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The SRS DS360 Ultra-low distortion function generator has less than 0.001 % total harmonic distortion (THD), 25 ppm frequency accuracy, and a broad range of features including sweeps and bursts. The DS360 uses digital signal processing and a precision 20-bit D/A converter to provide better than –100 dB distortion over the audio frequency range. With its DDS architecture, the DS360 has the features and flexibility of a contemporary synthesized function generator. Careful shielding and board layout keep the output noise to a minimum, making the DS360 the instrument of choice for audio research and development, manufacturing, and automated testing. It has 6-digit frequency resolution from 1 mHz to 200 kHz, and a steady 25 ppm frequency stability. Specifications. Sine Frequency range: 0.01 Hz to 200.000 kHz. Square Frequency range: 0.01 Hz to 200 kHz. Rise time 1.3 µs. White Noise Bandwidth: DC to 200 kHz. Flatness: <1.0 dB, 1 Hz to 100 kHz. Pink Noise Bandwidth: 10 Hz to 200 kHz. Flatness: <3.0 dB (20 Hz to 20 kHz) (measured using 1/3 oct. analysis). Two-Tone Type: Sine-sine, sine-square. Sine or Square Burst On cycles: 0.5, 1 to 65534 cycles. Repetition rate: 1 to 65535 cycles. Frequency Resolution: 6 digits or 10 mHz (whichever is greater). Frequency Accuracy: 25 ppm (0.0025 %) + 4 mHz (20 °C to 40 °C). Amplitude Unbalanced outputs: 5.0 µVpp to 14.4 Vpp (50 ohm load). Amplitude Balanced outputs: 10.0 µVpp to 28.8 Vpp (50 ohm load). Resolution: 4 digits or 1 µV, whichever is greater (Vpp or Vrms), 0.1 dB (dBm or dBV). Computer interfaces: GPIB and RS-232. All instrument functions can be controlled. Option 03 10 MHz reference input.
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