Precision Noise Generators

PNG7000
Programmable Noise Generator

General Specifications PNG7000

Output White Gaussian noise
Minimum 18 dB crest factor
Output noise power +3 dBm
Noise attenuator 0 to 63 dB, with 0.25 dB step size
±0.2 dB or 1% at 0.5 - 1.0 GHz
±0.3 dB or 2% at 1 - 2 GHz
Signal path gain 0 ±1 dB

Noise attenuator ±0.2 dB or 0.5% accuracy at 1 - 500 MHz

Group delay variation ±0.2 nsec/40 MHz
Standard connectors SMA female
6.25" color VGA, TFT touch screen
Dimensions: 17.22 in. wide x 6.30 in. including feet, high x 19.5 in. deep
Fold-down feet for bench-top use
Power 115 VAC, 60 Hz
Operating temperature: -10° to +65°C

The PNG7000A Series instruments generate white Gaussian noise and provide a summing input to control signal-to-noise (SNR) or carrier-to-noise (CNR) for bit-error-ratio (BER) testing. The output can also be used as a random source for time domain Jitter applications. A key feature of this instrument is its low distortion signal path that sums the user-supplied signal with the internal precision white noise source.

The signal path has a nominal insertion gain of 0 dB, with very low amplitude and phase ripple. The noise source provides an exceptionally high crest factor for accurate bit error rate testing, even with large carrier-to-noise (CNR) or bit energy-to-noise density (Eb/No) ratios. With the addition of option 7, DC coupling will allow adding noise directly to a digital TTL, ECL, or similar signal.

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Timing Test & Measurement