Model 4402 B-ultrasound low distortion capacitive oscillator

1、 Type

Model 4402 B-ultrasound low distortion capacitive oscillatorIt is a product with ultra-high purity sine wave and stable amplitudeUltra-low distortion capacitive oscillatorThis design meets the requirements of high-precision 16 to 18 bit A/D converter testing, audio testing, and measurement technology today.

Model 4402 B-ultrasound low distortion capacitive oscillatorFor precise 3-bit frequency tuning, covering a frequency range from 1Hz to 110kHz, producing almost "zero distortion" (<0.0005%) sine waves, used to measure the accuracy of A/D converters and harmonic distortion of audio preamplifiers and power amplifiers. 4402B avoids the requirement of constantly monitoring voltage levels during frequency response testing with its very flat response (0.02dB).

2、 Output

4402B provides a 7Vrms sine wave output (smooth output, 14Vrms between ends), 3.5Vrms at 50 ohms, and no performance loss when the load is a linear 50 ohm load. A 3-digit button attenuator with a step size of 20dB, combined with a 30dB ruler, provides a total dynamic range of 90dB.

Simultaneously providing fixed output and orthogonal (90 º) output. Each output is 7Vrms and the power impedance is 600 ohms.

4402B is very suitable for on-site testing and precise measurement of instrument devices.

3、 Specifications

Frequency range: 1Hz~110kHz

Accuracy: 0.5% of frequency setting

Stability:

Relative to time: 0.01% at 1 hour

Relative temperature: 0.05%/℃

Relative to line voltage:<0.001% (within 10% variation of line voltage)

Control: 2-digit frequency, calibrated between 1Hz and 0.1Hz steps, equipped with a calibrated vernier scale, providing continuous measurements between 0.1Hz steps, and a button type multiplier with a 5-fold overlapping range.

4、 Main output

(Specification applicable to every output grounding)

Peak amplitude: 7Vrms when open circuit; At a load of 50 ohms, it is 3.5vrms (+48dBm).

Impedance: Fixed value of 50 ohms

Peak current: 75mArms

Minimum amplitude:<0.2mV

Amplitude flatness: ± 0.02dB, 1Hz-110kHz.

Amplitude stability:

Relative to time: 0.01% at 1 hour

Relative temperature: 0.05%/° C

Relative to line voltage:<0.001% (within 10% variation of line voltage)

5Ultra-low distortion capacitive oscillatorInstruction Manual

Amplitude control: The 4-digit key attenuator is calibrated from 0dB to 60dB at a step size of 20dB, with an accuracy of ± 0.25dB/20dB step size; Coverage calibration voltage with an effective voltage value greater than 30dB.

Accuracy: 20% of the set value

Main output distortion:

Noise: Signal below 110dB (detector bandwidth 10Hz~20kHz)

6、 Fixed output

Amplitude: 7Vrms when open circuit; At a load of 600 ohms, it is 3.5Vrms (+13dBm).

Impedance: Fixed value of 600 ohms

Amplitude flatness: ± 0.02dB, 1Hz~110kHz.

Amplitude stability:

Relative to time: 0.01% at 1 hour

Relative temperature: 0.05%/° C

Relative to line voltage:<0.001% (within 10% variation of line voltage)

distortion

Phase accuracy (180 ° from main output): 1Hz~10kHz, ± 0.2 °; 10kHz~110kHz, ± 1 °.

7、 Orthogonal output

Amplitude: 7Vrms when open circuit; At a load of 600 ohms, it is 3.5Vrms (+13dBm).

Impedance: Fixed value of 600 ohms

Amplitude flatness: ± 0.02dB, 1Hz~110kHz.

Amplitude stability:

Relative to time: 0.01% at 1 hour

Relative temperature: 0.05%/° C

Relative to line voltage:<0.001% (within 10% variation of line voltage)

distortion

Phase accuracy (180 ° from main output): 1Hz~1kHz, ± 0.2 °; 1kHz~10kHz，±1°； 10kHz~110kHz, ± 10 °.

8、 Conventional

Environmental temperature range: 0 ° C~50 ° C

Power requirements: Switch selectable, 90-132 or 180-264V, single-phase, 50-60Hz, 18W.

Floating ground: The backplane switch is grounded in the floating circuit from the chassis ground up to 100V.

Dimensions: Height 3.5 "(8.9cm), Width 9" (23cm), Depth 8.5 "(21.6cm).

Weight: Net weight 5 pounds (2.3kg); The total weight is 7 pounds (3.2kg).

Attachment: 3-terminal power cord; Operation manual.

9、 Option settings

Rack Installation Kit: Part Number RK-39, allows installation of 4402B onto a standard rack with a spacing of 19 inches.

Extended 1-year warranty: Part number EW4402B

10、 Optional accessories

CAB-025: Cable, BNC， 3 feet, low noise.

Specifications are subject to change without prior notice.