China Resources Micro’s subsidiary Hongxin Micro announced that its automotive radio chip QX300 has shipped over 1 million units after three years of mass production validation, breaking the long‑term monopoly of overseas giants.

QX300 has entered the supply chains of 10 top Tier‑1 automakers including Changan, GAC, and Chery, with over 400,000 units already deployed in vehicles. It now stands as a benchmark for high‑performance, reliable domestic automotive‑grade radio chips.

Key advantages: ultra‑weak signal reception, high‑fidelity audio output, full‑band global coverage, and automotive‑grade wide temperature/voltage tolerance.

Performance highlights:

• Digital low‑IF architecture.

• FM sensitivity: -3dBµV at 110dBµV signal strength.

• Signal‑to‑noise ratio: 74dB – clear reception even in tunnels, highways, urban canyons.

• FM distortion as low as 0.05% , stereo separation 43dB – from basic “hearable” to enjoyable audio.

• Supports FM/AM/LW/SW/WB global bands.

• AEC‑Q100 certified , operating temperature -40°C to 85°C , voltage 1.8V to 5.5V.

Cost advantage: Integrates full PLL‑VCO, FM active separator, RDS/RBDS demodulator, and multipath noise attenuation – eliminates external 10.7MHz ceramic filter, reducing BOM and design complexity.

Hongxin Micro now offers four mass‑production series (TSC1503‑4736, TSC4745, QX201, QX300), covering entry‑level to high‑end automotive grades.

The automotive radio chip market was once dominated by NXP, ST, TI, and Infineon. QX300’s 1 million shipment milestone marks a major breakthrough for domestic technology.

ICgoodFind: Tracking China’s automotive chip breakthroughs – ICgoodFind delivers stable, reliable component supply to power local chip adoption.