Atec 35665A User Manual

Product Specifications

Frequency

RANGE
One Channel Mode (CH. 1): 102.4 kHz
Two Channel Mode (Ch 1 & 2): 51.2 kHz

35665A 2-Channel DC to

102.4 kHz Dual Channel
Dynamic Signal Analyzer

Data Sheet

RESOLUTION
100, 200, 400 or 800 lines resolution
Frequency resolution = frequency span/number of lines resolution
Minimum frequency resolution
One Channel Mode: 244 uHz
Two Channel Mode: 122 uHz

SPANS
One Channel Mode: 102.4 kHz to 0.19531 Hz
Two Channel Mode: 51.2 kHz to 0.097656 Hz

ACCURACY ±30 ppm
Real Time Bandwidth
Fast Average On: >=12.8 kHz

MEASUREMENT RATE
401 point FFT display, fast average on
One Channel mode: >=33 averages/second (typical)
Two channel mode: >=15 averages/second (typical)

DISPLAY UPDATE RATE: >=8 updates/second (typical)
401 point FFT display, fast average off

Amplitude/Phase

INPUT RANGES (full scale): +27 dBVrms (31.7 Vpk) to

-51 dBVrms (3.99 mVpk)
in 2 dB steps

AMPLITUDE RESOLUTION: 0.016% of full scale (typical)

ABSOLUTE AMPLITUDE ACCURACY: ±2.92% (0.25 dB) of reading
±0.025% of full scale

CROSS-CHANNEL GAIN ACCURACY
Source = Full scale: ±0.04dB
Source = -20dB full scale: ±0.08dB

CROSS-CHANNEL PHASE ACCURACY
Source = full scale: ±0.5 deg
Source = -20 dB full scale: ±0.5 deg

Dynamic Range

FULL SPAN FFT NOISE FLOOR
Input Range 27 to -35 dBVrms: <-76 dBfs (-85 dBfs typical)
Input Range -37 to -51 dBVrms: <(-112 - Range) dBfs

SPURIOUS FREE DYNAMIC RANGE: <-72 dBfs
(Includes Spurs, Harmonic Distortion, Intermodulation Distortion, Alias Products)

Zoom Mode Alias Responses

1.5% to 98.5% of the Frequency Span: <-72 dBfs
Lower and Upper 1.5% of Frequency Span: <-65 dBfs

INPUT NOISE LEVEL
Above 1280 Hz: <-140 dBVrms / (Sq. R)Hz
160 Hz to 1.28 kHz (6.4kHz span): <-130 dBVrms / (Sq. R)Hz

Input

INPUT RANGES: -51 dBVrms to +27 dBVrms

INPUT IMPEDANCE: 1M ohm ±30%
< or = 100 pico Farad

Low Side to Chassis Impedance
Floating Mode: 1M ohm ±30% (typical)
<0.01 micro Farad (typical)

AC COUPLING: <3 dB Rolloff at 1Hz

COMMON MODE REJECTION

-51 dBvVrms to -11 dBvVrms Ranges: >80 dB (typical)

-9 dBVvrms to +9 dBVrms Ranges: >60 dB (typical)
+11 dBvVrms to +27 dBVrms Ranges >40 dB (typical)

COMMON MODE RANGE (floating mode): ±4 V pk

IEPE SIGNAL CONDITIONING
Current Source: 4.25 ±1.5 mA
Open Circuit voltage: +26 to +32 Vdc

Trigger/Tachometer