Sansei Showa Co.,Ltd.

Highlights

WDM drivers for Win 98, Win ME & Win XP Visual Basic 6 and Visual C++ example programs High resolution measurements in parts per million (ppm) 0.00125 ppm with 1000 millisecond gate time 0.01250 ppm with 100 millisecond gate time 0.12500 ppm with 10 millisecond gate time 1.25000 ppm with 1 millisecond gate time Micro-controller version with digital outputs (open  collector) used for process control. 7 user selectable cross-over frequencies

Specifications

      Frequency range:
50 ohm input:             1 MHz to 400 MHz (10 kHz to 400 MHz for square wave inputs)
1000 ohm input:        1 MHz to 200 MHz (10 kHz to 200 MHz for square wave inputs)

      Input voltage amplitude range:
50 ohm input: -15 dBm to +16 dBm
1000 ohm input:   1.25 volts peak-to-peak to 20 volts peak-to-peak

      Measurement time:
1 millisecond to 1000 milliseconds

      Frequency resolution:
(1.25 ppm)/(measurement time in milliseconds)

      Frequency accuracy:
+/-Frequency resolution +-accuracy of 10 MHz frequency reference

      Internal frequency reference accuracy:
+/-1 ppm at 25 degrees C when shipped from Sansei Showa

      Frequency reference shift with temperature:
+/-1 ppm for 0 degrees C to 50 degrees C

      External 10 MHz reference input impedance:
50 ohms

      External 10 MHz reference input amplitude:
-10 dBm to +16 dBm

      Dimensions:
175 mm long and 108 mm high

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31000 Bainbridge Road Solon, Ohio 44139 USA · Tel: (440) 248-4440 · Fax: (440) 248-0272 · E-mail info@sanseishowa.com