Imported from GitHub: jbilander/ReAgnus · commit 88774e4 · license CC-BY-SA-4.0

Description

A drop-in replacement PCB for the Amiga Agnus chip

README

ReAgnus

A drop-in replacement PCB for the Amiga Agnus chip

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Rev. 2D, design using a PLCC-84 homebrew plug

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FPGA pin assignment:

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Rev. 2B, design using a PLCC-84-plug

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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.

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Building Rev. 2B

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BOM Rev. 2E (837X - Universal Agnus PCB design)

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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