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I looked at a random TI headphone amp chip [1] for portable gaming systems. It's tiny (3mm×3mm) and uses CMOS for low power consumption. Internally it has a cha
by kens 7y ago
I looked at a random TI headphone amp chip [1] for portable gaming systems. It's tiny (3mm×3mm) and uses CMOS for low power consumption. Internally it has a charge pump to generate the voltages it needs from a wide power supply range. The charge pump also allows the output to be centered around ground so DC blocking capacitors can be omitted. The chip includes click and pop suppression. Inexplicably it is Windows Vista compliant. So audio chips have progressed a lot since this Nintendo chip.
[1] http://www.ti.com/product/TPA6132A2/datasheet http://www.ti.com/product/TPA6132A2/datasheet
- Stierlitz 7y ago“MicrosoftTM Windows VistaTM Compliant” Remember when the software had to comply with the hardware instead of the other way round :]
- monocasa 7y agoI feel like they've had an incestuous relationship as long as we've had both. It is a bit goofy to call out a amplifier without even a SPI or I2C bus for config though as compatible. I'm not sure how Vista would know the difference between this and a tube amp.
- cesarb 7y agoMicrosoft has long had PC design guidelines, starting with PC 97 in the late 90s. "Windows Vista Compliant" would mean it meets the functional and performance requirements found on the hardware design guidelines for Windows Vista.
- monocasa 7y agoI understand that. It's just weird that they'd specify anything for components like that.