As a follow-up to my AGZ project, I have once again redesigned original Game Boy hardware, this time with the Game Boy Color. Following my naming conventions for the AGZ, I've dubbed the PCB the "CGZ-CPU-01", and the console itself the "CGZ-001". This is a one-off production of what I envisioned as my ideal GBC.
Unlike my AGZ repo, I do not have a lengthy write-up for this design, since I didn't have any grievances with the original GBC hardware and my only design goal was to bring the same features of the AGZ over to the Game Boy Color.
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4-layer 1.2mm PCB, purple silkscreen, ENIG surface finish
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GBC CPU
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1700mAh LiPo battery
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USB-C rechargeable with charge LED indicator
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Supports safe charge-and-play
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On-board battery protections – short-circuit, over-charge, over-discharge, over-temperature
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Completely redesigned power delivery
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Power switch debouncing
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5V boost converter
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3.3V buck converter
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Full ground plane
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Completely redesigned audio circuits
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Stereo volume potentiometer
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Dedicated speaker and headphone amplifiers
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1W 8-ohm speaker
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Tactile buttons
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Snaptron tactile domes for DPAD and A/B
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Tactile switches for START/SELECT
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FunnyPlaying Retro Pixel IPS 2.0 display
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Hand-polished atomic purple shell
Thanks to all the members of the Gameboy Discord community for their continued support.
Special thanks to HDR for compiling the CGB circuit schematics and board scans.
Special thanks to b23n for sharing his shell polishing method.