TX-700 Temperature Controlled Crystal Oscillators (TCXO)

Product catalog summary

Overview: The TX-700 is a Temperature Compensated Crystal Oscillator (TCXO) designed for applications such as PCS base stations, land mobile radio, cellular telephony, and radio in the local loop. It features a frequency range of 6.4 - 52 MHz with standard frequencies including 10, 12.8, 16.384, 19.44, 20, and 20.48 MHz. The device is small, low profile, 100% RoHS compliant, and offers electronic frequency control (EFC) as standard.

Performance Specifications: The TX-700 provides frequency stabilities across various conditions, including operating temperature ranges from -40 to +85°C and 0 to +50°C. Initial tolerance, supply voltage change, load change, and aging over 1 and 20 years are specified with precise ppm values. Stratum 3 TCXO specifications are also provided, ensuring stability over long periods and various conditions.

Electrical Characteristics: The standard supply voltage is 3.3 VDC with a current consumption of 6 mA at steady state. RF output is available in clipped sinewave and HCMOS formats, with specific load and signal level requirements. Frequency tuning options include fixed TCXO and adjustable ranges for stability.

Additional Parameters: Phase noise levels are specified at various offsets, and the device weight is 8.0 g. Absolute maximum ratings include a supply voltage of 6.0 V and an operable temperature range of -40 to +85°C.

Packaging and Shipping: The TX-700 is available in different enclosure types with specific dimensions and quantities per reel. Recommended reflow profiles for Pb-Free and Sn-Pb assemblies are detailed, including ramp-up rates and peak temperatures.

Ordering Information: The model code includes options for enclosure type, height, supply voltage, stability code, frequency control, RF output code, and temperature range. Customers are advised to contact the factory for improved stabilities or additional product options.

Contact Information: Vectron International provides contact details for their offices in the USA, Europe, and Asia for further inquiries.

Catalog excerpts

TX-700 Temperature Controlled Crystal Oscillators (TCXO)-3

Lage im GurtPosition in tapePin 1 > Abwickelrichtung Unwinding direction GurtunterseiteTape buttom side *bei W mm nuruntere Lochreihe GurtoberseiteTape upper side byW 24 mm only lower hole line >

Open the catalog to page 3

TX-700 Temperature Controlled Crystal Oscillators (TCXO)-4

Pro le FeaturePb-Free Assembly/Sn-Pb AssemblyPro le FeaturePb-Free Assembly/Sn-Pb Assembly Average ramp-up rate (T > L to T > P )3C/second max.Time 25аC to Peak Temperature8 minutes max.Preheat -Temperature Min T > Smin 150C200аC60-180 secondsTime maintained above-Temperature (T -Temperature Min T > Smax L )-Time (t -Time (min to max) t > S L )217C60-150 secondsTSmax to TL -Ramp-up Rate3аC/second maxTime maintained above-Temperature (T > L )-Time (t > L )217C60-150 secondsTime within 5аC of actual PeakTemperature (t > P )20-40 secondsPeak Temperature (T > P )max 260CRamp-down Rate6аC/ second...

Open the catalog to page 4

TX-700 Temperature Controlled Crystal Oscillators (TCXO)-5

Frequency Model Code700: Enclosure G204 701: Enclosure G211 Frequency Control0: No Tuning 1: 5.0 to ѱ20ppm 2: 8.0 to ѱ20ppm 3: Enable Height 0: 2.5mm Stability Code 256: 2.5ppm 156: ѱ1.5ppm 106: 1.0ppm 807: ѱ0.8ppm 507: 0.5ppm 287: ѱ0.28ppm 157: 0.15ppm Supply Voltage E: 3.3V RF Output Code A: HCMOS F: Clipped Sinewave Temperature Range E: -40ѰC to +85C H: -30аC to +85C J: -20аC to +70C P: 0аC to +50C Notes: Contact factory for improved stabilities or additional product options. Not all options and codes are available at all 1. frequencies.Unless other stated all values are valid after warm-up...

Open the catalog to page 5