Radio Shack/Archer Code to Speech
I had some old Radio Shack/Archer speech processing chips lying around that I’d been wanting to play around with for quite some time. So, I began by bread-boarding them and then designed a PCB layout in Eagle. The chips used are the CTS256A-AL2 and SP0256. The data sheets for these chips are pretty old and hard to read but I was able to decipher enough out of them to get the circuit working.
CTS256A-AL2 data sheets:
- SP0256 Narrator Speech Processor
- Archer SP0256-AL2
- sp0256a
- SP0256B_Datasheet
- SP-0250_Datasheet
- SP0250_Applications_Manual
I used Eagle to develop a schematic based on the data sheets but omitted the audio amplifier since I was using an external one and couldn’t seem to get satisfactory performance from the circuit used in the data sheets.
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Hi Ken! I had these chips for a long time and now I’m planning on using theme for a DIY Robot that I started building with my son. It would be useful if you can provide me the Eagle schematic file.
Thanks and regards,
Jose Luis.
Sure. I’ll locate them and attach them to this post.