MZ80AD724
About the MZ80AD724 PCB
MZ80AD724 is an open source PCB design by Board-Folk, published on GitHub. It is a 2-layer board measuring 119 × 63.1 mm, with 28 components from 22 distinct parts.
Other key parts include the AD724JRZ. By type, the board carries 10 capacitors, 7 resistors, 3 connectors, 1 IC and 1 diode.
It belongs with the audio designs in this gallery.
From the project
Sharp MZ-80K Replica Public
A better composite output board using the AD724 chip. This has audio line out only, and does not include the audio amplifier.
The simple composite output on the original board (MZ80AV) didn't look so good on many screens/televisions, so tried this and it's greatly improved. It has the PAL/NTSC colour oscillator, and as the MZ80 is mono out, included 3 potentiometers to include a select of the colour outputted to the screen.
Main components on the MZ80AD724
MZ80AD724 bill of materials (BOM)
28 components, 22 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AD724JRZ | SOIC-16W_7.5x10.3mm_P1.27mm | IC150 |
| 1 | VIDEO | CN2 | CN2 |
| 1 | LINE OUT | STEREO | J2 |
| 1 | COMPOSITE | RCA2 | J150 |
| 1 | 3w_Jumper | PinHeader_1x3_P2.54mm | RS153 |
| 1 | RED | Short Multi Pot | RV157 |
| 1 | GREEN | Short Multi Pot | RV158 |
| 1 | BLUE | Short Multi Pot | RV159 |
| 1 | 78L05 | TO-92_Inline_Wide | VR1 |
| 1 | 4.43MHz | Crystal | XTAL150 |
| 1 | 5V | LED_D3.0mm | D2 |
| 1 | 100uF | Electrolytic_P3.85mm | C6 |
| 1 | 470uF 16V | Electrolytic_P3.85mm | C19 |
| 1 | 5-20pF | CVN6500 | C151 |
| 4 | 100nF | Ceramic_P5.08mm | C153, C154, C155, C157 |
| 1 | 16pF | Ceramic_P3.76mm | C156 |
| 1 | 10uF | Electrolytic_P2.54mm | C158 |
| 1 | 220uF | Electrolytic_P3.85mm | C159 |
| 2 | 1K | Resistor_P12.70mm | R3, R5 |
| 3 | MCF 0.25W 3K3 68R Multicomp Pro | Resistor_P12.70mm | R166, R167, R168 |
Show 2 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MCF 0.25W 3K3 10M Multicomp Pro | Resistor_P12.70mm | R172 |
| 1 | MCF 0.25W 3K3 75R Multicomp Pro | Resistor_P12.70mm | R173 |
MZ80AD724 design files
The KiCad project lives in the Board-Folk/Sharp-MZ-80K repository on GitHub; these links point at the commit this page was built from.
MZ80AD724: common questions
How big is the MZ80AD724 PCB?
The MZ80AD724 measures 119 × 63.1 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the MZ80AD724?
28 components, from 22 distinct parts. The full bill of materials is listed on this page.
Where can I download the MZ80AD724 design files?
From the Board-Folk/Sharp-MZ-80K repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the MZ80AD724 design in my own project?
The repository has no license, so all rights stay with Board-Folk. Use it as a reference, and ask the author before reusing the design.
More boards in Sharp-MZ-80K
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MZ80MROM
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