Technical Specifications FREQUENCY EXTERNAL COUNTER (TG320 and TG330 only) Frequency Range: 0.03Hz to 3MHz in 7 overlapping decade Frequency Ranges: 5Hz to 25MHz and 20MHz to 120MHz, ranges with fine adjustment by a vernier. fully autoranging to maximum resolution Vernier Range: 1000:1 on each range. Input Sensitivity: 50mV rms (sinewave) Input Impedance: 1M /25pF OPERATING MODES Measurement Time: Selectable 0.5s or 5s Specifications apply for the top decade of each frequency range and maximum out- Resolution: 6 digits in 0.5s 7 digits in 5s put into 50 termination. Accuracy: 1 digit timebase accuracy AIM & THURLBY THANDAR INSTRUMENTS SINE Timebase Accuracy: 10ppm initial error 5ppm/year ageing rate typically less then 0.5ppm/oC. Adjustment Distortion: <0.5% on 300, 3k and 30k ranges <1% on point for closed-case recalibration 3, 30 and 300k ranges all harmonics >25dB TG300 Series below fundamental on 3M range. SWEEP MODES Amplitude Flatness: 0.2dB to 200kHz 2dB to 3MHz. EXTERNAL TRIANGLE Input Impedance: 10k Linearity: Better than 99% to 200kHz Input Sensitivity: 0 to 3V for 1000:1 sweep SQUARE WAVE Max. Input Voltage: 10V Rise/Fall Times: <100ns Sweep Linearity: Better than 1% Mark - Space Ratio: 1:1 1% to 100kHz Max. Slew Rate: 0.1V/us DC INTERNAL (TG330 only) Range: 10V unterminated Sweep Range: 1000:1 within each range. SYMMETRY Sweep Rate: Adjustable, typically 20ms to 20 secs. Symmetry Range: Variable typically 1:9 to 9:1 (on top decade of Sweep Mode: Linear or logarithmic. Sweep start and stop each range), frequency divided by 10. frequencies displayed at the press of a but- METER FUNCTIONS (generator mode) ton. Sweep Output: 3V ramp from 600 . Frequency: Auto-ranging reciprocal measurement giving 4 digit resolution for frequencies down to AMPLITUDE MODULATION (TG330 only) 1Hz maximum resolution is 0.001Hz. Accuracy 1 digit for 0.2Hz to 3MHz. Depth: Variable 0 to 100% typical. Below 0.2Hz accuracy is 1% of range full Frequency: 400Hz (internal). DC to 20kHz (external). scale (symmetry off). External Sensitivity: Approximately 2V peak-to-peak for 50% mod- Amplitude: Display shows peak-to-peak amplitude or rms ulation. Input impedance 40k . value. Display corrected for attenuator set- GENERAL ting. 3-digit resolution, accuracy typically 5% of range. Clipping indicator on display. CASING DC Offset: 3-digit resolution accuracy typically 2% of Moulded ABS case with tilt stand. setting 1 digit. Display corrected for attenu- POWER REQUIREMENTS ator setting. Clipping indicator on display. Input Voltage: 220 to 240 volts AC nominal 50/60Hz or 110 to 120 volts AC nominal 50/60Hz by rear OUTPUTS panel adjustment. Installation category II. MAIN - 50 Ohm Power Consumption: 25VA max. Amplitide 2mV to 20V peak-peak open circuit (1mV to TEMPERATURE & ENVIRONMENTAL 10V peak-peak into 50 ) in four switch- Operating Temp. selectable ranges with 20dB vernier control o o Range: +5C to +40C, 20% to 80% RH. within each range Storage Temp. Attenuator Ranges: 0dB, -20dB, -40dB, -60dB Range: -10oC to +65oC DC Offset Range: 10V from 50 . DC offset plus signal peak Environmental: Indoor use at altitudes up to 2000m. limited to 10V (5V into 50 ). DC offset Pollution degree 2. plus waveform attenuated proportionally by SIZE 260(W) x 88(H) x 235(D)mm (10.2 x 3.4 x the attenuator. 9.2 ), excluding handle and feet. MAIN - 600 Ohm Alternative output socket offering the same WEIGHT 1.9kg (4.2lb) facilities as the 50 socket. SAFETY Complies with EN61010-1. AUX OUT 0 to 5V TTL/CMOS logic levels capable of EMC Complies with EN61326. driving 2 standard TTL loads. Frequency, 3MHz function and sweep/function generators symmetry and phase as main outputs Thurlby Thandar Instruments Ltd. operates a policy of continuous development and reserves the right to alter specifications without prior notice. SWEEP OUT 3V ramp from 600 (TG330 only) simultaneous display of frequency & amplitude seven digit 120MHz external frequency counter Designed and built in Europe by: internal sweep generator, amplitude modulation Thurlby Thandar Instruments Ltd. Glebe Road, Huntingdon. Cambs. PE29 7DR United Kingdom (UK) Tel: +44 (0)1480 412451 Fax: +44 (0)1480 450409 Email: info aimtti.com Web: www.aimtti.com 82100-0095 Iss. 2Athe highest waveform quality TG315, TG320, TG330 function generators the widest range of facilities A state-of-the-art Exceptional waveform quality Advanced internal sweep External counter with Wide range level control Dual digital displays for instrument The TG300 series provides very high The TG300 series provides a main output The TG330 incorporates a versatile inter- seven digit resolution precision & convenience The function generator is one of the most waveform quality under all conditions. with a maximum emf of 20V pk-pk from a nal sweep generator capable of providing The TG320 and TG330 have an external The TG300 series generators incorporate versatile pieces of test & measurement in- 50 or 600 source. linear or logarithmic frequency sweeps. That means low sinewave distortion, low counter mode which utilises the full width a large dual-section digital display. strumentation available. aberration triangle waves and fast-edged An amplitude vernier with a range of 20dB Start and stop frequencies can be set with of the display to provide up to seven digits Unlike competitive products the display It can generate a variety of precision square waves with low overshoot. is combined with two switched attenua- precision using the digital display. Sweep of resolution. provides a readout not just of frequency, waveshapes over a range of frequencies ranges of over 1000:1 are possible. Unlike many competitive products good tors of -20dB and -40dB to provide levels The frequency range is from 5Hz up to but of amplitude or offset simultaneously. from mHz to MHz. It can provide a wide down to 2mV pk-pk unterminated. waveform quality is maintained through- The sweep rate is adjustable over a wide 120MHz in two ranges, and the input sen- range of controlled amplitudes from a out the frequency range and at low output Variable DC offset of 10V is available via range with good setability between limits sitivity is better than 50mV rms. Fast and accurate frequency low-impedance source, and maintain con- levels. a centre detent control. An auxiliary output of 20ms and 20s. stant amplitude as the frequency is varied. measurement provides a fixed 0V to +5V level suitable A sweep output socket is provided for use Variable symmetry for pulse Voltage control of frequency enables a for driving both TTL and CMOS loads. Auto-ranging reciprocal measurement with an oscilloscope or an X-Y recorder. Un- source of swept frequency to be gener- gives 4-digit resolution with rapid update and ramp waveforms like many other sweep generators, the ated for frequency response testing. Wide sweep range right down to Hz levels. Accuracy is within sweep ramp is triangular which gives a su- The TG300 series provides bi-directional Modulation can also be added. 1 digit. Each range can be swept by at least perior display when using an oscilloscope to variable symmetry from 1:9 to 9:1. Unlike A measurement period of 0.5 or 5 seconds The TG300 series represents the state- To maintain a fast update at sub-Hz 1000:1 either manually or via the external display swept frequencies. some products, frequency is independent can be selected. A reciprocal counting of-the-art in low-cost analogue function frequencies, the measurement mode is sweep input. of symmetry setting. measurement system is used which en- generators. changed resulting in 3-digit resolution and sures high resolution regardless of input reduced accuracy. frequency. However, when compared to the normal Thus, for example, mains frequency can fixed gate-time meters used in other prod- be measured to a resolution of better than ucts it provides both higher accuracy and 1mHz. faster display update across the whole fre- quency range. Accuracy is better than 10ppm (0.001%) and an external adjustment point allows for closed case re-calibration. Built for the bench or rack All three models are housed in the TTi TG330 in swept frequency mode. mid-size bench instrument case. RMS or peak to peak This heavy duty ABS case features an in- amplitude display tegral tilt stand and is 2U high for optional Amplitude modulation for The output level display can be selected to rack mounting using an RM50 rack mount extra versatility show any of three values: kit. The TG330 also incorporates comprehen- 1. The peak to peak amplitude sive AM facilities. Part of a wider range 2. The RMS amplitude The modulation can be external or internal TTi offers a wide choice of function gener- 3. The DC offset (via a 400Hz internal generator) with ators both analogue and digital, from a RMS values are calculated correctly for modulation levels fully variable between simple 2MHz model up to a highly sophisti- each waveform shape. 0% and 100%. cated 40MHz unit. A choice of three models 0.03Hz to 3MHz frequency range The following two models share the case TG315 style of the TG300 series while offering Simultaneous display of frequency & amplitude features sets above and below them. The TG315 includes dual digital display of frequency and amplitude, along with External 7 digit 120MHz frequency counter (not TG315) TG210 the basic generator functions of sine, The TG210 is a 2MHz generator offering square & triangle waveforms, variable Very high waveform quality at all frequencies & levels The decimal point and units are changed the same high waveform quality and DC offset, variable symmetry and an ex- automatically resulting in a display of the features as the TG315, but without the dig- 2mV to 20V pk-pk from 50 or 600 ternal sweep input. true amplitude regardless of the attenu- ital display. ator setting. TG320 Auxiliary TTL/CMOS output TG550 A display indicator warns against illegal The TG320 adds an external frequency The TG550 is a 5MHz generator offering a combinations of offset and amplitude counter with up to 7 digits of resolution Variable symmetry with constant frequency similar feature set to the TG330, but with setting that would create clipping in the covering 5Hz to 120MHz. the added benefit of digital frequency Variable DC offset with zero detent output stage. TG330 locking. The TG330 has all the features of the 1000:1 frequency change by vernier or sweep voltage TG320 plus an internal sweep generator Precision internal linear or logarithmic sweep (TG330) with linear or log sweep, variable sweep rate and a sweep output socket. Internal or external amplitude modulation (TG330) It also offers internal or external ampli- tude modulation.