Brochure

Technical Specifications
Designed and built in Europe by:
Thurlby Thandar Instruments Ltd. operates a policy of continuous development and
reserves the right to alter specifications without prior notice.
Thurlby Thandar Instruments Ltd.
Glebe Road, Huntingdon. Cambs. PE29 7DR United Kingdom (UK)
Tel: [phone] Fax: [phone]
Email: [e-mail] Web: www.tti-test.com
THURLBY THANDAR INSTRUMENTS
TG300 Series
3MHz function and sweep/function generators
simultaneous display of frequency & amplitude
FREQUENCY
Frequency Range: 0.03Hz to 3MHz in 7 overlapping decade
ranges with fine adjustment by a vernier.
Vernier Range: 1000:1 on each range.
OPERATING MODES
Specifications apply for the top decade of each frequency range and maximum out
-
put into 50
termination.
SINE
Distortion: <0.5% on 300, 3k and 30k ranges; <1% on
3, 30 and 300k ranges; all harmonics >25dB
below fundamental on 3M range.
Amplitude Flatness: ±0.2dB to 200kHz; ±2dB to 3MHz.
TRIANGLE
Linearity: Better than 99% to 200kHz
SQUARE WAVE
Rise/Fall Times: <100ns
Mark - Space Ratio: 1:1 ± 1% to 100kHz
DC
Range: ±10V unterminated
SYMMETRY
Symmetry Range: Variable typically 1:9 to 9:1 (on top decade of
each range), frequency divided by 10.
METER FUNCTIONS (generator mode)
Frequency: Auto-ranging reciprocal measurement giving
4 digit resolution for frequencies down to
1Hz; maximum resolution is 0.001Hz.
Accuracy ±1 digit for 0.2Hz to 3MHz.
Below 0.2Hz accuracy is ±1% of range full
scale (symmetry off).
Amplitude: Display shows peak-to-peak amplitude or rms
value. Display corrected for attenuator set-
ting. 3-digit resolution, accuracy typically 5%
of range. Clipping indicator on display.
DC Offset: 3-digit resolution; accuracy typically ±2% of
setting ±1 digit. Display corrected for attenu-
ator setting. Clipping indicator on display.
OUTPUTS
MAIN - 50 Ohm
Amplitide 2mV to 20V peak-peak open circuit (1mV to
10V peak-peak into 50Ω) in four switch-
selectable ranges with 20dB vernier control
within each range
Attenuator Ranges: 0dB, -20dB, -40dB, -60dB
DC Offset Range:
±10V from 50Ω. DC offset plus signal peak
limited to ±10V (±5V into 50Ω). DC offset
plus waveform attenuated proportionally by
the attenuator.
MAIN - 600 Ohm Alternative output socket offering the same
facilities as the 50Ω socket.
AUX OUT 0 to 5V TTL/CMOS logic levels capable of
driving 2 standard TTL loads. Frequency,
symmetry and phase as main outputs
SWEEP OUT
3V ramp from 600Ω (TG330 only)
EXTERNAL COUNTER (TG320 and TG330 only)
Frequency Ranges: 5Hz to 25MHz and 20MHz to 120MHz,
fully autoranging to maximum resolution
Input Sensitivity: 50mV rms (sinewave)
Input Impedance:
1MΩ/25pF
Measurement Time: Selectable 0.5s or 5s
Resolution: 6 digits in 0.5s; 7 digits in 5s
Accuracy: ±1 digit ± timebase accuracy
Timebase Accuracy: ±10ppm initial error; ±5ppm/year ageing rate;
typically less then 0.5ppm/
o
C. Adjustment
point for closed-case recalibration
SWEEP MODES
EXTERNAL
Input Impedance:
10kΩ
Input Sensitivity: 0 to 3V for 1000:1 sweep
Max. Input Voltage: ±10V
Sweep Linearity: Better than 1%
Max. Slew Rate: 0.1V/us
INTERNAL (TG330 only)
Sweep Range: 1000:1 within each range.
Sweep Rate: Adjustable, typically 20ms to 20 secs.
Sweep Mode: Linear or logarithmic. Sweep start and stop
frequencies displayed at the press of a but
-
ton.
Sweep Output:
3V ramp from 600Ω.
AMPLITUDE MODULATION (TG330 only)
Depth: Variable 0 to 100% typical.
Frequency: 400Hz (internal). DC to 20kHz (external).
External Sensitivity: Approximately 2V peak-to-peak for 50% mod-
ulation. Input impedance 40kΩ.
GENERAL
CASING
Moulded ABS case with tilt stand.
POWER REQUIREMENTS
Input Voltage: 220 to 240 volts AC nominal 50/60Hz or
110 to 120 volts AC nominal 50/60Hz by rear
panel adjustment. Installation category II.
Power Consumption: 25VA max.
TEMPERATURE & ENVIRONMENTAL
Operating Temp.
Range: +5
o
C to +40
o
C, 20% to 80% RH.
Storage Temp.
Range: -10
o
C to +65
o
C
Environmental: Indoor use at altitudes up to 2000m.
Pollution degree 2.
SIZE 260(W) x 88(H) x 235(D)mm (10.2 x 3.4 x
9.2"), excluding handle and feet.
WEIGHT 1.9kg (4.2lb)
SAFETY Complies with EN61010-1.
EMC Complies with EN61326.
seven digit 120MHz external frequency counter
internal sweep generator, amplitude modulation
82100-0095 Iss. 2