2 layers507 × 310.2 mm DTMF append, the printed circuit board in 3D

DTMF append

Size: 507 × 310.2 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 1,136
Nets: 42
Pads: 2,866
Tracks, vias: 6,524, 20
Routed: Yes
KiCad: KiCad 3
Created: 14 Sep 2016
Updated: 14 Sep 2016

Overview

DTMF append is an open-source printed circuit board by ExploreEmbedded, from the ExploreEmbedded/DTMF-Decoder repository on GitHub. It is a 2-layer board of 507 × 310.2 mm with 1,136 parts on 42 nets, routed with 6,524 tracks and 20 vias.

It is built around the LM358 and BC548. Its parts include 292 diodes, 248 resistors, 160 switches, 114 connectors and 70 transistors.

Main components

README

README.md

DTMF-Decoder

Parts

1,136

Qty	Value	Footprint	References
152	P***	1pin	1PIN, 1PIN, 1PIN, 1PIN, 1PIN, 1PIN, 1PIN, 1PIN, 1PIN, 1PIN, 1PIN, 1PIN, 1PIN, 1PIN, 1PIN, 1PIN +136
130	LED	LED-3MM	D1, D1, D1, D1, D1, D1, D1, D1, D1, D1, D1, D1, D1, D1, D1, D1 +114
100	1K	R4	R1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R1 +84
70	BC548	TO92-EBC	Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1 +54
70	CONN_3	bornier3	K3, K3, K3, K3, K3, K3, K3, K3, K3, K3, K3, K3, K3, K3, K3, K3 +54
70	IN4007	D4	D3, D3, D3, D3, D3, D3, D3, D3, D3, D3, D4, D4, D4, D4, D4, D4 +54
70	RELAY1_XL	XL-RELAY-12	K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1 +54
60	CONN_1	1pin	P1, P1, P1, P1, P1, P1, P1, P1, P1, P1, P2, P2, P2, P2, P2, P2 +44
36	470	R4	R1, R1, R1, R1, R1, R1, R1, R1, R1, R1, R10, R10, R10, R10, R10, R10 +20
32	56K	R4	R1, R1, R1, R1, R1, R1, R1, R1, R2, R2, R2, R2, R2, R2, R2, R2 +16
20	10k	SIL-3_POT_XL	RV1, RV1, RV1, RV1, RV1, RV1, RV1, RV1, RV1, RV1, RV1, RV1, RV1, RV1, RV1, RV1 +4
20	470r	R4	R2, R2, R2, R2, R2, R2, R2, R2, R2, R2, R3, R3, R3, R3, R3, R3 +4
20	CONN_3	SIL-3	K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1, K1 +4
20	CONN_4	SIL-4	P1, P1, P1, P1, P1, P1, P1, P1, P1, P1, P1, P1, P1, P1, P1, P1 +4
16	10uF	C1V5	C1, C1, C1, C1, C1, C1, C1, C1, C2, C2, C2, C2, C2, C2, C2, C2
16	5.6V	D3	D1, D1, D1, D1, D1, D1, D1, D1, D2, D2, D2, D2, D2, D2, D2, D2
10	0.1uF	C1	C1, C1, C1, C1, C1, C1, C1, C1, C1, C1
10	10k	R4	R3, R3, R3, R3, R3, R3, R3, R3, R3, R3
10	47k	R4	R1, R1, R1, R1, R1, R1, R1, R1, R1, R1
10	CONN_6	SIL-6	P1, P1, P1, P1, P1, P1, P1, P1, P1, P1
10	LM358	DIP-8__300	U1, U1, U1, U1, U1, U1, U1, U1, U1, U1
10	LM358	DIP-8__300_ELL	U1, U1, U1, U1, U1, U1, U1, U1, U1, U1
10	MQ_XL	mq-6_xl	U2, U2, U2, U2, U2, U2, U2, U2, U2, U2
10	RX	LED-5MM	D1, D1, D1, D1, D1, D1, D1, D1, D1, D1
10	TX	LED-5MM	D2, D2, D2, D2, D2, D2, D2, D2, D2, D2
8	100K	R4	R8, R8, R8, R8, R8, R8, R8, R8
8	150k	R4	R9, R9, R9, R9, R9, R9, R9, R9
8	1N14148	D3	D3, D3, D3, D3, D3, D3, D3, D3
8	3.5795MHz	HC-18UV	X1, X1, X1, X1, X1, X1, X1, X1
8	3.5MM_JACK	SparkFun-AUDIO-JACK	U1, U1, U1, U1, U1, U1, U1, U1
8	330K	R4	R5, R5, R5, R5, R5, R5, R5, R5
8	47K	R4	R6, R6, R6, R6, R6, R6, R6, R6
8	68K	R4	R7, R7, R7, R7, R7, R7, R7, R7
8	AUDIO_IN	SIL-2	P2, P2, P2, P2, P2, P2, P2, P2
8	MT8870P	DIP-18__300_ELL	IC1, IC1, IC1, IC1, IC1, IC1, IC1, IC1
8	OUTPUT	SIL-5	P3, P3, P3, P3, P3, P3, P3, P3
8	POWER 5V	bornier2	P1, P1, P1, P1, P1, P1, P1, P1
8	Q1	LED-3MM	D4, D4, D4, D4, D4, D4, D4, D4
8	Q2	LED-3MM	D5, D5, D5, D5, D5, D5, D5, D5
8	Q3	LED-3MM	D6, D6, D6, D6, D6, D6, D6, D6
8	Q4	LED-3MM	D7, D7, D7, D7, D7, D7, D7, D7
8	int	LED-3MM	D8, D8, D8, D8, D8, D8, D8, D8
8	pwr	LED-3MM	D9, D9, D9, D9, D9, D9, D9, D9

Questions

How big is the DTMF append PCB?

It measures 507 × 310.2 mm and has 2 copper layers, 1.6 mm thick.

What parts does the DTMF append use?

1,136 parts, built around the LM358 and BC548. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the DTMF append KiCad files?

From the ExploreEmbedded/DTMF-Decoder repository on GitHub, at the commit this page was made from: the board is Hardware Design/DTMF-append.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.

Can I use the DTMF append design in my own project?

Its repository states no licence, so its author keeps all rights: ask ExploreEmbedded before reusing the design.

Project files

Show this board on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/boards/exploreembedded-dtmf-decoder-dtmf-append" title="DTMF append in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/boards/exploreembedded-dtmf-decoder-dtmf-append.jpg" alt="DTMF append" width="1200" height="900">

A picture that opens the board, for a README

[![DTMF append](https://pcbkit.io/embed/boards/exploreembedded-dtmf-decoder-dtmf-append.jpg?size=s)](https://pcbkit.io/boards/exploreembedded-dtmf-decoder-dtmf-append)

Source

Repository: ExploreEmbedded/DTMF-Decoder
Board file: Hardware Design/DTMF-append.kicad_pcb
Commit: ea5687d
Licence: Not stated

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