TG1006 10MHz DDS Function Generator INSTRUCTION MANUAL
Table of Contents Specifications 2 EMC 6 Safety 7 Installation 8 Connections 9 General 10 Standard Waveform Operation 11 Sweep 13 FSK 15 Store and Recall 16 LIST 17 Amplitude Modulation 17 External Counter 18 Calibration & Maintenance 18 This manual is 48591-1250 Issue 2 Note: The latest revision of this manual can be downloaded from: http://tti1.co.uk/downloads/manuals-generator.
Specifications Specifications apply at 18°- 28°C after one hour warm-up, at maximum output into 50Ω. WAVEFORMS Standard waveforms of Sine, Square, Triangle and DC. Sine Range: 1mHz to 10MHz. Resolution: 1mHz or 6 digits. Accuracy: 10 ppm for 1 year; ± 1mHz below 0.2Hz. Temperature Stability: Typically <1 ppm/ºC outside 18° to 28°C. Output Level: 1mV to 10Vp−p into 50Ω. Harmonic Distortion: <0.3% THD to 20kHz (typically 0.1%). <–45dBc to 300kHz. <−30dBc to 10MHz (typically <−35dBc).
Amplitude Modulation Carrier Frequency: From 1mHz to 10MHz. Carrier Waveforms: All. Modulation Frequency: 400Hz internal. DC to 20kHz external. External Modulation: AM/COUNT IN socket. Frequency Shift Keying (FSK) Phase coherent switching between two selected frequencies at a rate defined by the switching signal source. Carrier frequency: From 0.1Hz to 10MHz. Carrier waveforms: All. Switch repetition rate: DC to 10kHz (internal trigger).
Count In The AM/COUNT IN socket is set to external frequency measurement when EXT COUNT is selected. Input Impedance: 1MΩ//20pF. Input Sensitivity: 50mVrms (sinewave). Maximum Allowable Input Voltage: 30Vdc/30Vrms to 50Hz/60Hz with respect to ground 1Vrms above 1MHz. , reducing to DISPLAY FUNCTIONS The LCD shows generator frequency setting at a resolution of 4 digits simultaneously with output amplitude/offset, together with various status annunciators.
EC Declaration of Conformity We Thurlby Thandar Instruments Ltd Glebe Road Huntingdon Cambridgeshire PE29 7DR England declare that the TG1006 10MHz Function Generator meets the intent of the EMC Directive 2004/108/EC and the Low Voltage Directive 2006/95/EC. Compliance was demonstrated by conformance to the following specifications which have been listed in the Official Journal of the European Communities.
EMC This instrument has been designed to meet the requirements of the EMC Directive 2004/108/EC. Compliance was demonstrated by meeting the test limits of the following standards: Emissions EN61326-1 (2006) EMC product standard for Electrical Equipment for Measurement, Control and Laboratory Use. Test limits used were: a) Radiated: Class B b) Conducted: Class B c) Harmonics: EN61000-3-2 (2006) Class A; the instrument is Class A by product category.
Safety This instrument is Safety Class I according to IEC classification and has been designed to meet the requirements of EN61010-1 (Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use). It is an Installation Category II instrument intended for operation from a normal single phase supply. This instrument has been tested in accordance with EN61010-1 and has been supplied in a safe condition.
Installation Mains Operating Voltage The operating voltage of the instrument is shown on the rear panel. Should it be necessary to change the operating voltage from 230V to 115V or vice-versa, proceed as follows: 1. Disconnect the instrument from all voltage sources. 2. Unclip the front bezel by gently pulling the centre of each long edge up and forward. The case halves are held together by 4 plastic push-rivets.
Connections MAIN OUT (50Ω and 600Ω) This is the main output from the generator with an output source impedance of either 50Ω or 600Ω; the outputs are not independent. Either output will provide up to 20V peak−to−peak e.m.f. which will give 10V peak-to-peak into a matched load. The outputs can tolerate a short circuit for 10 minutes. Do not apply external voltages to these outputs. SYNC Automatically selected to be either Waveform Sync or Sweep Sync.
General This section is a general introduction to the organisation of the instrument and is intended to be read before using the generator for the first time. Detailed operation is covered in later sections starting with Standard Waveform Operation. In this manual front panel controls and sockets are shown in capitals, e.g. AM DEPTH, MAIN OUT; parameter values and messages displayed on the LCD are shown in a different type−font, e.g. SWP-LOG, Func oFF.
Data Retention at Power-down Whenever the instrument is switched off the following parameters are stored to non-volatile memory: main generator frequency, the 10 user-defined frequencies, sweep time, sweep start and stop frequencies, lin or log selection, FSK frequencies F0 & F1, and the FSK rate.
controls provide a range of 20V peak-to-peak down to 2mV peak-to-peak, or 10V peak-to-peak down to 1mV peak-to-peak into the output’s characteristic impedance. Still greater attenuation of the 50Ω MAIN OUT can be achieved by using standard 50Ω BNC attenuators. To maintain waveform integrity only 50Ω cable should be used and the receiving end should be terminated with a 50Ω load.
Sweep Principles of Sweep Operation All waveforms can be swept phase-continuously from 0.1Hz up to the maximum frequency for the selected waveform. Although the frequency is stepped, not truly swept as in an analogue generator, the short step interval (500us) gives a close approximation to an analogue instrument except for the widest sweeps in the shortest time; see the Frequency Stepping Resolution section for further discussion.
Manual Sweep When the sweep function operating mode is enabled, its default condition of manual sweep is initialised. This allows the user to manually sweep from the start frequency to the stop frequency using the MANUAL SWEEP control. Manual sweep provides a total of 510 frequency steps between the start and stop frequencies. The frequency of the current step of the sweep is displayed with a resolution of 4 digits.
FSK General FSK (Frequency Shift Keying) mode permits fast phase-continuous switching between two frequencies within the range of 0.1Hz to 10MHz at a rate of up to 10kHz. All other parameters of the waveform (amplitude, offset, symmetry) remain the same as the freq uency is switched. FSK mode is turned on and off by pressing the SHIFT key followed by FSK (numeric key 1); FS on momentarily shows in the display when it is turned on, and FS oFF shows when it is turned off.
Store and Recall General Store and Recall functions permit up to 10 user-defined frequencies be saved to, and restored from, non-volatile memory, with no limit to the number of overwrites to each memory location. The stored values can be any frequency within the range of 1mHz to 10MHz. Store Storing a frequency value is initiated by pressing the SHIFT key followed by STORE (numeric key 0).
LIST General Frequency LIST mode permits stepping through a list of up to 10 user-defined frequency values. These frequency values are the ones saved by the user in memory locations 0-9 using the Store function; see Store and Recall section for more discussion. LIST mode is turned on and off by pressing the SHIFT key followed by LIST (the CE key); LISt on momentarily shows in the display when it is turned on, and LISt oFF shows when it is turned off.
External Counter Selecting EXT COUNTER ON sets the COUNT IN socket to external frequency measurement. The display changes to show a 6/7-digit frequency measurement and the EXT annunciator shows in the display to indicate external measurement. Note: With no input signal present the counter displays 00. until an adequate input signal is applied. In external counter mode the COUNT IN socket has an impedance of 1MΩ in parallel with 20pF. Input frequency range is 3Hz to >120MHz (typically 150MHz).
Thurlby Thandar Instruments Ltd. Glebe Road • Huntingdon • Cambridgeshire • PE29 7DR • England (United Kingdom) Telephone: +44 (0)1480 412451 • Fax: +44 (0)1480 450409 International web site: www.aimtti.com • UK web site: www.aimtti.co.uk Email: info@aimtti.com Aim Instruments and Thurlby Thandar Instruments Book Part No.
