# Accusilicon

> Accusilicon (Guangzhou Ruixin Microelectronics Co., Ltd. / 广州睿芯微电子有限公司) is a fabless
> mixed-signal semiconductor company in Guangzhou, China. It designs ultra-low phase noise
> XO/VCXO/TCXO and OCXO oscillator ICs, clock ICs and modules, RF/analog switch ICs,
> mobile-interface protection ICs, ADC/DAC converters, digital audio processor (DSP) and audio
> ICs, and spectral image sensor chips, plus clock stability analyzers and custom ASIC/SoC,
> module, system and clock design services.

## API surface

Accusilicon publishes **no public API**. It is a hardware component supplier with no developer
program, developer portal, API reference, SDK, package, MCP server, agent card or
machine-readable API description. Probed 2026-09-06: `/llms.txt`, `/openapi.json`,
`/swagger.json`, `/apis.json`, `/apis.yml` and every `/.well-known/` discovery path on
accusilicon.com returned HTTP 404. This file is generated by API Evangelist from the public
company record, not published by Accusilicon.

## Company

- [Website](https://accusilicon.com/): Corporate site (Chinese only; the `/en/` path 404s).
- [About](https://accusilicon.com/cn/accusilicon/about_us): Company background, founded July 2014, Guangzhou Huangpu district.
- [Contact](https://accusilicon.com/cn/accusilicon/contact_us): Sales and general enquiries; info@accusilicon.com.
- [Quality assurance](https://accusilicon.com/cn/accusilicon/qa): RoHS / HF / REACH compliance and ISO 9001:2015 + ISO 14001:2015 management-system certificates.
- [Terms and conditions](https://accusilicon.com/cn/accusilicon/terms_conditions): Website terms of use.
- [Careers](https://accusilicon.com/cn/accusilicon/careers): Guangzhou, Xi'an and Shanghai offices.

## Products and services

Verified live 2026-09-06; several product pages linked from the site navigation return 404 at
the origin (clock_ic, xo, ocxo, protect_ic, adda_ic, dsp_ic, clock_meas) and are omitted.

- [Crystal oscillator ICs](https://accusilicon.com/cn/asic_and_module/xo_ic)
- [Switch ICs](https://accusilicon.com/cn/asic_and_module/switch_ic)
- [Audio ICs](https://accusilicon.com/cn/asic_and_module/audio_ic)
- [Spectrum / spectral image sensor ICs](https://accusilicon.com/cn/asic_and_module/spectrum)
- [Modules](https://accusilicon.com/cn/asic_and_module/modules)
- [ASIC and SoC custom design](https://accusilicon.com/cn/services/asic)
- [Clock design services](https://accusilicon.com/cn/services/timing)

## API Evangelist profile

- [apis.yml](https://raw.githubusercontent.com/api-evangelist/accusilicon/refs/heads/main/apis.yml): This company's APIs.json record.
- [Domain security probe](https://raw.githubusercontent.com/api-evangelist/accusilicon/refs/heads/main/security/accusilicon-domain-security.yml): TLS/HSTS/DNSSEC/CAA/SPF/DMARC observations.
- [Well-known probe](https://raw.githubusercontent.com/api-evangelist/accusilicon/refs/heads/main/well-known/accusilicon-well-known.yml): Recorded absence of every discovery document.