An open source flicker fixer PCB for Amiga 1200 and 500 to be fitted under the floppy drive.
WORK IN PROGRESS, NOT FINISHED!!!
Rev. 1B
Rev. 1A
| Designator | Name/Value | Package | Notes |
|---|---|---|---|
| U1 | Voltage Regulator 3.3V, LM1117-3.3 or AMS1117-3.3 |
SOT-223 | 3.3V 1A Low Drop-Out (LDO) Voltage regulator. https://www.aliexpress.com/item/32869037691.html |
| U2 | Gowin FPGA GW1NR-UV9LQ144PC6/I5 | LQFP-144 | FPGA - Field Programmable Gate Array, 8640 LE, 121 I/O, Embedded 64Mbit 16-bit PSRAM GW1NR-UV9LQ144PC6/I5 |
| U3 | SiI9022A | QFN-72-1EP_10x10mm_P0.5mm_EP4.7x4.7mm | 165 MHz High Performance HDMI Transmitter SII9022ACNU |
| U4 | Voltage Regulator 1.8V, MCP1702T-1802E/CB |
SOT-23 | 1.8V Low Drop-Out (LDO) Voltage regulator. MCP1702T1802E-CB |
| U5 | Audio A/D Converter AK5720VT | TSSOP-16 | ADC IC 2ch 24bit 96K. AK5720VT |
| U6 | Voltage Regulator 1.2V, MCP1702T-1202E/CB |
SOT-23 | 1.2V Low Drop-Out (LDO) Voltage regulator. MCP1702T1202E-CB |
| X1 | Abracon ASE-27.000MHZ-L-R-T | XTAL OSC SMD 3.2 mm x 2.5 mm | Standard Clock Oscillator XO 27MHZ CMOS SMD ASE-27.000MHZ-L-R-T |
| X2 | Abracon ASFL1-24.576MHZ-EC-T | XTAL OSC SMD 5.0 mm x 3.2 mm | Standard Clock Oscillators 24.576 MHZ 15PF 3.3V ASFL1-24.576MHZ-EC-T |
| X3 | Standard Clock Oscillator 50 MHz, 3.3V LVCMOS | XTAL OSC SMD 7 mm x 5 mm | e.g. FN5000109 or LH736050 |
| J1 | FFC & FPC Connectors .5 FPC VT ZIF Type-A | 40 Position FPC connector, Pitch 0.5 mm | TE Connectivity 4-1734742-0 |
| J2 | HDMI 1.4 Receptacle Connector 19 Position Surface Mount, Right Angle TH | HDMI Receptacle | Amphenol 10029449-111RLF |
| J3 | Phone Connectors 3.5 mm, Stereo | 3 Position Through Hole | Kycon STX-3501-3N |
| J4 | VCC/GND Phoenix Contact 2pin 2.54mm pitch | Fixed Terminal Blocks 2P 2.54mm 90DEG | VIN +5V Be careful with orientation, check polarity BEFORE connecting anything here. You can take +5V/GND from internal floppy pin-header on Amiga motherboard. 1725656 or Aliexpress |
| D1-D3 | ESD Suppressors / TVS Diodes | U-DFN2510-10 | D5V0F4U10LP-7 |
| D4 | ESD Suppressor / TVS Diode 1 Ch | SOD-723-2 | SP1003-01DTG Optional ESD protection for VCC. |
| D5 | Diode - General Purpose | 0805 | e.g. TS4148RBG Diode in RC-debounce (R5, C34) circuit for BT1 (Button 1). |
| L1-L4 | Ferrite Bead 600ohms 100MHz .5A Monolithic | 0805 | e.g. HZ0805E601R-10 |
| C1-C13 | Capacitor 10uF | 1206 | |
| C14 | Capacitor 0.47uF | 1206 | e.g. UMK316B7474KL-T |
| C15, C16 | Capacitor 0.1uF | 1206 | |
| C17 | Polarized Capacitor 100uF | CP_Elec_6.3x7.7 | e.g. Wurth SMD WCAP-AS5H 100uF |
| C18, C19 | Polarized Capacitor 22uF | CP_Elec_5x5.8 | e.g. Wurth SMD WCAP-AS5H 22uF |
| C20-C22 | Capacitor 1uF | 0805 | |
| C23-C43 | Capacitor 0.1uF = 100nF | 0805 | |
| C44-C47 | Capacitor 0.1uF = 100nF | 0603 | |
| C48-C53 | Capacitor 0.01uF = 10nF | 0603 | |
| R1-R3 | 1k Ω | 0805 | |
| R4, R5 | 10k Ω | 0805 | |
| R6 | 0-9 Ω or solder blob | 0805 | e.g. CR0805-J/-000ELF |
| R7-R14 | 33 Ω | 0603 | e.g. CR0603-FX-33R0ELF |
| R15, R16 | 2k Ω | 0603 | e.g. CR0603-FX-2001ELF |
| R17 | 4.3k Ω, 1% tolerance | 0603 | e.g. CR0603-FX-4301ELF The recommended value is 4.3k Ω ±1% with internal source termination enabled and 5.1k Ω ±1% without internal source termination. |
| R18-R20 | 4.7k Ω | 0603 | |
| R21 | 10k Ω | 0603 | |
| RN1, RN2 | CAY16A-4701F4LF RES ARRAY 4 Resistors 4.7k Ω | 1206 | CAY16A-4701F4LF |
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