https://github.com/jbilander/beambender
An open source flicker fixer PCB for Amiga 1200 and 500
https://github.com/jbilander/beambender
Last synced: 5 months ago
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An open source flicker fixer PCB for Amiga 1200 and 500
- Host: GitHub
- URL: https://github.com/jbilander/beambender
- Owner: jbilander
- License: cc-by-sa-4.0
- Created: 2023-08-30T08:56:45.000Z (almost 3 years ago)
- Default Branch: main
- Last Pushed: 2024-04-01T16:20:58.000Z (over 2 years ago)
- Last Synced: 2024-04-01T17:32:46.968Z (over 2 years ago)
- Homepage:
- Size: 5.76 MB
- Stars: 7
- Watchers: 5
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# BeamBender
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
***
BOM Rev. 1B
---------
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](https://www.mouser.com/ProductDetail/192-1NRUV9LQ144PC6I5)
U3 | SiI9022A | QFN-72-1EP_10x10mm_P0.5mm_EP4.7x4.7mm | 165 MHz High Performance HDMI Transmitter [SII9022ACNU](https://www.mouser.com/ProductDetail/842-SII9022ACNU)
U4 | Voltage Regulator 1.8V,
MCP1702T-1802E/CB | SOT-23 | 1.8V Low Drop-Out (LDO) Voltage regulator. [MCP1702T1802E-CB](https://www.mouser.com/ProductDetail/579-MCP1702T1802E-CB)
U5 | Audio A/D Converter AK5720VT | TSSOP-16 | ADC IC 2ch 24bit 96K. [AK5720VT](https://www.mouser.se/ProductDetail/412-AK5720VT)
U6 | Voltage Regulator 1.2V,
MCP1702T-1202E/CB | SOT-23 | 1.2V Low Drop-Out (LDO) Voltage regulator. [MCP1702T1202E-CB](https://eu.mouser.com/ProductDetail/579-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](https://www.mouser.com/ProductDetail/815-ASE-27.000-LR-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](https://www.mouser.com/ProductDetail/815-ASFL1-24.5-EC-T)
X3 | Standard Clock Oscillator 50 MHz, 3.3V LVCMOS | XTAL OSC SMD 7 mm x 5 mm | e.g. [FN5000109](https://www.mouser.com/ProductDetail/729-FN5000109) or [LH736050](https://www.mouser.com/ProductDetail/972-LH736050.000000I)
J1 | FFC & FPC Connectors .5 FPC VT ZIF Type-A | 40 Position FPC connector, Pitch 0.5 mm | [TE Connectivity 4-1734742-0](https://www.mouser.com/ProductDetail/571-4-1734742-0)
J2 | HDMI 1.4 Receptacle Connector 19 Position Surface Mount, Right Angle TH | HDMI Receptacle | [Amphenol 10029449-111RLF](https://www.mouser.com/ProductDetail/649-10029449-111RLF)
J3 | Phone Connectors 3.5 mm, Stereo | 3 Position Through Hole | [Kycon STX-3501-3N](https://www.mouser.com/ProductDetail/806-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](https://www.mouser.com/ProductDetail/651-1725656) or [Aliexpress](https://www.aliexpress.com/item/1005001677869988.html)
D1-D3 | ESD Suppressors / TVS Diodes | U-DFN2510-10 | [D5V0F4U10LP-7](https://www.mouser.com/ProductDetail/621-D5V0F4U10LP-7)
D4 | ESD Suppressor / TVS Diode 1 Ch | SOD-723-2 | [SP1003-01DTG](https://www.mouser.com/ProductDetail/576-SP1003-01DTG) Optional ESD protection for VCC.
D5 | Diode - General Purpose | 0805 | e.g. [TS4148RBG](https://www.mouser.com/ProductDetail/821-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](https://www.mouser.com/ProductDetail/875-HZ0805E601R-10)
C1-C13 | Capacitor 10uF | 1206 |
C14 | Capacitor 0.47uF | 1206 | e.g. [UMK316B7474KL-T](https://www.mouser.com/ProductDetail/963-UMK316B7474KL-T)
C15, C16 | Capacitor 0.1uF | 1206 |
C17 | Polarized Capacitor 100uF | CP_Elec_6.3x7.7 | e.g. [Wurth SMD WCAP-AS5H 100uF](https://www.mouser.com/ProductDetail/710-865230245004)
C18, C19 | Polarized Capacitor 22uF | CP_Elec_5x5.8 | e.g. [Wurth SMD WCAP-AS5H 22uF](https://www.mouser.com/ProductDetail/710-865230342002)
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](https://www.mouser.com/ProductDetail/652-CR0805-J-000ELF)
R7-R14 | 33 Ω | 0603 | e.g. [CR0603-FX-33R0ELF](https://www.mouser.com/ProductDetail/652-CR0603FX-33R0ELF)
R15, R16 | 2k Ω | 0603 | e.g. [CR0603-FX-2001ELF](https://www.mouser.com/ProductDetail/652-CR0603-FX-2001LF)
R17 | 4.3k Ω, 1% tolerance | 0603 | e.g. [CR0603-FX-4301ELF](https://www.mouser.com/ProductDetail/652-CR0603FX-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](https://eu.mouser.com/ProductDetail/652-CAY16A-4701F4LF)
***
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