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stellax4

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STELLAx4


4x 8Bit Soundchips/TIAś on a 10x10cm PCB,
controlled from a STM32F4 Microcontroller dipcoref4,
based on Antichambreś TIA Module, with AD9833ś as External programmable Clock, the Frequency-range is expandet…
The Board acts a Motherboard, for

  • 4x Soundchip… AND:

also like the stm32f4_module it provides:

  • Midi-IO - 1x IN, 1x OUT > 3,5Jacks/TRS
  • µSD-Card - 2 Save Patches
  • µController-Socket - 2 Plug the dipcore_f4 in, ask antichambre to get one!
  • J19>AoutNG - to connect VCF or VCAs…
  • J8/9>DOUT & DIN - 4 the UI
  • J15 (JLCD1) which handle from Stock 4x SPI-Displays (SSD1306), - 4 the UI
  • J1>chain a nother STELLAx4 as “SLAVE” to it, to expand polyphony

ready for Pick and Place

–all SMD-Parts are on one SIDE and are presoldered..

Features

* Summed or Individual Audio-Outs, selectable via normal Jumpers
* NTSC or PAL > select via SMD-Solder-Jumper
* User-Interface is C-Language-Programmable

Hardware Requirements

  • 4 x TIA/STELLA [PAL or NTSC…)
  • Soldering Iron - with a Dip that can Handle Thruhole-Parts, solder Paste…
  • 5V from Mini-USB-Plug, or 5V at a 2Pin-Header connected to example a Eurorack Power Source (+5VDC!)
  • dont forget Midi TRS Cables

Shematic

Building

The Design is optimized for Pick and Place > all SMD Parts are on the Top-PCB
The Rest is Thruhole > easy

Rev.A



Rev.B



BOM LCSC

these are the parts which are presoldered by the Pick and Place Machine

CommentDesignatorFootprintLCSC Part Number
100nFCa1,Cb1,Cc1,Cs1,Cd1,Ca2,Cb2,Cc2,C2,Cd2,Ca3,Cb3,Cc3,Cp3,Cpa3,Cd3,Ca4,Cb4,Cc4,Cd4,Cu4,Ca5,Cb5,Cc5,Cd5,Ca6,Cb6,Cc6,Cd60805C49678
47uFCp1,Cpa1,Cp2,Cpa2,Ca7,Cb7,Cc7,Cd71206C96123
10uFCa8,Cb8,Cc8,Cd81206C13585
1N4148WD1SOD123C81598
74HC2G32IC1,IC2,IC3,IC4VSSOP-8_2.3x2mm_P0.5mmC91874
AD9833BRMZNCO1,NCO2,NCO3,NCO4MSOP-10_3x3mm_P0.5mmC9652
OscillatorOSC125×20-4Pole-SMDC90621
220R1,R2,R31206C17958
4K7R41206C17936
1KR51206C4410
1K8Ra1,Rb1,Rc1,Rd1,Ra2,Rb2,Rc2,Rd20805C17398
100K“Ra3,Rb3,Rc3,Rd3,Ra4,Rb4,Rc4,Rd4”0805C17407
74HC595Sa1,Sb1,Sc1,Sd1,S1,Sa2,Sb2,Sc2,Sd2SOIC-16C5947
74HC541-TSSOPU4TSSOP20C406865


BOM Mouser

30,39€ exlc shipping > so better order other stuff too, over 50€ there is free shipping!
Parts for Handsolder:copy list below, and paste in this link

CommentDesignatorMouser Part Nr

647-UFG1H100MDM|8
490-SJ1-3535NG|3
512-6N138M|1
575-1104730841001000|1
200-CES12001TS|3
649-68000-220HLF|1
151-8010-E|12
649-68000-220HLF|1
571-1-2178710-0|5
732-5032CC25.0HJGA3|1
649-68000-220HLF|1
575-1104764041001000|4
798-DM3AT-SF-PEJM5|1

for prototyping i ordered:
490-SJ1-3535NG-GR instead of 490-SJ1-3535NG because it is out of stock - so GREEN sockets for now!

Cable-Connectors for UserInterface and AOUT-Module you will need also:
571-1-2178712-0|8
+ Ribbon Cables for example:
710-63911015521CAB|1

CommentDesignatorMouser Part Nr
10uF-AudioCa9Cb9Cc9Cd9Ca10Cb10Cc10Cd10647-UFG1H100MDM8
3.5JackMidi-I-1Midi-O-1Audio-Out1490-SJ1-3535NG3
6N138U2512-6N138M & 575-11047308410010001
DIPCOREF4_52PU1200-CES12001TS3
Header-1×2-JUMPERSumA-SumD2SumB2RailD2RailA2649-68000-220HLF + 151-8010-E12
Header-1×3AUDIO1SUMMED1AUDIO2AUDIO3AUDIO4649-68000-220HLF1
Header-2×5-MicromatchJLCD1,Jo1,Ji1,J19,J89571-1-2178710-05
Oscillator-5032u7050OSC1732-5032CC25.0HJGA31
PinHead-1×2JBOOT1AIN1J18649-68000-220HLF1
TIATIA1TIA2TIA3TIA4575-11047640410010004
uSD_DM3ATDM3ATU3798-DM3AT-SF-PEJM51

PART Locations


To Do

waiting for christmas
UI-PCBs
Debugging First Version

Community users working on it

  • Phatline = PCB & Shematic, UI-Programming, Documentation…
  • antichambre = Shematic, Porting 8>32Bit, Programming…

Just let a Private message on the forum to user already involved.

Community users interested on it

  • sajtron = Chip composer who maybe wanna buy one…
stellax4.1617741933.txt.gz · Last modified: 2021/04/06 20:45 by phatline