Agilent 89441A Vector Signal Analyzer dc to 2.65 GHz Data Sheet Definitions Introduction Analog demodulation mode = Measurements with AM, Specifications describe warranted performance PM, and FM demodulation capabilities. over the temperature range of 0° to 45°C (except where noted) and include a 30-minute warm-up Baseband = dc to 10 MHz measurements. from ambient conditions, automatic calibrations enabled, auto-zero on, time domain calibration off, Baseband time = Time-domain measurements selected and anti-alias filter in, unless noted otherwise. by setting start frequency to exactly 0 Hz or choos- Supplemental characteristics identified as “typical” ing full span in 0 to 10 MHz measurements. or “characteristic” provide useful information by giving non-warranted performance parameters. dBc = dB relative to input signal level. Typical performance is applicable from 20° to 30°C. When enabled, automatic calibrations are periodi- dBfs = dB relative to full scale amplitude range cally performed to compensate for the effects of setting. Full scale is approximately 2 dB below temperature and time sensitivities. During the cali- ADC overload. bration, no signals > 0 dBm should be connected to the front panel inputs. FS or fs = Full scale; synonymous with amplitude range or input range. Feature summary RBW = Resolution bandwidth. Frequency dc to 2.650 GHz RF = 2 MHz to 2.65 GHz measurements. 51 to 3201 points Center frequency signal-tracking Scalar mode = Measurements with only frequency- Instrument modes domain analysis available. Frequency spans up to Scalar (frequency-domain only) 2648 MHz. Vector (amplitude and phase information in frequency and time domain and also SNR = Signal to noise ratio. time gating) Analog demodulation (AM/FM/PM) Vector mode = Measurements with frequency- and Sweep types time-domain capabilities. Frequency spans up to Continuous Manual 10 MHz in baseband, and 7 MHz for RF analysis Single (8 MHz with Option 89441A-AYH). Zoom time = Time-domain measurements selected by setting frequency parameters using center fre- quency and span values. Agilent 89441A technical data – feature summary Triggering Markers Free run External Marker search: Peak, next peak, next peak right, Input channel External arm next peak, left, minimum IF channel Programmable polarity Marker to: Center frequency, reference level, start Internal source and level frequency, stop frequency GPIB Pre and post delay Offset markers Trigger holdoff Couple markers between traces Marker functions: Peak track, frequency counter, band Averaging power (frequency, time, or demodulation Video Peak hold results), peak/average statistics Video exponential Simultaneous display of Time instantaneous and Time exponential average spectrum Memory and data-storage Disk devices Source types Nonvolatile RAM disk (100 Kbyte) CW Periodic chirp Volatile RAM disk (up to 20 Mbyte) Random noise Arbitrary (up to 8192 points) 90 mm (3.5-inch) 1.44 Mbyte flexible disk (LIF or MS-DOS® formats) Input External GPIB disk One channel Disk format and file delete, rename, and copy Second 10 MHz input channel (optional) Nonvolatile clock with time/date Auto-ranging (baseband only) Save/recall of: Trace data, instrument states, trace Overload indicators math functions, Instrument BASIC program, 50/75/1M Ω BNC (dc to 10 MHz) time-capture buffers 50 Ω Type-N, 75 Ω with minimum-loss pad (2 MHz to 2650 MHz) Online help Hard copy output Resolution/window shapes GPIB/HPGL plotters 1-3-10 bandwidth steps GPIB/RS-232/parallel printers Arbitrary RBW Plot to file Windows: Flat-top (high amplitude accuracy), Time stamp Gaussian-top (high dynamic range), Hanning Single-plot spooling (high frequency resolution), Uniform Detectors: normal, positive peak, sample Interfaces Measurement data GPIB (IEEE 488.1 and 488.2) Spectrum Time capture External reference in/out PSD Frequency response, External PC-style keyboard Main time coherence, cross Active probe power Gate time spectrum, and cross RS-232 (one port) Math function correlation (with second Centronics Data register 10 MHz input channel) LAN and second GPIB Auto correlation Instantaneous spectrum Standard data format utilities Data format Log magnitude Imaginary part Linear magnitude Group delay Optional features Phase (wrap or unwrap) Log/linear x-axis Second 10 MHz input channel (Option 89441A-AY7) Real part Extend time capture to 1 MSample (Option 89441A-AY9) Trace math Internal RF source (Option 89441A-AY8) Instrument BASIC (Option 89441A-1C2) Display Vector modulation analysis (Option 89441A-AYA) Digital video modulation analysis (Option 1, 2, or 4 grids 89441A-AYH) 1 to 4 traces displayed (single or overlay) Waterfall and spectrogram (Option 89441A-AYB) Auto-scaling Advanced LAN support (Option 89441A-UG7) Color (user definable) 3GPP W-CDMA analysis, includes code domain User trace title and information power (Option 89441A-080) Graticule on/off W-CDMA code domain power for exper. sys. Data label blanking (Option 89441A-B73) X-axis scaling ARIB 1.0-1.2 W-CDMA analysis (Option 89441A-B79) Instrument/Measurement state displays Enhanced data rates for GSM evol. (EDGE) External monitor (Option 89441A-B7A) 2 Agilent 89441A technical data – RF RF specifications apply with the receiver mode set Stability (spectral purity) (with standard high- to “RF section (2–2650 MHz).” precision frequency reference or equivalent with ≥ 5 dBm level) Frequency Phase noise (absolute and residual): Frequency tuning F ≤ 200 MHz Frequency range 2 MHz to 2650 MHz in 100 Hz offset < –103 dBc/Hz Frequency span 1 kHz offset < –112 dBc/Hz Scalar mode 1 Hz to 2648 MHz ≥ 10 kHz offset < –116 dBc/Hz Vector mode 1 Hz to 7 MHz (8 MHz with Option 89441A-AYH) 200 MHz ≤ F ≤ 1 GHz Center frequency tuning in 100 Hz offset < –96 dBc/Hz resolution 0.001 Hz 1 kHz offset < –104 dBc/Hz Number of frequency ≥ 10 kHz offset < –116 dBc/Hz points/span 51 to 3201 1 GHz ≤ F ≤ 2650 MHz Signal track (when enabled) keeps the largest in 100 Hz offset < –87 dBc/Hz measured signal at the center frequency. 1 kHz offset < –97 dBc/Hz Frequency accuracy (with standard high-precision ≥ 10 kHz offset < –116 dBc/Hz frequency reference) Frequency accuracy is the sum of initial accuracy, LO spurious sidebands aging, and temperature drift. Offset > 1 kHz < –75 dBc Offset ≤ 1 kHz Initial accuracy ±0.1 ppm f ≤ 2 GHz < –70 dBc Aging ±0.015 ppm/month in f > 2 GHz < –68 dBc Temperature drift ±0.005 ppm (0° to 55°C) in Frequency counter The frequency counter operates in scalar or vector mode. Frequency counter accuracy: Total accuracy is the sum of the frequency counter’s basic accuracy and the instrument’s frequency accuracy. Conditions/exceptions: Signal-to-noise ratio within resolution bandwidth, 20 dB minimum 1 Marker within ⁄2 resolution bandwidth of peak Unspecified for uniform window and resolution bandwidth < 5 Hz Spectral purity at 1 GHz Frequency counter basic accuracy 3 Agilent 89441A technical data – RF Resolution bandwidth Amplitude Range 312.5 µHz to 3 MHz in 1, 3, 10 Input range –50 dBm to +25 dBm sequence or arbitrary user-definable (5 dB steps) bandwidth Maximum safe input power Note: In scalar mode, the minimum resolution Average continuous +25 dBm (300 mW) bandwidth is 312.5 µHz and the maximum resolu- power tion bandwidth is a function of span. In vector DC voltage 25 V mode, the minimum resolution bandwidth is a function of span and the number of frequency A/D overload level > 1.5 dB above range points, and the maximum resolution bandwidth (typical) is a function of span only. Input port Passband Sideband Input channels 1 Window Selectivity1 flatness level VSWR Flat-top 2.45:1 + 0, –0.01 dB –95 dBc Range ≥ – 20 dBm 1.6:1 (12.7 dB return loss) Range ≤ –25 dBm 1.8:1 (11 dB return loss) Gaussian-top 4.0:1 + 0, –0.68 dB –125 dBc Impedance 50 Ω (75 Ω with minimum- Hanning 9.1:1 + 0, –1.5 dB –32 dBc loss pad Option Uniform 716:1 + 0, –4 dB –13 dBc 89441A-1D7) 1. Shape factor or ratio of –60 dB to –3 dB bandwidths. Connector Type-N Amplitude accuracy Accuracy specifications apply with flat-top window selected. Amplitude accuracy is the sum of absolute full-scale accuracy and amplitude linearity. Absolute full-scale accuracy (with signal level equal to range) 20° – 30°C 0° – 55°C ≥ –25 dBm range ±1 dB ±2 dB (0.5 dB typical) ≤ –30 dBm range ±1.5 dB ±3 dB (0.5 dB typical) Amplitude linearity 0 to –30 dBfs < 0.10 dB –30 to –50 dBfs < 0.15 dB –50 to –70 dBfs < 0.20 dB In vector mode, relative level accuracy within a single span is the sum of vector mode frequency response and amplitude linearity. Vector mode frequency response ±0.4 dB (relative to the center frequency) 4 Agilent 89441A technical data – RF Dynamic range Phase (vector mode) Dynamic range indicates the amplitude range that Phase specifications apply with flat-top window is free of erroneous signals within the measure- selected. ment bandwidth. Deviation from linear phase (relative to best Harmonic distortion (with a single full scale signal fit line with peak signal level within 6 dB of at the input) full scale): ±5 deg ≥ –25 dBm range < –75 dBc ≤ –30 dBm range < –54 dBc Time (vector mode) Time-sample resolution = 1/(k*span(Hz)) [second]; Third-order intermodulation < –75 dBc where k = 1.28 for zoom time. distortion (with two input tones at 6 dB below full scale and ≥ 10 MHz) Main time length = (number of frequency points – 1) ÷ span (Hz) [second]; for resolution bandwidth General spurious (with input signal level equal to in arbitrary and auto-coupled mode. range and input frequency ≤ 2650 MHz) For spans ≤ 1.5 MHz and for < –75