NF WF1973, Инструкция по эксплуатации

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142
7. SPECIFICATIONS
MULTIFUNCTION GENERATOR
7.11 Other I/Os
External 10 MHz frequency reference input
Frequency reference selection External reference enable, disable (selectable)
Input voltage
0.5 Vp-p to 5 Vp-p
Maximum allowed input 10 Vp-p
Input impedance 1 k Ω , unbalanced, AC coupled
Input frequency 10 MHz (±0.5% (±50 kHz))
Input waveform Sine wave or square wave (50 ±5% duty)
Input connector Rear panel, BNC receptacle
Frequency reference output (for synchronizing multiple WF1973, WF1974 units)
Output voltage 1 Vp-p/50
Ω
square wave
Output impedance 50 Ω , AC coupled
Output frequency 10 MHz
Output connector Real panel, BNC receptacle
External addition input
Addition gain
×
2,
×
10, off (selectable)
During
×
2, the maximum output voltage range is fixed
to 4 Vp-p, and during
×
10, 20 Vp-p.
Off during sequence oscillation
Input voltage − 1 V to +1 V
Maximum allowed input ±2 V
Input frequency DC to 10 MHz ( − 3 dB)
Input impedance 10 k
Ω
, unbalanced
Input connector Front panel (WF1973) / rear panel (WF1974)
BNC receptacle
Shared with external modulation input, cannot be used
during external modulation
Multi-I/O
Applications Sweep control, sequence control
Input voltage TTL level (low level of 0.8 V or lower, high level of 2.6 V
or higher. Pulled up to +5 V through 10 k
Ω
)
Maximum allowed input − 0.5 V to +5.5 V
Output voltage TTL level (low level of 0.4 V/open or lower, high level of
2.7 V/open or higher)
Connector Rear panel, Mini-Dsub 15-pin multiconnector