//  File:  transformer_mc_t622_geom.txt
//
//  Date:  14-Feb-2023   Original version for Disco-Kraken
//         15-Feb-2023   Modify to also fit Mini-Circuits package
//
//         18-Aug-2023   Change the name of this geom and edit it
//                       to make it specific to the Mini-Circuits T622-KK81
//
//
//  Geometry for the  6 pin Pulse Transformer  component.
//                   -------------------------
//
//
//  This geometry is for the  Mini-Circuits  T-622-KK81
//  and  T-622-KK81+  pulse transformer which has 3 windings
//  with a 1:1:1 ratio.   The part number with the "+"
//  indicates a Lead Free component.
//
//  The windings are between pins:  1,6   2,5   and   3,4.
//  Pins: 1, 2, 3  have the phase dots.
//
//  There are a number of non-standard things about this
//  Mini-Circuits part:
//
//   - The marker for Pin #1 is in the usual position on
//     this small DIP package but this Pin #1 marker is
//     actually indicating  what Mini-Circuits calls Pin #6
//     of this transformer.
//
//   - They label all 3 windings as "Primary"  so I have
//     assumed that there is no prefered primary vs secondary
//     windings.
//
//   - The phase dots for all 3 windings are on the same
//     side of the DIP package,  that is MC pin numbers
//     1, 2, 3  are given Phase Dots in the MC datasheet.
//
//   - There is no indication in the MC datasheet as to
//     whether or not the hot side of a single ended
//     signal should be connected to the phase doted pin
//     or not.
//
//  In all of the following text in this geometry and in
//  all of my DK design and documentation  I use the pin
//  adjacent to the Pin #1 marker as pin #1  and  I number
//  the remaining 5 pins in the normal CCW way.
//
//    - I'm using the pin 1:6 winding as the primary
//      with pin #1 the hot side if this transformer
//      is driven from a single ended source.
//
//    - The pin 2:5 winding is the out of phase secondary,
//      i.e. pin #5 is the inverted differential output
//      from the transformer and pin #2 goes to AC ground.
//
//    - The pin 3:4 winding is the in phase secondary, i.e.
//      pin #3 is the non-inverted differential output
//      from the transformer and pin #4 goes to AC ground.
//
//    - So the secondary pins 2 and 4  are at AC ground.
//
//    - If this transformer is driven from a single ended
//      source that both sides of this package are setup
//      so that every other pin in Ground and the in
//      between pins are signal,  i.e. things are layed
//      out for the best primary to secondary isolation.
//
//
//  This geometry is layed out with Pin #1 in the
//  upper left-hand corner.  The main axis of this
//  geomerty is vertical.
//


$abort_enable = @false;
$$lock_windows(@on) ;
$$snap_diagonal(@off) ;
$$snap_orthogonal(@off) ;



//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
//
//   Shown next is the recommended pad size taken from the
//   Mini-Circuits  T-622-KK81  datasheet.
//
//      The Pad is:   3.18 mm in X   by   1.27 mm in Y
//
//                    In a row the pad to pad pitch is      2.54 mm
//                    The C_to_C distance between rows is  12.06 mm
//
//   These pads are very very large compared to the actual feet
//   on this MC package.  Using such large pcb pads is just going
//   to add a lot of parasitic capacitance to this high frequency
//   circuit.
//
//
//   The actual feet on this MC package that touch and solder to
//   the pcb are:
//
//                 The actual feet are:   1.27 mm in X   by   0.51 mm in Y
//      The actual C_to_C between feet:  13.34 mm
//
//
//   I will make the pads used in the geometry:
//
//                    The Pads are:   2.50 mm in X   by   1.00 mm in Y
//      The C_to_C between Pads is:  12.93 mm
//
//   In the X direction the Pad is  1.23 mm  longer than
//   the X dimension of the Foot.  I put 2/3 of this extra
//   length  inboard of the Foot to make a good solder fillet
//   to the bend in the Foot.
//


$$create_pin("pulse_trans_pad", @replace);

$$page(0.0, 0.0, 0.0, @mm, 0.0, 0.0, [0.0,0.0,'PI$pulse_trans_pad'] );

$$point_mode(@vertex);

$$polygon( "PAD", ,         [ -1.25, -0.50,    1.25, -0.50,    1.25, 0.50,    -1.25, 0.50 ]);

$$polygon( "SOLDER_MASK", , [ -1.30, -0.55,    1.30, -0.55,    1.30, 0.55,    -1.30, 0.55 ]);

$$polygon( "PASTE_MASK", ,  [ -1.25, -0.50,    1.25, -0.50,    1.25, 0.50,    -1.25, 0.50 ]);

$$attribute( "TERMINAL_SURFACE_DEFINITION", "");

//----------------------------------------------------------------------------
//----------------------------------------------------------------------------



$$create_component("Pulse_Transformer", @replace);

$$page(0.0, 0.0, 0.0, @mm, 0.0, 0.0, [0.0,0.0,'CO$Pulse_Transformer'] );

$$point_mode(@vertex);

$$attribute( "COMPONENT_LAYOUT_TYPE", "surface");

$$attribute( "COMPONENT_LAYOUT_SURFACE", "both");

$$attribute( "COMPONENT_HEIGHT", "", , @scale , , [ 6.50, 0.0 ]);



//
//  Component Placement Outline
//
//        MiniCircuits  Comp Place  15.80 X  by  6.60 Y
//

$$template_line_style( @Solid );

$$initial([    7.90,   3.30  ], , @nosnap );
$$terminal([  -7.90,   3.30  ] );
$$terminal([  -7.90,  -3.30  ] );
$$terminal([   7.90,  -3.30  ] );
$$terminal([   7.90,   3.30  ] );

$$attribute( "COMPONENT_PLACEMENT_OUTLINE", "", @mark, @scale );



//
//   Silkscreen  Start of
//
//        MiniCircuit Box   6.90 X  by  7.60 Y
//

$$template_line_style( @Solid );


$$path( "SILKSCREEN_1", 0.20, , [ -3.45,  3.80,    3.45,  3.80 ]);
$$path( "SILKSCREEN_1", 0.20, , [ -3.45, -3.80,    3.45, -3.80 ]);

$$path( "SILKSCREEN_1", 0.20, , [ -3.45,  3.80,   -3.45, -3.80 ]);
$$path( "SILKSCREEN_1", 0.20, , [  3.45,  3.80,    3.45, -3.80 ]);


//  Pin #1 Marker
//
//        MiniCircuit Marker   -2.20 X  by  2.7 Y
//

$$circle( "SILKSCREEN_1", -2.40, 2.80,   0.5,  0.20 );
$$circle( "SILKSCREEN_1", -2.40, 2.80,   0.6,  0.20 );
$$circle( "SILKSCREEN_1", -2.40, 2.80,   0.7,  0.20 );
$$circle( "SILKSCREEN_1", -2.40, 2.80,   0.8,  0.20 );


// Reference Designator is on the SILKSCREEN Layer.

$$text( "SILKSCREEN_1", "^$ref", 0.0, 5.2, 1.5, @CC, 0, 0.7, 0.20, "std", "None", 0.0, 0.0 );


//
//   End of Silkscreen
//



//
//  For the  Mini-Circuits  layout     12.93 mm X CtoC   X is +- 6.45 mm
//           -------------
//
//  Define the 6 pins on the Pulse_Transformerp:
//  pin #1 is to the Upper Left  and  the axis is Vertical
//


$$attribute( "COMPONENT_PIN_DEFINITION",    "1", , @scale , , [ -6.45,  2.54 ]);

$$attribute( "COMPONENT_PADSTACK_OVERRIDE", "1, pulse_trans_pad");


$$attribute( "COMPONENT_PIN_DEFINITION",    "2", , @scale , , [ -6.45,  0.00 ]);

$$attribute( "COMPONENT_PADSTACK_OVERRIDE", "2, pulse_trans_pad");


$$attribute( "COMPONENT_PIN_DEFINITION",    "3", , @scale , , [ -6.45, -2.54 ]);

$$attribute( "COMPONENT_PADSTACK_OVERRIDE", "3, pulse_trans_pad");




$$attribute( "COMPONENT_PIN_DEFINITION",    "4", , @scale , , [  6.45, -2.54 ]);

$$attribute( "COMPONENT_PADSTACK_OVERRIDE", "4, pulse_trans_pad");


$$attribute( "COMPONENT_PIN_DEFINITION",    "5", , @scale , , [  6.45,  0.00 ]);

$$attribute( "COMPONENT_PADSTACK_OVERRIDE", "5, pulse_trans_pad");


$$attribute( "COMPONENT_PIN_DEFINITION",    "6", , @scale , , [  6.45,  2.54 ]);

$$attribute( "COMPONENT_PADSTACK_OVERRIDE", "6, pulse_trans_pad");