JV9000 Series: Adjustable Vcc Noise Generator for PSRR Analysis

Datasheet

Abstract

Today’s computers, communication devices and other electronic equipment use a wide combination of active devices including digital and analog ICs. Increased data/clock rates and densely packed active components creates an ideal environment for both electromagnetic interference (EMI) and other undesirable effects such as ground bounce and Vcc droop jitter.

Adjustable Vcc Noise and Spur Generator

Today's computers, communication devices and other electronic equipment use a wide combination of active devices including digital and analog ICs. Increased data/clock rates and densely packed active components creates an ideal environment for both electromagnetic interference (EMI) and other undesirable effects such as ground bounce and Vcc droop jitter. Circuit designers are 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 impact of such unwanted noise are identified during the design and evaluation phases can their harmful effects be minimized. A complete analysis of such phenomena is not always feasible or possible during the design stage.

While Vcc specifications of integrated circuits define the operational range, high frequency noise can disturb their functionality, 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.

JV9000 Noisecom Adjustable Vcc Noise Generator

Noisecom JV9000

The JV9000 has also a range of optional spur generators that deliver various discrete and programmable frequencies with programmable output levels in combination with the broadband noise. Multiples of such generators are also possible in one unit. Noisecom's JV9000 generator can be optionally equipped with one or more auxiliary inputs that allow external custom signals onto the Vcc line.

JV9000 replaces racks full of equipment typically used to make such tests. The convenient integration in one instrument saves days of set up and also provides repeatability and consistency. This is an essential piece of test equipment for anyone involved in developing or qualifying telecommunication related ICs and modules. The JV9000 will aid in identifying noise immunity and other problems early in the design cycle, and will reduce the number of expensive design iterations.

Noisecom Vcc Noise and CW Generator

 

Specifications for Standard Model JV9075

Input
Maximum Voltage  5V
Maximum Current 

500 mA, higher options available (opt23 and opt24)

Connector 

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 (after Bias-T) 

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    50 Ohms (typ.)
Frequency Range Options

1KHz, 3KHz, 10KHz, 30KHz, 100KHz, 300kHz, 1MHz, 3MHz, 10MHz, 100MHz, 300MHz, 1GHz

Output power

0 dBm min (at the output of bias-T), adjustable, 60dB in 0.1dB steps


CW/Spur Generator (optional)
Impedance    50 Ohms (typ.)
Frequency Range Options

1 kHz to 25 MHz (opt21), programmable, 100 Hz resolution or 1 Hz resolution (opt06)
25 MHz to 3 GHz (opt22), programmable, 100 kHz resolution or 1 kHz resolution (opt07)

Output power 

0 dBm min. (at the output of bias-T), adjustable, 127 dB, 0.1 dB step, into 50 Ohms, harmonics 20 dBc or less (40 dBc for discrete tones optional) Higher power (+10 dBm - opt05)

Auxiliary Input (opt08-x)

Input Frequency Range 1 KHz - 1.5 GHz
Maximum Input Power

+10 dBm

Auxiliary Input Connector

50 Ohm SMA, optional BNC (opt01)

Level Control adjustable, 127 dB, 0.1 dB step

Note: Standard model comes with one auxiliary input. x can be 2 to 3 inputs. 

General Specifications

Dimensions (W/H/D)   17in x 5.25in x 13in / 432mm x 133mm x 330mm
Line Power   120V, 60Hz / 1.6A Slow-blow fused
Operating Temperature   -10°C to 60°C / 14°F to 140°F Ambient

Ordering Information

Model JV9075

Options

JV9opt01       BNC (F) in/out connectors
JV9opt05

+10 dBm, high power noise/CW option

JV9opt06

1 Hz frequency resolution for option 21

JV9opt07

1 kHz frequency resolution for option 22 

JV9opt08-x

Auxiliary input, consult factory for multiple inputs, x: number of inputs

JV9opt09  Custom frequency, Power or flatness (consult factory)
JV9opt10

Line power 230VAC, 50 Hz

JV9opt15

19 inch Rack Mount Kit

JV9opt16

GPIB/IEEE-488 Remote control

JV9opt17  Removable Hard Drive plus one additional HD with system.
Strongly suggested for Military and those involved in classified projects
JV9opt21

1 kHz - 25 MHz CW synthesizer 

JV9opt22

25 MHz - 3 GHz CW synthesizer

JV9opt23

Higher current, 2A DC, 50 kHz to 3 GHz 

JV9opt24 

Higher current, 5A, 10 MHz to 3 GHz

Please contact factory for other options or modifications