Bk-precision 4078 - Manual Bedienungsanleitung Seite 9
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Output Leakage
Approximately 10 mA can be present at the output
BNC connector when unit is powered on and the
output is off
Waveform
Characteristics
Total Harmonic Distortion (sine)
DC-20 kHz, -65 dBc
20 kHz-50 kHz, -60 dBc
50 kHz-100 kHz, -50 dBc
100 kHz-10 MHz, -45 dBc
10 MHz-25 MHz, -35 dBc
Spurious (sine)
DC-1 MHz < -60 dBc
Rise/Fall Time (square, pulse)
< 12 ns (10% to 90%) at full amplitude into 50 Ω
Variable Duty Cycle
20% to 80% to 5 MHz (square)
40% to 60% to 10 MHz (square)
50% >10 MHz (square))
Variable Symmetry
10%-90% to 5 MHz (triangle)
Symmetry at 50%
< 1 % + 5 ns
Linearity (triangle, ramp)
<0.1% of peak output (1 µHz to 250 kHz)
Pulse Width
(period 10 μs - 0.1 μs)
20 ns to < ( Period -20 ns )
(10 ns resolution)
Variable Edge Time
(period 100 μs - 0.16 μs)
100 ns to Width/0.625 (50 % duty cycle)
10 ns resolution
Operating Modes
Continuous
Output continuous at programmed parameters
Triggered
Output quiescent until triggered by an internal or
external trigger, then one waveform cycle is generated
to programmed parameters. Up to 10 MHz trigger rate
for ARB waveforms and 5 MHz in DDS mode
Gate
Same as triggered mode, except waveform is executed
for the duration of the gate signal. The last cycle
started is completed
Burst
2-999,999 cycles
Phase
-360.0 to +360 degrees with 0.1 degree resolution
Trigger Source
Trigger source may be internal, external or manual.
Internal trigger rate 0.01 Hz-1 MHz (1 µs – 100 s)
Modulation
Characteristics
Amplitude
Modulation
Internal
0.1 Hz-20 kHz sine , square or triangle waveform
variable modulation from 0% to 100%
External
5 Vp-p for 100% modulation, 10 kΩ input impedance
0.01 Hz – 50 KHz bandwidth
Frequency
Modulation
Internal
0.1 Hz-20 kHz sine wave, square or triangle
External
5 Vp-p for 100% deviation, 10 kΩ input impedance,
0.01 Hz – 50 kHz bandwidth
Sweep
Characteristics
Sweep Shape
Linear and Logarithmic, up or down
Sweep Time
20 ms to 500 s
Sweep Trigger
internal, external, continuous or burst
Inputs and
Outputs
Trigger IN
TTL Compatible
Maximum rate 10 MHz in ARB mode, 3 MHz in DDS
mode
Minimum width 50ns
Sync OUT
TTL pulse at programmed frequency, 50ohms source
impedance
Modulation IN
5 Vp-p for 100% modulation
10 KΩ input impedance
DC to >50 kHz minimum bandwidth
Marker Out
Positive TTL pulse user programmable in Arbitrary
waveform, 50 Ω source impedance
Reference IN-OUT
10 MHz, TTL compatible, input or output, for external
unit synchronization 50 Ω output impedance and 1 kΩ
input
- Safety Summary 3
- Table of Contents 5
- Section 1 7
- Specifications 8
- Modulation Combinations 10
- Section 2 11
- 2.6 Power Requirements 12
- 2.7 Grounding Requirements 12
- 2.8 Signal Connections 12
- 2.9 RS-232 Connection 12
- 2.11 GPIB Address 13
- 2.10 RS-232 Configuration 13
- Section 3 15
- 3.2 Display Window 16
- 3.3 Front Panel Controls 17
- 3.4 Back Panel Controls 17
- 3.5 Output connectors 18
- 3.6 MENU Keys 18
- 3.6.1 WAVEFORM Keys 20
- 3.6.2 MODE Key 22
- 3.6.3 ARBITRARY Key 23
- Start Address 25
- Markers 25
- 3.6.4 Arbitrary EDIT Menu 26
- 3.6.5 PULSE Menu 29
- 3.6.6 UTILITY Key 29
- 3.6.8 MODULATION Key 32
- 3.7 ON Key 34
- 3.8 Cursor Movement Keys 34
- 3.9 Rotary Input Knob 34
- 3.10 Power-On Settings 34
- 3.11 Memory 35
- 3.12 Displaying Errors 35
- 3.14 Examples 36
- 3.14.6 Using Voltage Offset 39
- 4.1 Overview 40
- 4.2 Device State 41
- 4.4 Device Address 41
- 4.5.1 The Input Buffer 42
- 4.5.2 The Output Queue 42
- 4.5.3 Response Messages 42
- 4.5.4 Coupled Commands 42
- 4.6 Block Data (GPIB Only) 43
- 4.8 Instrument Reset 43
- 4.9 Self Test 43
- 4.10 Command Syntax 43
- 4.11 Status Reporting 47
- 4.11.4 The Error Queue 48
- 4.11.5 Error Codes 48
- 4.12 Common Commands 51
- 4.13.1 SOURce Subsystem 55
- 4.13.1.2 Amplitude 57
- 4.13.1.3 Offset 57
- 4.13.1.5 Function 58
- 4.13.1.6 Point Rate 59
- 4.13.1.7 AM modulation 59
- 4.13.1.8 FM modulation 61
- 4.13.1.9 FSK modulation 62
- 4.13.1.10 Sweep control 64
- 4.13.1.11 PHASe adjust 66
- 4.13.1.12 PULSe setting 66
- 4.13.1.13 Duty Cycle 67
- 4.13.2 OUTPut Subsystem 68
- 4.13.2.1 Output State 68
- 4.13.3 Trigger Subsystem 68
- 4.13.3.1 Trigger Mode 69
- 4.13.3.2 Trigger Source 69
- 4.13.3.3 Burst Count 69
- 4.13.4 Arbitrary Subsystem 70
- 4.13.4.1 Point Rate 71
- 4.13.4.2 Address 71
- 4.13.4.3 Data 72
- 4.13.4.4 Line Draw 73
- 4.13.4.5 Clear 73
- 4.13.4.6 Copy 74
- 4.13.4.10 Start Address 76
- 4.13.4.11 Wavelength 76
- 4.13.4.12 Marker Address 76
- 4.13.4.13 Marker Length 77
- 4.13.4.14 Marker State 77
- 4.13.4.15 Save 77
- 4.13.5 Status Subsystem 78
- 4.13.5.1 Status Preset 78
- 4.13.5.2 Error Queue Read 78
- 4.13.5.3 Error Queue Enable 78
- 4.13.6 System Subsystem 81
- 4.13.6.3 SCPI Version 82
- 4.13.6.4 Security 82
- 4.13.6.5 Power-on Buffer 82
- 4.14.2 DCL - Device Clear 83
- 4.14.4 LLO - Local Lockout 83
- 4.15 SCPI Command Tree 84
- 4.15.4 :TRIGger Subsystem 85
- 4.15.5 :ARBitrary Subsystem 85
- 4.15.6 :STATus Subsystem 86
- 4.15.7 :SYSTem Subsystem 86
- 4.17.1 General 90
- Section 5 94
- 5.3 Performance Tests 95
- 5.3.3 Offset Accuracy 97
- 5.3.4 Sine Distortion 97
- 5.3.7 Operating Modes 98
- 5.3.10 RS232 Capability 100
- Performance Tests Results 101
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