Nippon Denpa Kogyo Co., Ltd. (Headquarters: Shibuya-ku, Tokyo; Representative Director, President and CEO: Hiromi Kato) has developed a fundamental and high-frequency (156–625 MHz) differential output crystal oscillator for optical transceiver modules (800 Gbps/1.6 Tbps) designed for AI data centers. This product offers high precision, low phase jitter, and a compact design. We are pleased to announce that samples of the 625 MHz version are now available.

Product Features

・Supports fundamental and high-frequency signals (156 to 625 MHz)

・Achieves narrow deviation (Max. ±20 × 10⁻⁶) to meet long-distance transmission requirements

・Achieves low phase jitter (Typ. 18 fs) (625 MHz, 3.3 V)

・Compact size (2.0 × 1.6 × 0.66 mm, 2.5 × 2.0 × 0.74 mm)

・Supports high temperatures up to +105°C

Applications & Markets

・Data centers (AI servers, etc.)

・Optical transceiver modules

・Clocks for DSPs

Sample & Mass Production Timeline

・625 MHz models: Scheduled to begin shipping in March 2026

　(312.5 MHz models: Currently in mass production)