (leading candidate)
- LD39150 (ST Micro, looks OK)
- TPS74001, TPS74201, TPS74301, TPS74801 (all 1.5A)
- LTC3026 (has 5V boost)
- Negative options (few!)
- LT3015 (DD pkg 3mm x 3mm)
Last modified 9 years ago
Last modified on Nov 5, 2014, 9:52:06 AM