Function Generator
Model: MFG-8219A/8255A

3MHz/5MHz Analog Function Genrator with 100MHz Frequency Counter + AM/FM Modulation
Specification
Frequency Range : 0.3Hz~3MHz/0.5Hz~5MHz(7Rang)
Amplitude : ≥ 20Vpp(into 50Ω load)
Impedance : 50Ω ± 10 %
Attenuator : -20dB ± 1dB
DC Offset : < -5V~ > 5V(into 50Ω load)
Duty Control : 80% : 20 % :80% to 1MHz Continued variable
Display : 6digits LED display
Sine Wave
Distortion : ≤ 1%, 0.3Hz~200KHz THD ≤ 35d / 0.5Hz~100KHz THD ≤30dB
Flatness : < 0.3dB, 0.3Hz~300KHz; < 0.5dB, 300KHz~3MHz
Triangle Wave
Linear : ≥ 98%, 0.3Hz~100KHz; ≥ 95%,100KHz~3MHz/5MHz
Square Wave
Symmetry : ± 2 %, 0.3Hz~100KHz / 1Hz~100KHz
Rise or Fall Time : ≤ 80nS at maximum output ( into 50Ωload )
CMOS Output
Level : 4Vpp ±1Vpp ~14.5Vpp ± 0.5Vpp adjustable
Rise or Fall Time : ≤120nS
TTL Output
Level : ≥ 3Vpp
Fan out : 20TTL load
Rise or Fall Time :  ≤25nS
VCF
Input Voltage : 0V~10V ± 1V(100:1)
Input Impedance : 10KΩ ± 10%
GCV
Output Voltage : To set the voltage between 0V~2V as per different frequency.
Sweep Operation
Sweep/Manual : Switch selector
Sweep/Rate : 100:1 ration max. and adjustable
Sweep/Time : 0.5S~30S adjustable
Sweep/Mode : Lin./Log. Switch selector
Amplitude Modulation
Depth : 0~100%
MOD. Freq. : 400Hz(INT);DC~1MHz(EXT)
Carrier BW : 100Hz~3MHz/5MHz (-3dB)
EXT Sensitivity : ≤10Vpp for 100% modulation
Frequency Modulation
Deviation : 0~ ± 5%
MOD. Freq : 400Hz(INT) ? DC~20KHz(EXT)
EXT Sensitivity : ≤10Vpp for 10% modulation
Frequency Counter
Int./Ext : Switch selector
Range : 0.3Hz~3MHz/5MHz (5Hz~100MHz EXT)
Accuracy : Time base accuracy ± 1count
ime base : ± 20ppm(23°C± 5°C ) after 30minutes warm up
Resolution : The maximum resolution10nHz for 1Hz and 0.1Hz for 100MHz
Input Impedance : 1MΩ /150pF
Sensitivity : ≤35mVrms(5Hz~80MHz); 45mVrms(80MHz~100MHz)
General
Power Source : AC115V/,230V ± 10%, 50/60Hz
Operation Environment : Indoor use, altitude up to 2000m,
Ambient Temperature 0°C ~40°C,
Relative Humidity 80% (Maximum),
Installation category II,
Pollution Degree 2.
Storage temperature & Humidity : -10°C ~70°C ,70%(Maximum)
Accessories : Power code × 1pcs, Testing code × 1pcs, Instruction manual × 1pcs
Dimension: 251(W) × 91(H) × 291(D)mm
Weight : 2.2kgs for MFG-8219A, 2.5kgs for MFG-8255A
Feature
Frequency Range:0.3Hz~3MHz/0.5Hz~5MHz
Waveforms: Sine, Triangle, Square, Ramp, TTL and COMS Output
External Voltage Controlled Frequency(VCF) Function
Duty Cycle Control with Signal Inversion Capability
Variable DC offset Control
Two-Step(-20dB × 2) and Variable attenuator
Built-in 6 Digit Counter with INT/EXT Function up to 100MHz/high resolution
INT/EXT AM/FM modulation
LIN/LOG Sweep Mode
GCV Output for Synchronization