Bnc 1105 Universal Counter Manual de usuario descargar pdf (Pagina 96)

9696

+25 dBm DC ±12V

External Arm Input Specifications

Signal Input Range LVTTL and TTL compatible

Timing Restrictions

Pulse Width > 50 ns

Transition Time < 250 ns

Start-to-Stop Time > 50 ns

Damage Level 12 Vrms

External Arm Input Characteristics

Impedance 1 kΩ

Input Capacitance 17 pF

Start Slope Positive or Negative

Stop Slope Positive or Negative

Notes

1. External Arm is available for all measurements except Peak Volts.

2. External Arm is referred to as External Gate for some measurements.

Internal Time Base Stability

Standard

(0° to 50°C)

High Stability Oven

(1105-opt01)

Temperature Stability

(referenced to 25°C)

± 1 x 10E-6 ± 5 x 10E-9

Aging Rate

Per Day

Per Month

Per Year

± 0.2 x 10E-6 (Typical)

± 1 x 10E-6 (Typical)

± 8 x 10E-10

± 8 x 10E-8

Turn-on stability vs. time (30

min.)

± 2.0 x 10E-8

(refer to 24 hours)

Calibration Electronic Electronic

External Time Base Input Specifications

Voltage Range 200 mVrms to 10 Vrms

Damage Level 12 Vrms

External Time Base Input Characteristics

Threshold 0 V

Impedance 1 kΩ

Input Capacitance 25 pF

Input Frequency 10 MHz

Internal vs. External Time

Base Selection

Manual Select Internal or External

Automatic Internal used when External not present

(default)

Time Base Output Specifications

Output Frequency 10 MHz

Voltage 570 mVpp (0 dBm), typical

Impedance 50 Ω (typical), AC coupled

Measurement Specifications

Frequency, Period

1 mHz to 400 MHz (2.5 ns to 1000 s)

1 2 ... 91 92 93 94 95 96 97 98 99 100 101 ... 196 197

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Bnc 1105 Universal Counter Manual de usuario Pagina 96

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