Dual-Channel Arbitrary Function Generator AFG-2225

Wide Frequency Ranges From 1μHz to 25MHz (sine/square wave)

1 μHz Resolution in Full Range

Built-in Standard 120MSa/s, 10bit, 4k Points Arbitrary Waveform for Both Channels

True Dual-Channel Output, CH2 Provides the Same Characteristics as CH1

Couple, Tracking, Phase Operations of Dual Channel are Supported

1% ~ 99% Adjustable Duty Cycle for Square Waveform

High Resolution and Colored TFT LCD with Friendly User Interface

Multiple Editing methods to Edit Arbitrary Waveform Easily

Built-in Standard AM/FM/PM/FSK/SUM/Sweep/Burst and Frequency Counter

USB Host/Device Interface for Remote Control and Waveform Editing

GW Instek is launching AFG-2225, its first basic level dual-channel arbitrary function generator, which provides superior features in its class. Both channels are equipped with same characteristics to fit dual-signal applications such as differential or IQ signaling. The outstanding cost-performance value makes the AFG-2225 a practical instrument to accelerate the development process.

The major features for both channels include 10Vpp output amplitude; 25MHz frequency bandwidth with 1uHz resolution; built-in waveforms of Sine, Square, Ramp (Triangle) and Noise. As to the 1%~99% adjustable duty cycle of Square waveform can be used as pulse signal sources. For the arbitrary waveform, user can edit the 66 built-in waveforms or create a whole new one. Moreover, AFG-2225 carries features of AM/FM/PM/FSK/SUM Modulation, Sweep, Burst and Frequency Counter, which can be applied to various communication fields.

In addition to the intuitive and friendly user interface, the 3.5-inch color LCD displays the comprehensive operation information including the true waveform presented at the output. USB Host and Device interfaces are equipped to link the AFG-2225 with other devices, which provide the flexibility of waveform generation for more practical usages. With link to GW Instek GDS-series Digital Storage Oscilloscopes (DSOs), the waveforms of interest can be captured and reconstructed. User can also use the arbitrary waveform PC software to edit the waveform and then send to AFG-2225 directly, or save the waveform into flash drive and then transfer to AFG-2225.

AFG-2225 Specifications

Channels:
- CH1
- CH2

Waveforms:
- Sine
- Square
- Ramp
- Pulse
- Noise
- ARB

Arbitrary Functions:
- Sample Rate: 120 MSa/s
- Repetition Rate: 60 MHz
- Waveform Length: 4k points
- Amplitude Resolution: 10 bits
- Non-Volatile Memory: 4k points

Frequency Characteristics:
- Range:
  - Sine, Square: 1uHz to 25MHz
  - Ramp: 1MHz
- Resolution: 1uHz
- Accuracy: ±20 ppm
- Stability: ±1 ppm per year
- Tolerance: 1 mHz

Output Characteristics:
- Amplitude Range:
  - 1mVpp to 10 Vpp (into 50Ω)
  - 2mVpp to 20 Vpp (open circuit)
  - 1mVpp to 5 Vpp (into 50Ω) for 20MHz-25MHz
  - 2mVpp to 10 Vpp (open circuit) for 20MHz-25MHz
- Amplitude Accuracy: ±2% of setting ±1 mVpp (at 1 kHz/into 50Ω without DC offset)
- Amplitude Resolution: 1mV or 3 digits
- Flatness (sine wave relative to 1kHz/into 50Ω):
  - ±1% (0.1dB) ≤100kHz
  - ±3% (0.3 dB) ≤5MHz
  - ±5% (0.4 dB) ≤12MHz
  - ±10% (0.9dB) ≤25MHz
- Units: Vpp, Vrms, dBm
- Offset Range:
  - ±5 Vpk ac +dc (into 50Ω)
  - ±10Vpk ac +dc (Open circuit)
  - ±2.5 Vpk ac +dc (into 50Ω) for 20MHz-25MHz
  - ±5Vpk ac +dc (Open circuit) for 20MHz-25MHz
- Offset Accuracy: ±2% of setting + 20mV+0.5% of amplitude
- Waveform Output Impedance: 50Ω typical (fixed), > 10MΩ (output disabled)
- Protection: Short-circuit protected; Overload relay automatically disables main output

Sine Wave Characteristics:
- Harmonic Distortion:
  - -55 dBc (DC~ 200kHz, Ampl > 0.1Vpp)
  - -50 dBc (200kHz~1MHz, Ampl>0.1Vpp)
  - -35 dBc (1MHz~ 5MHz, Ampl>0.1Vpp)
  - -30 dBc (5MHz ~ 25MHz Ampl>0.1Vpp)

Square Wave Characteristics:
- Rise/Fall Time: ≤25ns at maximum output (into 50 Ω load)
- Overshoot: <5%
- Asymmetry: 1% of period +5 ns
- Variable Duty Cycle:
  - 1.0% to 99.0% ≤100kHz
  - 10% to 90% ≤1MHz
  - 50% ≤25MHz

Ramp Characteristics:
- Linearity: <0.1% of peak output
- Variable Symmetry: 0% to 100% (0.1% Resolution)

Pulse Characteristics:
- Period: 40ns to 2000s
- Pulse Width: 20ns to 1999.9s
- Overshoot: <5%
- Jitter: 20ppm +10ns

AM Modulation:
- Carrier Waveforms: Sine, Square, Ramp, Pulse, Arb
- Modulating Waveforms: Sine, Square, Triangle, Upramp, Dnramp
- Modulating Frequency: 2mHz to 20kHz (Int), DC to 20kHz (Ext)
- Depth: 0% to 120.0%
- Source: Internal/External

FM Modulation:
- Carrier Waveforms: Sine, Square, Ramp
- Modulating Waveforms: Sine, Square, Triangle, Upramp, Dnramp
- Modulating Frequency: 2mHz to 20kHz (Int), DC to 20kHz (Ext)
- Peak Deviation: DC to Max Frequency
- Source: Internal/External

Sweep:
- Waveforms: Sine, Square, Ramp
- Type: Linear or Logarithmic
- Start/Stop Freq: 1uHz to Max Frequency
- Sweep Time: 1ms to 500s
- Source: Internal/External/Manual

FSK:
- Carrier Waveforms: Sine, Square, Ramp, Pulse
- Modulating Waveforms: 50% duty cycle square
- Modulation Rate: 2mHz to 100 kHz (INT), DC to 100 kHz(EXT)
- Frequency Range: 1uHz to Max Frequency
- Source: Internal/External

PM:
- Carrier Waveforms: Sine, Square, Ramp
- Modulating Waveforms: Sine, Square, Triangle, Upramp, Dnramp
- Modulation Frequency: 2mHz to 20kHz (Int), DC to 20kHz (Ext)
- Phase deviation: 0° to 360°
- Source: Internal/External

SUM:
- Carrier Waveforms: Sine, Square, Ramp, Pulse, Noise
- Modulating Waveforms: Sine, Square, Triangle, Upramp, Dnramp
- Modulation Frequency: 2mHz to 20kHz (Int), DC to 20kHz (Ext)
- SUM Depth: 0% to 100.0%
- Source: Internal/External

External Trigger Input
- Type: For FSK, Burst, Sweep
- Input Level: TTL Compatibility
- Slope: Rising or Falling(Selectable)
- Pulse Width: >100ns
- Input Impedance: 10ΚΩ, DC coupled

External Modulation Input
- Type: For AM, FM, PM, SUM
- Voltage Range: ±5V full scale
- Input Impedance: 10ΚΩ
- Frequency: DC to 20kHz

Trigger Output
- Type: For Burst, Sweep, Arb
- Level: TTL Compatible into 50Ω
- Pulse Width: >1MHz
- Maximum Rate: TTL Load
- Fan-out: 24
- Impedance: 50Ω Typical

Dual Channel Function
- Phase: -180° ~ +180°
- Synchronize phase: -180° ~ +180°
- Track: CH2=CH1
- Frequency: Frequency(Ratio or Difference)
- Amplitude & DC Offset: Amplitude & DC Offset
- Coupling: DSOlink

Burst:
- Waveforms: Sine, Square, Ramp
- Frequency: 1uHz~15MHz (Sine, Square); 1uHz~1MHz(Ramp)
- Burst Count: 1 to 65535 cycles or Infinite
- Start/Stop Phase: -360 to +360
- Internal Period: 1ms to 500s
- Gate Source: External Trigger
- Trigger Source: Single, External or Internal Rate
- Trigger Delay: NCycle-, Infinite 0s to 655350ns

Frequency Counter
- Range: 5Hz to 150MHz
- Accuracy: Time Base accuracy±1count
- Time Base: ± 20ppm ((23°C±5°C) after 30 minutes warm up
- Resolution: The maximum resolution is: 100nHz for 1Hz, 0.1Hz for 100MHz.
- Input Impedance: 1kΩ/1pf
- Sensitivity: 35mVrms~30Vms (5Hz to 150MHz)

Save/Recall:
- 10 Groups of Setting Memories

Interface:
- USB (Host & Device)

Display:
- 3.5″ TFT LCD

General Specifications:
- Power Source: AC100~240V, 50~60Hz
- Power Consumption: 25 W (Max)
- Operating Environment:
  - Temperature: 18 ~ 28°C
  - Operating temperature: 10 ~ 40°C
  - Relative Humidity: ≤ 80% (0 ~ 40°C)
- Installation category: CAT II
- Operating Altitude: 2000 Meters
- Storage Temperature: -10 ~ 70°C, Humidity: ≤70%
- Dimensions (WxHxD): 266(W) x 107(H) x 293(D)mm
- Weight: Approx. 2.5kg

Accessories:

GTL- x2
Quick Start Guide x1
CD (user manual + software) x1
Power cord x1

Dual-Channel Arbitrary Function Generator AFG-2225