VCTCXO type and 13 MHz timing reference
The ASVTX-09-B-13.000MHZ is a voltage-controlled temperature-compensated crystal oscillator (VCTCXO) — the voltage-control pin lets the host MCU or radio trim the output frequency in the field, which standard TCXOs cannot do. At 13 MHz, it sits in the centre frequency band most GPS and cellular baseband PHYs expect for their reference clock. Frequency stability is ±2.5 ppm across the operating range of -30°C to 75°C. For context, a standard crystal runs ±30 ppm — the VCTCXO holds the clock within a window tight enough for GPS satellite-acquisition and GNSS modules where timing error directly translates to position error.
Power and output interface
Single 3.3V supply with a maximum draw of 1.5 mA — low enough for battery-backed GPS loggers and portable RF equipment where the oscillator is never fully powered down. The clipped sine wave output delivers a nominal peak-to-peak level that typically requires a simple RC filter before driving a downstream RF mixer or PLL input.
Package, mounting, and sourcing reality
Shipped on tape and reel for automated placement. Listed as Active.