JV9000 Series: Adjustable Vcc Noise Generator for PSRR Analysis
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Noisecom JV9000 Series Adjustable Vcc Noise and Spur Generator Today’s computers, communication devices and other electronic The JV9000 has also a range of optional spur generators that equipment use a wide combination of active devices including deliver various discrete and programmable frequencies with digital and analog ICs. Increased data/clock rates and densely programmable output levels in combination with the broadband packed active components creates an ideal environment for both noise. Multiples of such generators are also possible in one unit. electromagnetic interference (EMI) and other undesirable effects Noisecom’s JV9000 generator can be optionally equipped with such as ground bounce and Vcc droop jitter. Circuit designers are one or more auxiliary inputs that allow external custom signals well aware of the effect of noise and jitter on clock and data lines and how these distortions threaten the data integrity and proper functionality of their systems. Only after the magnitude and JV9000 replaces racks full of equipment typically used to make impact of such unwanted noise are identified during the design such tests. The convenient integration in one instrument saves and evaluation phases can their harmful effects be minimized. A days of set up and also provides repeatability and consistency. complete analysis of such phenomena is not always feasible or This is an essential piece of test equipment for anyone involved possible during the design stage. in developing or qualifying telecommunication related ICs and modules. The JV9000 will aid in identifying noise immunity and While Vcc specifications of integrated circuits define the opera- other problems early in the design cycle, and will reduce the tional range, high frequency noise can disturb their functional- number of expensive design iterations. ity, even operating within the specified Vcc limits. Designers and manufacturers of integrated circuits and small dense PCBs need to ensure that their products offer sufficient immunity against Vcc noise and other jitter. Placing a blocking capacitor adjacent to the VCC pin may no longer be sufficient. This problem has been greatly exasperated by ever dropping rail voltages (sometimes even below 1V). Noise on the rail or in the circuit that was once negligible now has become intolerable in modern devices. Noisecom’s JV9000 is a generator specifically designed to inject noise and deterministic jitter (DJ) signals into Vcc lines. The system is very easy to set up and requires only two connections: Vcc bias input to the JV9000, and its output (with the injected noise) connected to the Vcc path of the DUT test board. The built-in noise generator offers a broadband noise power of 0 dBm or more up to 2 GHz with a 127 dB attenuation range, adjustable in 0.1 dB steps. All controls are through an intuitive touch screen interface. Noisecom Vcc Noise and CW Genera

Specifications for Standard Model JV9075 Input Maximum Voltage Maximum Current Connector 5V 500 mA, higher options available (opt23 and opt24) BNC (F) Noise Source (white Gaussian noise) Impedence 50 Ohms SMA, optional BNC (F) - (opt01) Frequency Range 10 kHz to 2 GHz (500 Hz - 2 GHz operational), custom frequency (opt09) Output Power 0 dBm min. (at the output of bias-T), adjustable 60 dB, 0.1dB step into 50 Ohms Higher power (+10 dBm - opt05) CW Fixed Tones Impedance Frequencies Output Power CW/Spur Generator (optional) Impedance 50 Ohms (typ.) Frequency Range Options 1 kHz to 25 MHz...