Model 645 | 50 MHz
Arbitrary Waveform Function Generator
The BNC Model 645 50MHz Function/Arbitrary Waveform Generator delivers many advanced features and user modes than our previous models, with a price that is designed to meet tough economic constraints. New DDS+ technology embraces advancements in the semiconductor industry and leverages state-of-the-art components for both standard and complex functions. The resulting design is a box for every bench, far more capable than the ARBs and Function Generators of the past. We have even incorporated IP support so a web browser can control the instrument over LAN.
The Model 645 has some significant advances over our 20MHz and 30MHz models. The speed, sample rates, and memory are expanded. The storage of custom waveforms is increased and the tactile front panel controls are easy to manipulate. We understand the broad range of applications and can now provide you, our demanding customers, a product loaded with functionality that represents excellent value. Start your 30 day trial today.
OVERVIEW
FEATURES
50MHz sine, 10MHz Arbitrary Waveform
14-bit, 125MSa/s, 256 K-point ARB
Pattern Generator (16 bits wide, 256K depth)
Pulse, Ramp, Triangle, Noise
AM, FM, PM (PSK), FSK & PWM Modulation
Linear & Logarithmic Sweeps
USB, LAN or GPIB Optional programming
wavePRO Waveform Creation, Editing and Importing
APPLICATIONS
Nanotechnology, Automotive to Power Industry testing
Radar, Medical / Biomedical Simulations
Phase Sync'd signals for MEMS, gyro control
Count rate Simulation (linear or non-linear)
Throughput / Response Measurements
KEY SPECIFICATIONS
50MHz ARB with 14 bit, 125M samples/sec, 256K memory
Display - Illustrates Active Waveform
Sync - Multiple units together, or to an external clock
Functions - Square Wave w/ 10nS Risetimes, ramps, triangles, pulses with adjustable edges to 10nS, noise to 20MHz
Standard Waveforms —Sine, Square, Ramp, Triangle, Pulse, Noise, DC
Built-In ARB Waveforms — Exponential Rise and Fall, Negative Ramp, Sin(x)/x, Cardiac
Total Harmonic Distortion —DC to 20kHz, 0.04%
Square Wave —1uHz to 25MHz
Modulation Modes - AM, Amplitude Modulation; FM, Frequency Modulation; PM, Phase Modulation; PWM, Pulse Width Modulation; FSK, Frequency Shift Keying
Pulse Mode Frequency—10MHz
Pulse Mode Width —10nS res
Arbitrary Mode Frequency — 1uHz to 10MHz
Arbitrary Model Length — 2 to 256K
SPECIFICATIONS
Display Graph mode for visual verification of signal settings Capability
Standard Wave forms
Sine, Square, Ramp, Triangle, Pulse, Noise, DC
Built-in arbitrary waveforms
Exponential Rise and Fall, Negative ramp, Sin (x)/x, Cardiac
WAVEFORM CHARACTERISTICS
Sine
Frequency
1 µHz 50 MHz
Amplitude
Flatness
(Relative to 1 KHz)0.1 dB (< 100 KHz)
0.15dB (<5MHz)
0.3dB (<20 MHz)
0.5 dB (<50 MHz)
Harmonic Distortion
(Unit dBc)DC to 20 KHz
-70 (<1Vpp) -70(≥ 1Vpp)20 KHz to 100 KHz
-65(<1Vpp) -(≥ 1Vpp)100KHz to 1 MHz
-50 (<1Vpp) -45 (≥1Vpp)1 MHz to 20 MHz
-40 (< 1Vpp) -35 (≥1Vpp)20 MHz to 50 MHz
-35(<1Vpp) -30 (≥1Vpp)Total Harmonic Distortion
DC to 20 KHz, Output ≥ 0.5Vpp
THD+N ≤0.06%Spurious
(non-harmonic)DC to 1 MHz
-70 dBc1 MHz to 50 MHz
-70 dBc + 6dB/ octave
Phase Noise
(10K Offset)-115/dBC/ HZ, typical when f ≥ 1MHz, V ≥ 0.1Vpp
Square
Frequency
1µHz to 25 MHz
Rise/ Fall time
< 10 ns
Overshoot
< 2%
Variable
Duty Cicle20% to 80% (to 10MHz)
40% to 60% (to 25 MHz)
Asymmetry
1% of period + 5 ns (@ 50% duty)
Jitter
200 ps
when f ≥ 1MHz, V ≥ 0.1VppRamp, Triangle
Frequency
1 µHz to 200 KHz
Linearity
< 0.1% of peak output
Symmetry
0.0% ~ 100.0%
Pulse
Frequency
500 µHz to 10 MHz
Pulse Witdh
20 ns minimum
10 ns res. (period ≤ 10s)
Variable Edge Time
<10 ns to 100 ns
Overshoot
< 2%
Jitter(RMS)
200 ps
when f ≥ 50KHz, V ≥ 0.1VppNoise
Bandwidth
20 MHz Typical
Arbitrary
Frequency
1 µHz to 10MHz
Length
2 to 256 K
Resolution
14 biys (Including sign)
Sample Rate
125 MSa/ s
Min Rise/ Fall
30 ns typical
Linearity
< 0.1% of peak output
Settling Time
<250 ns to 0.5% of final value
Jitter (RMS)
6ns + 30ppm
Non-Volatile Memory
4 waveforms * 256K points
COMMON CHARACTERISTIC
Frequency
Resolution
1µHz
Amplitude
Range
10mVpp to 10Vpp in 50Ω
20mVpp to 20 20Vpp in Hi-Z
Accuracy
(at 1KHz)±1% of setting ±1mVpp
Units
Vpp, Vrms, dBm
Resolution
4 digits
DC Offset
Range
(Peak AC + DC)±5V in 50Ω typical
±10V in Hi-Z
Accuracy
±2% of offset setting
±0.5% of amplitude settingResolution
4 digits
Main Output
Impedance
50Ω typical
Isolation
42 Vpk maximum to earth
Protection
Short-circuited protected;
overload automatically disables main outputInternal Frequency reference Accuracy
±10ppm in 90 days
±20ppm in 1 year
External Frequency reference
Standard/ Option
Standard
External Frequency Input
Lock Range
10 MHz ± 500 Hz
Level
100 mVpp ~ 5Vpp
Impedance
1KΩ typical, AC coupled
Lock Time
< 2 sec
External
Lock Range
10 MHz
Frequency Output
Level
632mVpp (0dBm), typical
Impedance
50Ω typical, AC coupled
Phase Offset
Range
-360° to 360°
Resolution
0.001°
Accuracy
8 ns
MODULATION
Modulation Type
AM, FM, PM, FSK, PWM, Sweep and Burst
AM
Carrier
Sine, Square, Ramp, Arb
Source
Internal/ external
Internal Module
Sine, Square, Ramp, Triangle, Noise. Arb
Frequency (Internal)
2mHz to 20KHz
Depth
0.0% ~ 120.0%
FM
Carrier
Sine, Square, Ramp, Arb
Source
Internal/ external
Internal Modulation
Sine, Square, Ramp, Triangle Noise, Arb
Frequency (Internal)
2mHz to 20 KHz
Deviation
DC ~ 25MHz
PM
Carrier
Sine, Square, Ramp, Arb
Source
Internal/ external
Internal Modulation
Sine, Square, Ramp, Triangle, Noise, Arb
Frequency (Internal)
2mHz to 20 KHz
Deviation
0.0° to 360°
PWM
Carrier
Pulse
Source
Internal/ external
Internal Module
Sine, Square, Ramp. Triangle, Noise, Arb
Frequency (Internal)
2mHz to 20KHz
Deviation
0% ~ 100% of pulse witdh
FSK
Carrier
Sine, Square, Ramp, Arb
Souce
Internal/ external
Internal Modulation
50% duty cycle Square
Frequency (Internal)
2mHz to 100KHz
External Modulation Input
Voltage Range
±5V full scale
Input Resistance
8.7KΩ typical
Bandwitdh
DC to 20KHz
SWEEP
Waveforms
Sine, Square, Ramp, Arb
Type
Linear or logarithmic
Dirrection
up or down
Sweep Time
1 ms ~ 500 sec
Trigger
Internal, External or Manual
Marker
Falling edge of sync signal (programmable frequency)
BURST
Waveforms
Sine, Square, Ramp, Triangle, Noise, Arb
Type
Couted (1 to 50000 cycles), Infinite, Gated
Start/ Stop Phase
-360° to 360°
Internal Period
1uS ~ 500 Sec
Gated Source
External trigger
Trigger Source
Internal, External or Manual
Trigger Input
Level
TTL Compatible
Slope
Rising or Falling (Selectable)
Pulse witdh
> 100ns
Impedance
> 10KΩ, DC coupled
Latency
< 500 ns
Trigger Output
Level
TTL compatible into ≥ 1 kΩ
Pulse Witdh
> 400 ns
Output Impedance
50Ω typical
Maximum rate
1MHz
Fan-out
≤ 4 Picotest G5100As
PATTERN MODE CHARACTERISTIC
Clock
Maximum Rate
50MHz
Output
Level
TTL compatible into ≥ 2 KΩ
Output Impedance
110 Ω typical
Pattern
Length
2 to 256 K
GENERAL
Power Supply
CAT II - 240V AC ±10%
Power Cord Freq.
50Hz to 60Hz
Power Consumption
50VA max
Operating Enviroment
0°C to 55°C
Storage Temperature
-30°C to 70°C
Interface
(Standard) USB, LAN, (Optional) GPIB
Language
SCPI - 1993, IEEE - 488.2
Dimensions
107 (H) x 224 (W) x 380 (D)mm
Weight
4.08Kg
Safety Designed to
IEC61010-1, EN61010-1, UL61010-1
EMCTested to
EN61326, IEC61000-3, IEC61000-4
Warm-up Time
1 hour
Warranty
1 Year
描述 [描述] 645 50MHz功能/任意波形发生器提供了许多先进的功能和用户模式