GT 658

PC-BASED TIME INTERVAL ANALYZER

GuideTech's GT 658 PCI is an ultra-fast, high resolution, DC - 400 MHz Time Interval Analyzer (TIA), ideal for most PC-based lab bench (timing) test applications. What makes the GT 658 superior to traditional counters is analogous to the difference between volt meters & digital scopes. While both measure voltage, the scope provides much more information about the dynamics of the signal. This is because our patented TIA substantially increases measurement speed, and the measurements are displayed as a function of time. All of these features, along with the benefit of 'continuous time correlation to a common reference between all measurement time stamps,' enable our TIAs to make measurements that weren't previously possible with traditional counters.

Product Benefits:

Resolution, Accuracy, and Measurement Rate:

• Measurement table in figure 1 (see back) represents each channel. Therefore, both channels may operate alone or simultaneously.
• Multiple boards can be calibrated for an absolute accuracy of +1nS between channels on separate boards

Interface to the PC:

• Memory can be read while measurements are taken, enabling continuous operation.

Service Warranty:

• Full year, full service warranty for upgrades and/or repairs as needed.

Time Res. -- Single Shot 75 pS Time Res. -- Averaged 2 pS Freq. Res. (Digits/S) Up to 10 Time Interval Accuracy (Channel A to B) +/- 0.5 nS Max. Meas. Rate (MSa/S) 3.5

*Specifications are subject to change without notice.

SPECIFICATIONS:

MAIN INPUT CHANNELS:

• No. of channels: 2
• Frequency range: DC - 400 MHz
• Minimum pulse width: 1.5 nS
• Sensitivity:
• 50 m V rms (DC - 100 MHz)
• 100 m V rms (100 MHz - 200 MHz)
• 150 m V rms (200 MHz - 400 MHz)
• Input impedence: 1KΩ / 10 pF, or 50Ω software programmable
• Coupling: DC
• Threshold setting (each channel):
• Range: -5 V to + 8 V
• Resolution: 3.5 m V
• Absolute accuracy: 35 mV or 1% of setting
• Automatic threshold setting is available

EXTERNAL CLOCK AND ARM INPUTS:

• Frequency Range
• External clock: 10 MHz (+/- 100 Hz)
• External arm: DC - 80 MHz
• Minimum pulse width: 6 nS
• Sensitivity: 50 mV rms Ω
• Input impedence: 1K (user may install additional resistor)

TIMEBASE ACCURACY:

• Coupling: DC
• Threshold setting
• Range: - 5 V to + 5 V
• Resolution: 2.5 Mv
• Absolute accuracy: 35 mV or 1% of setting
• Automatic threshold setting available
• Temperature compensated crystal oscillator:
• Temp: 0 - 45 C +/- 10ppm
• Aging: <1 ppm / year

EXTERNAL CONNECTIONS:

• Main Channels: 2, SMA
• External Clock: 1, SMA
• External Arm: 1, SMA