Bill of Materials (Atom Board)

Introduction

This is a bill of materials for the Atom Video to HDMI Adapter.

Latest schematics are here:

• github
• raw.githack.com

Resistors

All resistors are standard metal film (0.3W or 0.6W) 1%

E.g. Multicomp MCMF series from Farnell

Here's a link to a Farnell Search for all the values below:

Part Description	Supplier	Quantity	Part Ref	Notes
100R		1	R1
330R		2	R23-24
430R		1	R7
470R		10	R8-9,R12-19
1K0		1	R6
1K1		2	R2,4
5K6		1	R10
7K5		2	R3,5
10K		3	R20-22
12K		1	R11
1K Preset	Farnell 9355022	2	RV1-2	check footprint matches Bourns 3386P if substituting

Capacitors

Part Description	Supplier	Quantity	Part Ref	Notes
27pF ceramic		2	C2-3	not normally fitted
47nF multilayer ceramic		2	C5-6	5mm pin spacing
100nF multilayer ceramic		3	C1,7-8	5mm pin spacing
100nF multilayer axial ceramic	Farnell 2860037	4	C10-12,18	min order 10
100nF 0805 multilayer ceramic	Farnell 1907331	3	C9,14-15	min order 5
10uF >16V electrolytic	Farnell 2917914	4	C4,13,16-17	min order 5

Note: C2-3 (on the schematic) do not normally need to be fitted. They are marked as NF on the PCB.

Semiconductors

Part Description	Supplier	Quantity	Part Ref	Notes
SN74LVC1G66DBV	RS 662-2621	1	U1	min order 10 needs to be SOT-23 package
LM319N	RS 533-5749	3	U2-4	TI or ST preferred
XC9572XL-10VQG44C	Farnell 2831287	1	U5
LE33CZ	RS 686-9186	1	U6
3mm Green LED	Farnell 1581123	2	D1-2

Sockets / Connectors

Part Description	Supplier	Quantity	Part Ref	Notes
14 pin IC socket	CPC SC06494	3
2x5 pin male box header	CPC CN17031	1	J1
1x2 pin straight female 0.1" header	Farnell 1593411	1	J2	min order 50
1x6 pin straight male 0.1" header	Farnell 1593415	1	J3	min order 50
1x3 pin right angled male 0.1" header	Farnell 2356177	1	J4	min order 10
2x20 pin straight female 0.1" header	Farnell 2827916	1	J5

Note: J6-10 (on the schematic) do not need to be fitted. They are marked as NF on the PCB.

Cable Assembly

Part Description	Supplier	Quantity	Part Ref	Notes
10 way cable mounting IDC socket with strain relief	Farnell 2215247	2
10 way IDC cable	Farnell 1207436	1m		20cm max length recommended

Miscellaneous

Part Description	Supplier	Quantity	Part Ref	Notes
6mm tactile switch	Spiratronics	3	SW1-3	9.5mm button length*
6mm tactile switch (right angle)	Spiratronics	1	SW4	5.85mm button length*
Evatron EVA73G Enclosure	Rapid Electronics	1
No. 2 x 6.5mm self tapping screws	eBay	5

Notes: (1) Button length is measured from switch base, see data sheet.

Raspberry Pi

You need either a Raspberry Pi Zero or a Raspberry Pi Zero W. There is no benefit to having the Pi Zero W. So you might as well get the cheaper Pi Zero.

Part Description	Supplier	Notes
Raspberry Pi Zero v1.3	Pi Hut	£4.65
40 pin 2x20 hat dual male headers	Pi Hut	£1.00
Micro SD card	PiHut	any size will do
Adafruit Mini HDMI Cable	PiHut
Adafruit Serial Cable	PiHut	optional, for diagnostics

Xilinx Programming Cable

Xilinx USB Platform Cable Clone (eBay seller t-mall2013, price ~£20)