Tt audio pmod
About the Tt audio pmod PCB
Tt audio pmod is an open source PCB design by joaln27, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 45.7 × 20.3 mm, with 18 components from 18 distinct parts.
Other key parts include the W25Q128JVSIM. By type, the board carries 6 capacitors, 4 connectors, 4 resistors, 1 IC and 1 inductor.
It belongs with the audio designs in this gallery.
From the project
QSPI flash + PSRAM + audio cartridge Pmod for TinyTapeout — a drop-in remix of the stock QSPI Pmod with sigma-delta audio (RC filter + amp + jack) on the CS2 pin. KiCad, JLC-assemblable
This Pmod is designed to play mono PWM audio from out[7] or bidir[7], while allowing a second Pmod to be plugged in, passing through bidir[0-6] or out[0-6].
The design has a low pass filter, to allow a large range of audio to be played the cutoff frequency is quite high. It is therefore recommended that the PWM frequency is at least 200kHz to get good results.
Main components on the Tt audio pmod
Tt audio pmod bill of materials (BOM)
18 components, 18 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | W25Q128JVSIM 74LVCE1G126SE-7 | SOT-353_SC-70-5 | U1 |
| 1 | 10129382-912001BLF | PinHeader_2x06_P2.54mm_PMODPeriph2B | J1 |
| 1 | Female header | PinSocket_2x06_P2.54mm_Vertical_Column | J2 |
| 1 | Male header | PinHeader_1x03_P2.54mm_Vertical | J4 |
| 1 | PJ-320B | BOOMELE_PJ-320B | J5 |
| 1 | ZL-YDW1407-4005P-7.6 | BUZ-TH_BD14.0-P7.60-D0.7-FD | PIEZO1 |
| 1 | 3362P-1-201LF | TRIM_3362P-1-102 | RV1 |
| 1 | MLF2012-3R3K | L_0805_2012Metric | L1 |
| 1 | 0402YC104KAT2A 100nF | C_0603_1608Metric | C1 |
| 1 | C0402C105M9PAC 47uF | C_0805_2012Metric | C2 |
| 1 | 10uF | C_0805_2012Metric | C3 |
| 1 | 100nF | C_0603_1608Metric | C4 |
| 1 | 0402YC104KAT2A 47nF | C_0603_1608Metric | C5 |
| 1 | C0402C105M9PAC 100nF | C_0603_1608Metric | C6 |
| 1 | 0402WGF1002TCE 120R | R_0603_1608Metric | R1 |
| 1 | 0402WGF1002TCE 33R | R_0603_1608Metric | R2 |
| 1 | 0402WGF1002TCE 470R | R_0603_1608Metric | R3 |
| 1 | 120R 1k | R_0603_1608Metric | R4 |
Tt audio pmod design files
The KiCad project lives in the joaln27/cartridge_pmod repository on GitHub; these links point at the commit this page was built from.
Tt audio pmod: common questions
How big is the Tt audio pmod PCB?
The Tt audio pmod measures 45.7 × 20.3 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Tt audio pmod?
18 components, from 18 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Tt audio pmod design files?
From the joaln27/cartridge_pmod repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Tt audio pmod design in my own project?
Yes, under the terms of its Apache-2.0 license, which joaln27 chose for the repository.
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