SPECIFICATIONS FREQUENCY All waveforms are derived from a crystal clock using Direct Digital Synthesis. Frequency Range: 1mHz to 10MHz or 20MHz (except triangle) Resolution: 6 digits or 1mHz Accuracy: <?10ppm for 1 year, 18oC to 28oC Tempco.: Typically <1ppm/oC outside of 18oC to 28oC WAVEFORMS Sinewave Range: 1mHz to 10MHz/20MHz Resolution: 6 digits or 1mHz Distortion: <0.3% THD to 20kHz (typically 0.1%), <-45dBc to 300kHz, <-35dBc to 20MHz (typically <-40dBc) Spurii: Non harmonically related spurii <-55dBc to 1MHz, <(-55dBc + 6dB/octave) 1MHz to 20MHz Output Level: 5mV to 20V pk-pk from 50 Ohms Squarewave Range: 1mHz to 10MHz/20MHz Resolution: 6 digits or 1mHz Symmetry: variable 20% to 80% in 1% steps Aberrations: <5% + 2mV Rise & Fall Times: <22ns Output Level: 5mV to 20V pk-pk from 50Ohms Triangle Range: 1mHz to 1MHz Resolution: 6 digits or 1mHz Linearity error: <0.5% to 100kHz Output Level: 5mV to 20V pk-pk from 50 Ohms Positive and Negative Pulse Range: 1mHz to 10MHz/20MHz Resolution: 6 digits or 1mHz Symmetry: variable 20% to 80% in 1% steps Aberrations: <5% + 2mV Rise & Fall Times: <22ns Output Level: 2.5mV to 10V pk-pk from 50 Ohms positive or negative only pulses with respect to the DC Offset baseline MODULATION MODES Continuous Continuous cycles of the selected waveform are output at the selected frequency. Gated Non phase-coherent signal keying - output is On while Gate signal is high and Off while low. Carrier frequency: From 0.1Hz to 10MHz/20MHz Carrier waveforms: All Trigger rep. rate: dc to 100kHz external, dc to 5kHz internal Gate source: Front panel MAN TRIG key, Internal Gate Generator, TRIG/GATE input, or Remote Interface Sweep Carrier waveforms: All Sweep Mode: Linear or logarithmic, single or continuous Sweep Width: 0.2Hz to 10MHz/20MHz. Phase continuous. Independent setting of the start and stop frequency. Sweep Time: 50ms to 999s (3 digit resolution) Markers: Marker variable during sweep. Available at the AUX OUT socket Sweep Trigger source: The sweep may be free run or triggered from: front panel MAN TRIG key, TRIG/GATE input, or Remote Interface Amplitude Modulation Carrier frequency: 1mHz to 10MHz/20MHz Carrier waveforms: All Modulation source: VCA IN socket Frequency Shift Keying (FSK) Phase coherent switching between two frequencies at a rate defined by the switching signal source. Carrier frequency: 1Hz to 10MHz/20MHz Carrier waveforms: All Switch repetition rate: dc to 5kHz (internal), dc to 1MHz (external) Switching signal source: Front panel MAN TRIG key, Internal Trigger Generator, TRIG/GATE input, or Remote Interface Tone The tone is output while the trigger signal is true, and stops (after completion of a full cycle) when the trigger signal is false. The next tone is output when the trigger signal goes true again. Carrier waveforms: All Frequency list: Up to 16 frequencies between1Hz and 10MHz/20MHz Min. switching time: 1ms per tone Switching source: IFront panel MAN TRIG key, Internal Trigger Generator, TRIG/GATE input, or Remote Interface Internal Trigger/Gate Generator Period: 0.2ms to 999s (resolution 0.2 ms) Waveform: Square wave (1:1 duty cycle) MAIN OUTPUT Output Impedance: 50 Ohms or 600 Ohms switchable Amplitude: 5mV to 20V pk-pk open circuit (2.5mV to 10V into 50 Ohms). Output can be specified as V-HiZ (open circuit value) or V (potential difference) in pk-pk, RMS or dBm. Note that in positive or negative Pulse modes the amplitude range is 2.5mV to 10V pk-pk O/C. Accuracy: ?3% ?1mV at 1kHz into 50 Ohms/600 Ohms Flatness: ?0.2dB to 500kHz; ?1dB to 10MHz; ?2dB to 20MHz DC Offset: ?10V from 50 Ohms/600 Ohms. DC offset plus signal peak limited to ?10V. Accuracy ?3% ?10mV Resolution: 3 digits for both amplitude and offset AUXILIARY OUTPUT Multi-function output user definable to be any of the following: Waveform Sync: Outputs a 50% duty cycle squarewave at the main waveform frequency Trigger Out: Outputs the current trigger signal Sweep Sync: Output a trigger signal at the start of sweep (for synchronising an oscilloscope or chart recorder). Can additionally output a sweep marker. Signal Levels: Logic levels of <0.8V and >3V. Sweep Sync is a 3 level waveform, low at start of sweep, high at end of sweep, with a narrow 1V pulse at the marker point INPUTS Ext Trig/Gate Frequency Range: DC to 1MHz for FSK; DC to 100kHz for Gate; DC to 2.5kHz for Tone and Sweep Signal Range: Nominal TTL level threshold; maximum input ?10V Min. Pulse Width: 100ns for Gate/FSK; 0.2ms for Sweep and Tone Input Impedance: Typically 10k Ohms VCA In Frequency Range: DC - 100kHz Signal Range: 2.5V for 100% level change at maximum output Input Impedance: Typically 6k Ohms INTERFACES (TG2000 Only) Full remote control facilities are available through the RS232 or USB interfaces. RS232: Variable Baud rate (19200 max), 9-pin D-connector. As well as operating in a conventional RS-232 mode the interface can be operated in addressable mode whereby up to 32 instruments can be addressed from one RS-232 port USB: Standard USB hardware connection. Conforming USB 1.1 GENERAL Display: 20 character x 4 row alphanumeric LCD Data Entry: Keyboard selection of mode, waveform etc.; value entry direct by numeric keys or by rotary control. Stored Settings: Up to 9 complete instrument set-ups may be stored in battery-backed memory. Size: 260(W) x 88(H) x 235(D) mm Weight: 2kg (4.5lb) Power: 100V, 110-120V or 220-240V ?10% 50/60Hz, adjustable internally. 40VA max. Installation Category II. Operating Range: +5oC to 40oC, 20-80% RH Storage Range: -20oC to +60oC Environmental: Indoor use at altitudes up to 2000m, Pollution Degree 2 Safety: Complies with EN6010-1 EMC: Complies with EN61326 |