Hudson, N.H. Vectron International has launched its smallest temperature compensated crystal oscillator (TCXO) in a 3.2 x 2.5-mm package. The VTM3 TCXO offers similar phase noise performance to Vectron's larger VTC4 and VTC1 TCXOs in a 50 percent smaller package without compromising phase noise performance and stability.
A key challenge in miniaturizing any oscillator platform is that, typically, oscillator phase noise increases as its size is reduced, said Vectron. By leveraging advanced crystal design and simulation techniques, Vectron was able to design the VTM3 with phase noise performance comparable to its previous VTC1 and VTC4 generations (with a phase noise floor of -155 dBc/Hz) in a significantly smaller package. At the same time, the new VTM3 offers improvements by providing enhanced frequency stabilization in an expanded temperature range, enabling the stabilization of frequencies between 8 MHz to 45 MHz in a temperature range of -30°C to 80°C at equal to or better than +/-0.5 ppm.
The VTM3 TCXO is optimized for use in a wide range of wireless RF applications including GPS, in-car navigation, pilot locator, security/tracking, WLAN, WiMAX and WiFi base stations, Bluetooth devices, digital cameras, PHS, RFID, test equipment, and wireless meter readers.
Generally available as a fixed-frequency TCXO, the VTM3 can be ordered with a voltage controlled crystal oscillator (VCTCXO) function for applications such as seismic exploration, base station, video transport and WiMAX timing, where it will be used in a PLL or where the output frequency needs fine-tune adjustments. With typical current consumption as low as 1 mA, the TCXO is well-suited for battery-powered applications such as PDAs, satellite radios, mobile TV, point-to-point radio and handsets.
Product information: VTM3 TCXO
Vectron International, 1-88-VECTRON-1, www.vectron.com