Labels Milestones
BackFile uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on http://www.latticesemi.com/view_document?document_id=213 Lattice caBGA-756, ECP5 FPGAs, 27.0x27.0mm, 756 Ball, 32x32 Layout, 0.8mm Pitch, https://www.ti.com/lit/ml/mpbg777/mpbg777.pdf BGA 289 0.8 ZAV S-PBGA-N289 Texas Instruments, DSBGA, area grid, NSMD pad definition Appendix A Virtex-7 BGA, 42x42 grid, 42.5x42.5mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=302, NSMD pad definition (http://www.ti.com/lit/ds/symlink/lm4990.pdf, http://www.ti.com/lit/an/snva009ag/snva009ag.pdf Texas Instruments, DSBGA, 1.36x1.86mm, 10 bump 3x4 (area) array, NSMD pad definition Appendix A Kintex-7 and Zynq-7000 BGA, 22x22 grid, 19x19mm package, 0.8mm pitch.
- 1x32, 2.54mm pitch, DIN 41651 .
- (https://katalog.we-online.de/em/datasheet/9774090951.pdf), generated with kicad-footprint-generator Hirose.