SDI FS100-RM Manuel d'utilisateur télécharger pdf (Page 61)

NOISE DETECTOR, ND-3

FEATURES

 Ultra-low system noise floor

 RF bandwidth: 1 GHz to 18 GHz

 Integrated PLL and calibration port

 External mixer input

APPLICATIONS

 AM/PM noise measurements

 Characterization of components

DESCRIPTION

Model ND-3 is a noise detector module that may be used to measure AM or PM noise.

The module has a noise detector that can be used to make very high-resolution single

channel measurements. Two ND-3 modules can be combined to create a dual-channel

measurement system. A dual-channel system with cross-correlation noise analysis can

allow an effective reduction of at least 10 dB and up to 20 dB from the system noise

floor. The IF amplifier has variable gain and bandwidth settings. The IF amplifier

input can be switched to the front panel to allow connection of an external mixer. A

calibration input is available for gain calibration. The ND-3 includes an adjustable

bandwidth phase-lock loop that can be used when measuring oscillators to lock the

reference and device under test.

The ND-3 plugs into the NMS mainframe and requires a Noise Measurement System

Controller. The ND-3 uses one slot of the system mainframe.

SPECIFICATIONS

PARAMETER CONDITIONS MIN TYP MAX UNITS

RF measurement range carrier level

+ 7 to + 17 dBm

- 1 - 18 - GHz

IF bandwidth low

high

DC - 1

0.001 - 40

MHz

IF gain -

+26

+46

+60

PLL tuning bandwidth carrier

+ 7 dBm to + 17 dBm

- 0.01 - 100 - kHz

System residual PM noise

@ 10 GHz, +13 dBm carrier

Fourier frequency

1 Hz

10 Hz

100 Hz

1 kHz

10 kHz

100 kHz

1 MHz

-130

-140

-150

-160

-168

-170

-127

-137

-147

-157

-165

-167

dBc/Hz

SDI

Options:

ND-3 = 1 - 18 GHz RF Bandwidth, +7 to +17 dBm acceptable carrier power level

ND-3 Option M = 1 - 18 GHz RF Bandwidth, +10 to +20 dBm acceptable carrier power level

ND-3 Option H = 1 - 18 GHz RF Bandwidth, +15 to +27 dBm acceptable carrier power level

ND-3 Option A = 1 - 45 GHz RF Bandwidth, +7 to +17 dBm acceptable carrier power level

ND-3 Option A-M = 1 - 45 GHz RF Bandwidth, +10 to +20 dBm acceptable carrier power level

ND-3 Option A-H = 1 - 45 GHz RF Bandwidth, +15 to +27 dBm acceptable carrier power level

ND-3 Option B = 1 - 26 GHz RF Bandwidth, +7 to +17 dBm acceptable carrier power level

ND-3 Option B-M = 1 - 26 GHz RF Bandwidth, +10 to +20 dBm acceptable carrier power level

ND-3 Option B-H = 1 - 26 GHz RF Bandwidth, +15 to +27 dBm acceptable carrier power level

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SDI FS100-RM Manuel d'utilisateur Page 61

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