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Integrated HCMOS TCXOs and VCTCXOs Available in Ultra Small Packaging

6th August 2009

ES Admin

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Fox Electronics, a leading global supplier of frequency control solutions, now offers its integrated SMD HCMOS TCXOs and VCTCXOs in a miniature 3.2 mm x 2.5 mm package size. The new 3.3-volt FOX923CH and FOX923CEH Series oscillators eliminate the need for supplementary external circuitry to obtain a HCMOS output.

Ideal for timing requirements in applications such as radio frequency identification (RFID) readers, utility metering, wireless telecommunications, GPS, data transfer and test and measurement equipment, these new oscillators offer significantly tighter stabilities than traditional oscillators. Stability is ±2.5 ppm over the -30°C to +85°C operating temperature range, ±0.3 ppm over the 3.3-volt (±5%) supply voltage and ±0.2 ppm over the 15 pF load change.

The series offers an input current (IDD) of 6 mA, an output symmetry of 40% to 60% over a frequency range of 9 MHz to 32 MHz and typical phase noise from -145 dBc/Hz at a 10 kHz offset to -85 dBc/Hz at a 10 Hz offset. Maximum reflow soldering temperature is 260°C at 10 seconds.

These RoHS-compliant oscillators have a gold termination finish and a maximum height of 1.2 mm. The FOX923CH TCXOs (temperature-compensated crystal oscillators) feature a no-connect on Pin 1, while the FOX923CEH VCTCXOs (voltage-controlled, temperature-compensated crystal oscillators) include voltage control on Pin 1 to further tune out inaccuracies.