35670A Dynamic Signal Analyzer - Data Sheet

35670A Dynamic Signal Analyzer - Data Sheet
Keysight Technologies
35670A Dynamic Signal Analyzer
Versatile two- or four-channel high-per­for­mance
FFT-based spectrum/network an­a­lyz­er
122 µHz to 102.4 kHz 16-bit ADC
Data Sheet
02 | Keysight | 35670A Dynamic Signal Analyzer - Data Sheet
Key Specifications
Frequency range
102.4 kHz 1 channel
51.2 kHz 2 channel
25.6 kHz 4 channel
Dynamic range
90 dB typical
Accuracy
± 0.15 dB
Channel match
± 0.04 dB and ± 0.5 degrees
Real-time bandwidth
25.6 kHz/1 channel
Resolution
100, 200, 400, 800 & 1600 lines
Time capture
> 6 Msamples
Source types
Random, burst random, periodic chirp, burst chirp, pink noise, sine,
swept-sine (Option 1D2), arbitrary (Option 1D4)
Summary of Features on Standard Instrument
The following features are standard with the Keysight Technologies, Inc. 35670A:
Instrument modes
FFT analysis
Correlation analysis
Display formats
Histogram/time
Time capture
Measurement
Frequency domain
Frequency response
Linear spectrum
Cross spectrum Power spectrum
Coherence
Power spectral density
Time domain (oscilloscope mode)
Time waveform
Autocorrelation
Cross-correlation
Orbit diagram
Amplitude domain
Histogram, PDF, CDF
Trace coordinates
Linear magnitude
Unwrapped phase
Log magnitude
Real part
dB magnitude
Imaginary part
Group delay
Nyquist diagram
PhasePolar
Trace units
Y-axis amplitude: Combinations of units, unit value, calculated
value, and unit format describe y-axis
amplitude
Units: Volts, g, meters/sec2, inches/sec2, meters/
sec, inches/sec, meters, mils, inches, pascals,
Kg, N, dyn, lb, user-defined EUs
Unit value: rms, peak, peak-to-peak
Calculated value: V, V2, V2/Hz, √Hz, V2s/Hz (ESD)
Unit format: Linear, dB’s with user selectable dB reference,
dBm with user selectable impedance.
Y-axis phase: Degrees, radians
X-axis: Hz, cpm, order, seconds, user-defined
Single
Quad
Dual upper/lower traces
Small upper and largelower
Front/back overlay traces
Measurement state
Bode diagram
Waterfall display with skew, -45 to 45 degrees
Trace grids on/off
Display blanking
Screen saver
Display scaling
Autoscale
Selectable reference
Manual Scale
Linear or log X-axis
Input range tracking
Y-axis log
X & Y scale markers with expand and scroll
Marker functions
Individual trace markers
Coupled multi-trace markers
Absolute or relative marker
Peak search
Harmonic markers
Band marker
Sideband power markers
Waterfall markers
Time parameter markers
Frequency response markers
Signal averaging (FFT mode)
Average types (1 to 9,999,999 averages)
RMS Time exponential
RMS exponential
Peak hold
Time
03 | Keysight | 35670A Dynamic Signal Analyzer - Data Sheet
Averaging controls
Windows
Overload reject
Fast averaging on/off
Update rate select
Select overlap process percentage
Preview time record
HannUniform
Flat topForce/exponential
Measurement control
Start measurement
Pause/continue measurement
Triggering
Continuous (Freerun)
External (analog or TTL level)
Internal trigger from any channel
Source synchronized trigger
GPIB trigger
Armed triggers
Automatic/manual
RPM step
Time step
Pre- and post-trigger measurement delay
Tachometer input
± 4 V or ± 20 V range
40 mv or 200 mV resolution
Up to 2048 pulses/rev
Tach hold-off control
Source outputs
RandomBurst random
Periodic chirp
Burst chirp
Pink noise
Fixed sine
Note: Some source types are not available for use in optional
modes. See option description for details.
Input channels
Manual range
Anti-alias filters On/Off
Up-only auto range
AC or DC coupling
Up/down auto range
LED half range and overload
indicators
Floating or grounded
A-weight filters On/Off
Transducer power supplies (4 ma constant current)
Frequency
20 spans from 195 mHz to 102.4 kHz (1 channel mode)
20 spans from 98 mHz to 51.2 kHz (2 channel mode)
Digital zoom with 244 µHz resolution throughout the 102.4 kHz
frequency bands.
Resolution
100, 200, 400, 800 and 1600 lines
Math
+,-,*, /Conjugate
Magnitude
Real and imaginary
Square Root
FFT, FFT-1
LNEXP
*jw or /jw PSD
Differentiation
A, B, and C weighting
Integration
Constants K1 thru K5
Functions F1 thru F5
Analysis
Limit test with pass/fail
Data table with tabular readout
Data editing
Time capture functions
Capture transient events for repeated analysis in FFT, octave,
order, histogram, or correlation modes (except swept-sine).
Time-captured data may be saved to internal or external disk,
or transferred over GPIB. Zoom on captured data for detailed
nar­row­band analysis.
Data storage functions
Built-in 3.5 in., 1.44-Mbyte flexible disk also supports 720-KByte
disks, and 2 Mbyte NVRAM disk. Both MS-DOS and HP-LIF
formats are available. Data can be formatted as either ASCII or
binary (SDF). The 35670A provides storage and recall from the
internal disk, internal RAM disk, internal NVRAM disk, or external
GPIB disk for any of the following information:
Instrument setup states
User-math
Time capture buffers
Waterfall display data
Data tables
Trace data
Limit data
Keysight Instrument BASIC
Programs
Curve fit/synthesis tables
GPIB capabilities
Conforms to IEEE 488.1/488.2
Conforms to SCPI 1992
Controller with Keysight Instrument Basic Option
Calibration & memory
Single or automatic calibration
Built-in diagnostics & service tests
Nonvolatile clock with time/date
Time/date stamp on plots and saved data files
Online help
Access to topics via keyboard or index
Fan
On/Off
04 | Keysight | 35670A Dynamic Signal Analyzer - Data Sheet
Keysight 35670A Specifications
Instrument specifications apply after 15 minutes warm-up and
within 2 hours of the last self-calibration. When the internal
cooling fan has been turned OFF, specifications apply within
5 minutes of the last self-cal­i­bra­tion. All specifications are with
400 line frequency resolution and with anti-alias filters enabled
unless stated otherwise.
Frequency
Accuracy
Maximum range**
± 30 ppm (.003%)
1 channel mode
102.4 kHz,
51.2 kHz (opt AY6*)
2 channel mode
51.2 kHz
4 channel mode (Option AY6 only)
25.6 kHz
Spans
1 channel mode
195.3 mHz to 102.4 kHz
2 channel mode
97.7 mHz to 51.2 kHz
4 channel mode (Option AY6 only)
97.7 mHz to 25.6 kHz
Minimum resolution
1 channel mode
122 µHz (1600 line display)
2 channel mode
61 µHz (1600 line display)
4 channel mode (Option AY6 only)
122 µHz (800 line display)
Maximum real-time bandwidth
FFT span for continuous data acquisition) (Preset, fast averaging)
Single channel amplitude
Absolute amplitude accuracy (FFT)
(A combination of full scale accuracy, full scale flatness, and amplitude
linearity.)
± 2.92% (0.25 dB) of reading
± 0.025% of full scale
FFT full scale accuracy at 1 kHz (0 dBfs)
± 0.15 dB (1.74%)
FFT full scale flatness (0 dBfs) relative to 1 kHz
± 0.2 dB (2.33%)
FFT amplitude linearity at 1 kHz measured on +27 dBVrms range with
time avg, 0 to -80 dBfs
± 0.58% (0.05 dB) of reading
± 0.025% of full scale
Amplitude resolution
1 channel mode
25.6 kHz
(16 bits less 2 dB over-range) with averaging 0.0019% of full scale (typical)
2 channel mode
12.8 kHz
Residual DC response (FFT mode)
4 channel mode (Option AY6 only)
6.4 kHz
Frequency display (excludes A-weight filter) <-30 dBfs or 0.5 mVdc
FFT dynamic range
Measurement rate
(Typical) (Preset, fast averaging)
1 channel mode
≥ 70 averages/sec
2 channel mode
≥ 33 averages/sec
4 channel mode (Option AY6 only)
≥ 15 averages/sec
Display update rate
Typical (Preset, fast average off)
≥ 5 updates/Sec
Maximum
≥ 9 updates/Sec
(Preset, fast average off, single channel, single display,
undisplayed trace displays set to data registers)
Spurious free dynamic range
(Includes spurs, harmonic distortion, intermodulation distortion, alias
products). Excludes alias responses at extremes of span.
Source impedance = 50 Ω.
800 line display.
90 dB typical (<-80 dBfs)
*
Option AY6 single channel maximum range extends to 102.4 kHz without
anti-alias filter protection.
** Show all lines mode allows display of up to 131.1, 65.5 and 32.7 kHz
respectively. Amplitudes accuracy is unspecified and not alias protected.
05 | Keysight | 35670A Dynamic Signal Analyzer - Data Sheet
Full span FFT noise floor (typical)
Flat top window, 64 RMS averages, 800 line display
Typical noise floor vs. range for different frequency spans
-70 dB/0.03%
-80 dB/0.01%
dB below
full scale
51.2 kHz span
6.4 kHz span
-90 dB/0.003%
800 Hz span
-100 dB/0.001%
-51
-4
-31
0.0028 0.0089 0.028
-21
0.089
-11
0.280
27
22.4
Amplitude range (dBVrms / Vrms)
Harmonic distortion
Single Tone (in band), ≤ 0 dBfs
<-80 dBfs
Intermodulation distortion
Two tones (in-band), each ≤ –6.02 dBfs
<-80 dBfs
Spurious and residual responses
Source impedance = 50 Ω
<-80 dBfs
Frequency alias responses
Single tone (out of displayed range), ≤ 0 dBfs, ≤ 1 MHz
(≤ 200 kHz with IEPE transducer power supply On)
2.5% to 97.5% of the frequency span
<-80 dBfs
Lower and upper 2.5% of frequency span
<-65 dBfs
Input noise
Input noise level
Flat top window, –51 dBVrms range
Source impedance = 50 Ω
Above 1280 Hz
≤ 140 dBVrms/√ 2 Hz
160 Hz to 1280 Hz
≤ 130 dBVrms/√ 2 Hz
Note: To calculate noise as dB below full scale:
Noise [dBfs] = Noise [dB/√ 2Hz] + 10LOG(NBW) - Range [dBVrms]; where NBW is
the noise equivalent BW of the window (see below).
Window parameters
Uniform
Hann
Flat top
–3 dB bandwidth*
0.125% of span
0.185% of span
0.450% of span
Noise equivalent bandwidth*
0.125% of span
0.1875% of span
0.4775% of span
Attenuation at ± 1/2 bin
4.0 dB
1.5 dB
0.01 dB
Shape factor (–60 dB BW/-3 dB BW)
716
9.1
2.6
*
For 800 line displays. With 1600, 400, 200, or 100 line displays, multiply bandwidths by 0.5, 2, 4, and 8,
respectively.
06 | Keysight | 35670A Dynamic Signal Analyzer - Data Sheet
Single channel phase
Phase accuracy relative to external trigger
Common mode range
± 4.0 deg
16 time averages center of bin,
DC coupled 0 dBfs to -50 dBfs only
0 Hz < freq ≤ 10.24 kHz only
For Hann and flat top windows, phase is relative to a cosine wave at
the center of the time record. For the uniform, force, and exponential
windows, phase is relative to a cosine wave at the beginning of the time
record.
Cross-channel amplitude
FFT cross-channel gain accuracy
(Floating mode)
± 4 V pk
IEPE transducer power supply
Current source
Open circuit voltage
4.25 ± 1.5 mA
+26 to +32 Vdc
A-weight filter
Conforms to ANSI Standard S1.4-1983;
and to IEC 651-1979; 10 Hz to 25.6 kHz
Crosstalk
Between input channels, and
source-to-input (Receiving channel
source impedance = 50 Ω)
± 0.04 dB (0.46%)
Frequency response mode
Same amplitude range
At full scale: Tested with 10 RMS averages on the –11 to +27 dBVrms
ranges, and 100 RMS averages on the -51 dBVrms range
Cross-channel phase
Type 0 tolerance
< –135 dB below signal or
< –80 dBfs of receiving
channel, whichever
response is greater in
amplitude
Time domain
Specifications apply in histogram/time mode,
and unfiltered time display
DC amplitude accuracy
± 5.0 %fs
Rise time of –1 V to 0 V test pulse
< 11.4 µSec
Settling time of –1 V to 0 V test pulse
< 16 µSec to 1%
Input
Peak overshoot of –1 V to 0 V test pulse
< 3%
Input ranges (full scale)
(Auto-range capability)
Sampling period
Cross-channel phase accuracy (Same
conditions as cross-channel amplitude)
± 0.5 deg
+27 dBVrms (31.7 Vpk) to
–51 dBVrms
(3.99 mVpk) in 2 dB steps
Maximum input levels
42 Vpk
Input impedance
1 MΩ ± 10%
90 µF nominal
Low side to chassis impedance
Floating mode
Grounded mode
1 MΩ ± 30% (typical)
< 0.010 µF
≤ 100 Ω
AC coupling rolloff
Source impedance = 50 Ω
< 3 dB rolloff at 1 Hz
Common mode rejection ratio
Single tone at or below 1 kHz
–51 dBVrms to –11 dBVrms ranges
> 75 dB typical
–9 dBVrms to +9 dBVrms ranges
> 60 dB typical
+11 dBVrms to +27 dBVrms ranges
> 50 dB typical
1 channel mode
2 channel mode
4 channel mode
(Option AY6 only)
3.815 µSec to 2 Sec in 2x steps
7.629 µSec to 4 Sec in 2x steps
15.26 µSec to 8 Sec in 2x steps
07 | Keysight | 35670A Dynamic Signal Analyzer - Data Sheet
Trigger
Trigger modes
Maximum trigger delay
Post trigger
Pre trigger
No two channels can be further than
± 7168 samples from each other
Source output
Internal, source, external
(analog setting) GPIB
Sine, random noise, chirp, pink
noise, burst random, burst chirp
Amplitude range
AC: ± 5 V peak*
DC: ± 10 V*
* Vacpk + |Vdc| ≤ 10 V
8191 seconds
8191 sample periods
AC amplitude resolution
External trigger max. input
± 42 Vpk
External trigger range
Low range
High range
–2 V to +2 V
–10 V to +10 V
External trigger resolution
Low range
High range
Source types
15.7 mV
78 mV
Voltage > 0.2 Vrms
Voltage < 0.2 Vrms
2.5 mVpeak
0.25 mVpeak
DC offset accuracy
± 15 mV ± 3% of (|DC| + Vacpk )
settings
Pink noise adder
Add 600 mV typical when using
pink noise
Output impedance
<5Ω
± 20 mA peak
0.01 µF
Pulses per Revolution
0.5 to 2048
Maximum loading
Current
Capacitance
RPM
5 ≤ RPM ≤ 491,519
Sine amplitude accuracy at 1 kHz
± 4% (0.34 dB) of setting
RPM Accuracy
± 100 ppm (0.01%) (typical)
Rload > 250 Ω
0.1 Vpk to 5 Vpk
Tach level range
Low range
High range
Sine Flatness (relative to 1 kHz)
–4 V to +4 V
–20 V to +20 V
± 1 dB
0.1 V to 5 V peak
Harmonic and sub-harmonic distortion and spurious signals (In band)
Tach level resolution
Low range
High range
39 mV
197 mV
0.1 Vpk to 5 Vpk sine wave
Fundamental < 30 kHz
Fundamental > 30 kHz
Maximum tach input level
± 42 Vpk
Digital interfaces
Minimum tach pulse width
600 nSec
External keyboard
Maximum tach pulse rate
400 kHz (typical)
Tachometer
< –60 dBc
< –40 dBc
Compatible with PC-style
101-key keyboard
GPIB
Conforms to the following standards:
–– IEEE 488.1 (SH1, AH1, T6, TE0, L4, LE0, SR1, RL1, PP0, DC1, DT1, C1,
C2, C3, C12, E2)
–– EEE 488.2-1987
–– Complies with SCPI 1992
Data transfer rate (REAL 64 Format)
Serial port
Parallel port
External VGA port
< 45 mSec for a 401 point trace
08 | Keysight | 35670A Dynamic Signal Analyzer - Data Sheet
Computed order tracking – Option 1D0
Real time octave analysis – Option 1D1
(
Standards
–– Conforms to ANSI Standard S1.11 - 1986, Order 3, Type 1-D,
extended and optional frequency ranges
–– Conforms to IEC 651-1979 Type 0 Impulse, and ANSI S1.4
Maximum order x Maximum RPM
60
)
≤
Online (real time)
1 channel mode
2 channel mode
4 channel mode
25,600 Hz
12,800 Hz
6,400 Hz
Capture playback
1 channel mode
2 channel mode
4 channel mode
102,400 Hz
51,200 Hz
25,600 Hz
Number of orders ≤ 200
5 ≤ RPM ≤ 491,519
(Maximum usable RPM is limited by resolution, tach pulse rate,pulses/
revolution and average mode settings.)
–– 1 second stable average
–– Single tone at band center:
≤ ± 0.20 dB
–– Readings are taken from the linear total power spectrum bin.
It is derived from sum of each filter.
1/3-octave dynamic range
> 80 dB (typical) per ANSI S1.11-1986
Frequency ranges (at centers)
Online (real time)
Single channel
2 channel
4 channel
≤ 400
1/1 octave
0.063 - 16 kHz
0.063 - 8 kHz
0.063 - 4 kHz
1/3 octave
0.08 - 40 kHz
0.08 - 20 kHz
0.08 - 10 kHz
1000 RPM/second real-time (typical)
1/12 octave
0.0997 12.338 kHz
0.0997 6.169 kHz
0.0997 3.084 kHz
Maximum order
10
Capture playback
Delta order
0.1
1/1 octave
0.063 - 16 kHz
0.063 - 16 kHz
0.063 - 16 kHz
RPM step
30 (1 channel)
60 (2 channel)
120 (4 channel)
1/3 octave
0.08 - 31.5 kHz
0.08 - 31.5 kHz
0.08 - 31.5 kHz
1/12 octave
0.0997 49.35 kHz
0.0997 49.35 kHz
0.0997 49.35 kHz
± 1 dB (typical)
One to 12 octaves can be measured and displayed.
1/1-, 1/3-, and 1/12-octave true center fre­quen­cies related by the
formula: f(i+1)/f(i) = 2^(1/n); n=1, 3, or 12; where 1000 Hz is the
reference for 1/1, 1/3 octave, and 1000*2^(1/24) Hz is the reference for
1/12 octave. The marker returns the ANSI standard preferred frequencies.
Delta order
1/128 to 1/1
Resolution
(Maximum order)/(Delta order)
Maximum RPM ramp rate
1000 - 10,000 RPM run up
Order track amplitude accuracy
Swept sine measurements – Option 1D2
Dynamic range
130 dB
Tested with 11 dBVrms source level at: 100 mSec integration
Curve fit/synthesis – Option 1D3
20 Poles/20 zeroes curve filter frequency response synthesis pole/zero,
pole residue & polynomical format
Arbitrary waveform source – Option 1D4
Amplitude range
AC: ± 5 V peak*
DC: ± 10 V*
* Vacpk + |Vdc| ≤ 10 V
Record length
DAC resolution
0.2828 Vpk to 5 Vpk
0 Vpk to 0.2828 Vpk
# of points = 2.56 x lines of resolution,
or # of complex points = 1.28 x lines of
resolution
2.5 mV
0.25 mV
09 | Keysight | 35670A Dynamic Signal Analyzer - Data Sheet
General Specifications
General specifications
Safety standards
Abbreviations
CSA certified for electronic test and
measurement equipment per CSA C22.2,
NO. 231. This product is designed for
compliance to: UL1244, Fourth Edition IEC 348,
2nd Edition, 1978
EMI / RFI standards
CISPR 11
Acoustic power
LpA < 55 dB (Cooling fan at high speed setting)
< 45 dB (Auto speed setting at 25 °C)
dBVrms
dB relative to 1 volt rms
dBfs
dB relative to full scale amplitude range.
Full scale is approx. 2 dB below ADC overload.
Typical
Typical, non-warranted, performance specification
included to provide general product information.
Fan speed settings of high, automatic, and off are available. The fan off
setting can be enabled for a short period of time, except at higher ambient
temperatures where the fan will stay on.
Environmental operating restrictions
Operating:
Disk in drive
Operating:
No disk in drive
Storage & transport
4 °C to 45 °C
0 °C to 55 °C
–40 °C to 70 °C
Minimum
20%
15%
5%
Maximum
80% at 32 °C
95% at 40 °C
95% at 50 °C
Vibrations (5 - 500 Hz)
0.6 Grms
1.5 Grms
3.41 Grms
Shock
5 G (10 mSec 1/2 sine)
5 G (10 mSec 1/2 sine)
40 G (3 mSec 1/2 sine)
Max. altitude
4600 meters
(15,000 ft.)
4600 meters
(15,000 ft.)
4600 meters
(15,000 ft.)
AC power
90 Vrms - 264 Vrms (47 - 440 Hz)
350 VA maximum
DC power
12 VDC to 28 VDC nominal
200 VA maximum
DC current at 12 V
Standard: <10 A typical
4 channel: <12 A typical
Warm-up time
15 minutes
Weight
15 kg (33 lb) net
29 kg (64 lb) shipping
Ambient temp.
Relative humidity
(non-condensing)
Dimensions (Excluding bail handle and impact cover)
Height
190 mm (7.5")
Width
340 mm (13.4")
Depth
465 mm (18.3")
10 | Keysight | 35670A Dynamic Signal Analyzer - Data Sheet
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© Keysight Technologies, 2016
Published in USA, February 22, 2016
5966-3064E
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