The DS4000 is a Maxim digitally controlled temperature-compensated crystal oscillator (DC-TCXO) that features a digital temperature sensor, one fixed-frequency temperature-compensated square-wave output (F1), one programmable temperature-compensated square-wave output (F2), and digital communication for frequency tuning (SDA, SCL).
The Maxim DS4000 is a digitally controlled temperature-compensated crystal oscillator (DC-TCXO) designed for applications such as PLL circuits, GPS, and satellite communications. It features a digital temperature sensor, a fixed-frequency output (F1), and a programmable output (F2). The device supports digital communication via a 2-wire serial interface (SDA, SCL) for frequency tuning and configuration.
| Frequency Stability vs. Temperature | ±1.0ppm from -40°C to +85°C |
|---|---|
| Frequency Stability vs. Supply | ±1.0ppm per Volt |
| Output Rise and Fall Time | 4 ns Max |
| Output Capacitive Load | 10 pF |
The frequency stability is ±1.0ppm from -40°C to +85°C.
The base frequency is tuned using the 2-wire interface by programming the Frequency Tuning Register with two's complement data to add or subtract an offset.