A drop-in replacement PCB for the Amiga Agnus chip
Rev. 2D, design using a PLCC-84 homebrew plug
FPGA pin assignment:
Rev. 2B, design using a PLCC-84-plug
When ordering from JLCPCB select:
Specify Layer Sequence: Yes
L1(Top layer): F_Cu.gbr
L2(Inner layer1): GND_Cu.gbr
L3(Inner layer2): VCC_Cu.gbr
L4(Bottom layer): B_Cu.gbr
Remove Order Number:
Specify a location
This will notify JLC where to put the order number, they will replace the "JLCJLCJLCJLC" silkscreen label.
Building Rev. 2B
REV 1A
REV 1B
| Position | Name/Value | Package | Notes |
|---|---|---|---|
| U1 | 10M04SCU169C8G | BGA-169 11.0x11.0mm_Layout13x13 | FPGA Intel MAX 10 10M04SCU169C8G |
| U2 | LM1117-3.3 | SOT-223 | Low-Dropout Linear Regulator 3.3 Volt |
| U3-U6 | SN74CBTD16210 | TSSOP-48 6.1x12.5mm_P0.5mm | 20-BIT FET Bus switch with level shifting, high-speed TTL-compatible. 74CBTD16210DGGR |
| U7 | 74LVC1G07 | 5-TSSOP, SC-70-5, SOT-353 (2.0 mm × 1.25mm) | 74LVC1G07 |
| U8 | Winslow PLCC-84 Plug | PLCC-84 Plug | Optionally use a DIY-plug (stacked PCBs) |
| U9 | PLCC-84_TH_pin_holes | Agnus_TH_plug_pins | Pins that could be used with the DIY-plug rev1d PCBs for manual fitting, L8.7mm Aliexpress |
| R1 | Resistor 4.7k or 10k Ω | 0603 | Pull-up resistor for PAL/NTSC selection for 8372 Agnus FPGA firmware/pinout |
| R2 | Resistor 4.7k or 10k Ω | 0603 | Pull-up resistor for pin 41 (PAL/NTSC-selector for A500 Rev.6A/A2000/A3000-pinout) since A500 Rev.6A doesn't have pull-up on motherboard like A2000/A3000/A3000T have. Only needed for A500 Rev.6A. but doesn't hurt to populate anyway. |
| RN1 | CAY16-103J4LF RES ARRAY 4 Resistors 10k Ω | 1206 | CAY16-103J4LF |
| RN2 | CAY16-103J4LF RES ARRAY 4 Resistors 10k Ω | 1206 | --"-- |
| C1-3 | Capacitor 10uF | 1206 | |
| C4,C5,C8,C11 | Capacitor 1uF | 0805 | |
| C6,C7,C9,C10 | Capacitor 0.1uF = 100nF | 0805 | |
| C12-C19 | Capacitor 0.01uF = 10nF | 0603 | |
| C20 | Capacitor 0.1uF = 100nF | 0603 | |
| C21-C24 | Capacitor 0.01uF = 10nF | 0603 | |
| JTAG | SMT Pin Header Male | SMT 2 x 5 Pin 2.0mm pitch |
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