Power function generator with integral feedback voltage protection TOE 7741 – 63 W TOE 7741 Special features Technical specifications Other signal inputs and outputs Synchronization TTL-compatible, Functions and operating modes – Frequency range 1 mHz to 100 kHz signal output source impedance: 50 Ohm Functions Sine, triangle, square, positive and Modulation input Approx. 5 V for a frequency variation negative pulses, broadband power – High output power (VCO) ratio of 1000:1, amplifier, DC, variable symmetry > 63 W into 8 Ohm R = 10 kOhm Operating modes Free-running, external sweep- i OCV output 0 to 5 V output voltage frequency control, amplifier mode, – Max. output amplitude > 45 V pp for a frequency change 1:1000 frequency counter EXT IN Amplifier input, Frequency characteristics – Output with feedback voltage max. input voltage Frequency range 1 mHz to 100 kHz in protection 15 V , R = 10 kOhm rms i 6 decadic subranges Frequency counter mode Frequency offset ± 2 % – Frequency counter up to 30 MHz Frequency error ± 2 digits, 2 % of full-scale value Frequency range < 1 Hz to 30 MHz when using the scale Resolution 4 or 5 digits with autoranging -3 -3 Drift 1 x 10 /K, 5 x 10 in 8 hours, TOE 7741 power function generator Accuracy ± 2 digits in each case following 30 min with 63 W output power and integral warm-up time Sensitivity 150 mV < 10 MHz rms frequency counter 250 mV > 10 MHz Function output rms The outstanding feature of the TOE 7741 Output amplitude V = 45 mV to 45 V, Input impedance 1 MOhm II 120 pF pp power function generator is its high pow- 22.5 mV to 22.5 V in pulse mode Input protection Up to 15 V rms er output of over 63 W (with rectangular Output impedance Approx. 0 Ohm. The output is waveforms). no-load and short-circuit proof This power is achieved at an output Feedback voltage amplitude of 45 V into 8 Ohm load. pp General data protection < 120 V Since the output amplifier has an internal Line voltage 115/230 V ± 10 % DC offset 0 to ± 15 V resistance of approx. 0 Ohm and is 47 Hz to 63 Hz Output attenuator 30 dB continuously adjustable shielded by feedback voltage protection, plus 20 dB or 30 dB steps Power consumption 140 VA any external voltages of up to 120 V Frequency response Operating will not destroy its output stage. Further- (sine, triangle) 0.5 dB up to 100 kHz temperature 0 °C to 40 °C more, all front-panel inputs and outputs Function specification Dimensions are no-load and short-circuit proof. The at max. (W x H x D) 265 x 147 x 480 mm frequency settings are made using a de- output voltage Weight Approx. 7 kg cade switch, the frequency dial and the into 8 Ohm load frequency offset potentiometer. The latter Housing Aluminium Sine allows frequency settings with a reprodu- Distortion factor < 0.5 % up to 50 kHz, cibility of < 0.1 %. < 1 % up to 100 kHz The outstanding feature of this instru- Triangle Ordering data ment is its frequency counter that can Linearity error < 1 % up to 100 kHz measure both internal and external sig- Symmetry error < 1 % up to 100 kHz Power function nal frequencies. The counter has an LED Square display. Besides the basic sine, triangle Transition time < 0.8 μs generator TOE 7741 Overshoots and square functions, the instrument gen- 5 % Pulse See square erates positive and negative pulses and Options Symmetry variation 10 % to 90 %, f 10 kHz bipolar DC voltage, and can also be max: used as a broadband power amplifier Amplifier Approx. 20 dB gain, TOE 9501 19“ adapter, 3 HU for the range DC up to 100 kHz. DC to approx. 100 kHz, TOE 9503 19“ rack module, 4 HU distortion factor < 0.2 % up to 100 kHz, input impedance = 10 kOhm TOE 9008 Carrying handle -12