Manuale d’uso / di manutenzione del prodotto E4438C del fabbricante Agilent Technologies
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Agilent E4438C ESG V ector Signal Generator Data Sheet Notice Please contact Agilent T echnologies for the latest information or check the ESG W eb site at www .
2 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Key Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Agilent T echnologies E4438C ESG vector signal generator incorporates a broad array of capabilities for testing both analog and digital communications systems. Flexible options provide test solutions that will evaluate the performance of nearly all current and proposed air interface standards.
4 • Expandable architecture • Broad frequency coverage • Choice of electronic or mechanical attenuator • Superior level accuracy • Wideband FM and F M • Step and list sweep, both frequency.
5 Frequency range Option 1 501 250 kHz to 1 GHz 502 250 kHz to 2 GHz 503 250 kHz to 3 GHz 504 250 kHz to 4 GHz 506 250 kHz to 6 GHz [requires Option UNJ] Frequency minimum 100 kHz 2 Frequency resolution 0.01 Hz Frequency switching speed 3 Option 501-504 With Option UNJ Option 506 Freq.
6 Power Option 501-504 With Option UNB Option 506 250 kHz to 250 MHz +1 1 to –136 dBm +15 to –136 dBm +12 to –136 dBm > 250 MHz to 1 GHz +13 to –136 dBm +17 to –136 dBm +14 to –136 dBm .
7 Level accuracy with digital modulation turned on [relative to CW] Conditions: [with PRBS modulated data; if using I/Q inputs, √ I 2 + Q 2 = 0.5 V rms , nominal] 1 Level accuracy with ALC on π /4 DQPSK or QPSK formats Conditions: With raised cosine or root-raised cosine filter and a ≥ 0.
8 Repeatability and linearity Relative level accuracy measures the accuracy of a step change from any power level to any other power level. This is useful for large changes (i.e. 5 dB steps). 1 Specifications for Frequency and Power Characteristics 1.
1. Repeatability and relative level accuracy are typical for all frequency ranges. 9 Linearity CW or GSM, 1900 MHz, attenuator hold On, ALC On -10 -8 -6 -4 -2 0 81 2 Amplitude (dBm) ALC offset error (dB) 0.3 0.25 0.2 0.15 0.1 0.05 0 -0.05 -0.1 -0.15 -0.
10 SSB Phase noise [at 20 kHz offset] 1 Standard With Option UNJ at 500 MHz (< –124 dBc/Hz) < –135 dBc/Hz, (< –138 dBc/Hz) at 1 GHz (< –118 dBc/Hz) < –130 dBc/Hz, (< –134.
11 Characteristic SSB phase noise With Option 1E5 With Option UNJ fc = 850 MHz fc = 850 MHz fc = 1900 MHz fc = 1900 MHz fc = 2200 MHz fc = 2200 MHz Phase noise modes 1 and 2 at fc = 900 MHz fc = 5.
12 Band Frequency range N number 1 250 kHz to ≤ 250 MHz 1 2 > 250 MHz to ≤ 500 MHz 0.5 3 > 500 MHz to ≤ 1GHz 1 4 > 1 to ≤ 2 GHz 2 5 > 2 to ≤ 4 GHz 4 6 > 4 to ≤ 6 GHz 8 Maximum deviation 3 Standard With Option UNJ N x 8 MHz N x 1 MHz Resolution 0.
13 Resolution 0.1% of set deviation Modulation frequency response 3, 4 Standard Maximum Allowable rates [3 dB BW] Mode deviation F M path 1 F M path 2 Normal BW N x 80 rad DC to 100 kHz DC to 100 kHz High BW 6 N x 8 rad (DC to 1 MHz) (DC to 0.9 MHz) N x 1.
14 Rates [1 dB bandwidth] 1 ALC on (400 Hz to 40 MHz) ALC off (DC to 40 MHz) Wideband AM using external I input only Sensitivity 0.5 V = 100% Input impedance 50 Ω , nominal On/off ratio 1 ≤ 4 GHz > 80 dB > 4 GHz (> 64 dB) Rise/fall times 1 (150 ns) Minimum width 1 ALC on (2 µs) ALC off (0.
Specifications for Analog Modulation W aveforms Sine, square, ramp, triangle, pulse, noise Rate range Sine 0.1 Hz to 100 kHz Square, ramp, triangle 0.1 Hz to 20 kHz Resolution 0.1 Hz Frequency accuracy Same as RF reference source Swept sine mode [frequency , phase continuous] Operating modes T riggered or continuous sweeps Frequency range 0.
16 Input voltage RF On 0 V RF Off –1.0 V Linear control range 0 to –1 V On/off ratio 1 Condition: V in below –1.05 V ≤ 4 GHz > 75 dB > 4 GHz (> 64 dB) Rise/fall time 1 Condition: With.
17 I/Q inputs Input impedance 50 Ω or 600 Ω Full scale input 1 √ I 2 + Q 2 = 0.5 V rms I/Q bandwidth using external I/Q source (ALC off) 2 I/Q bandwidth using internal I/Q source (Options 001, 002, 601, 602) Specifications for I/Q Characteristics 1.
18 Source Parameter Range I/Q baseband inputs Impedance 50 or 600 Ω I offset [600 Ω only] ± 5 V Q offset [600 Ω only] ± 5 V I/Q baseband outputs I/Q offset adjustment ± 3 V I/Q offset resolut.
19 Clock Sample rate 1 Hz to 100 MHz Resolution 0.001 Hz Accuracy Same as timebase +2 -42 [in non-i nteger applications] Baseband filters 40 MHz used for spur reduction 2.
20 Basic modulation types [custom format] PSK BPSK, QPSK, OQPSK, π /4DQPSK, 8PSK, 16PSK, D8PSK MSK User-defined phase offset from 0 to 100° ASK User-defined depth from 0.
21 Specifications for I/Q Characteristics 1. Parentheses denote typical performance. 2. Valid for 23° ±5° C. Specifications for Signal Personality Characteristics 3GPP W -CDMA [arbitrary waveform m.
22 Specifications for Signal Personality Characteristics 1. Valid for 23° ±5° C. 2. Parentheses denote typical performance. 3. Measurements performed with 30 kHz BW, relative to power in one carrier . 4. Measurements performed with 30 kHz BW, relative to total power .
23 Number of tones 2 to 1024 T one spacing 1 kHz to 50 MHz, limited by 80 MHz I/Q bandwidth T one power (relative) 0 to –50 dB Phase distribution Fixed, random or parabolic Suppression level –50 to –90 dBc, depending on number of tones and available calibration time.
24 EVM ( < 1%, –40 dB) The EVM was measured with an 89641A vector signal analyzer with Option B7R. Instrument and software settings listed below .
25 Modulation QPSK π /4DQPSK 16QAM 2FSK GMSK Filter Root Nyquist Gaussian Filter factor [ a or B b T] 0.25 0.25 0.25 0.5 0.5 Modulation index N/A N/A N/A 0.5 N/A Symbol rate [Msym/s] 4 4 4 1 1 Error vector magnitude 3, 4 Shift error 3, 4 Global phase error 3, 4 [% rms] [% rms] [degrees rms] fc = 1 GHz 1.
26 Multiframe output data generation Coding scheme Full-rate speech [TCH/FS] CS-1, CS-4 Data PN9 or PN15 The selected data sequence is coded continuously across the RLC data block as per ETSI TS 100 909, 3GPP TS 05.03, V8.9.0, 2000-11 [release 1999] An independent version of the selected data sequence is coded across the MAC header .
27 Multiframe output data generation Coding scheme MCS-1: uplink and downlink, MCS-5: uplink and downlink, MCS-9: uplink and downlink, E- TCH/F43.2 Data PN9 or PN15 The selected data sequence is fully coded continuously across the RLC data blocks according to MCS-1, MCS-5, MCS-9 or E- TCH/F43.
28 This is a system of two instruments; an ESG with Option 300, and a VSA with Option 300. Both are required. Option 300 for the ESG requires Option 601 or 602, the TDMA personalities [Option 402], and the UN7 BER board. The VSA functions as an IF downconverter .
29 Clock rate 100 Hz to 60 MHz Supported data patterns PN9, 11, 15, 20, 23 Resolution 10 digits Bit sequence length 100 bits to 4.294 Gbits after synchronization Features Input clock phase adjustment and gate delay Adjustable input threshold Hi/lo threshold selectable from 0.
30 Power requirements 90 to 254 V; 50, or 60 Hz; 300 W maximum, power factor corrected. Not for 400 Hz use. 1 Operating temperature range 2 0 to 55 °C Storage temperature range –40 to 71 °C Shock and vibration Meets MIL-STD-28800E T ype III, Class 3.
31 T ransit case Part number 9211-1296 10 MHz input Accepts a 1, 2, 5, or 10 MHz ±10 ppm [standard timebase] or ±1 ppm [high-stability timebase] reference signal for operation with an external timebase. Nominal input level –3.5 to +20 dBm, impedance 50 ohms.
32 Data clock input The CMOS 1 compatible data clock connector accepts an externally supplied data-clock input for digital modulation applications. The expected input is a bit clock signal where the falling edge is used to clock the data and symbol sync signals.
33 External 1 input This BNC input connector accepts a ±1 V peak signal for AM, FM, pulse, burst, and phase modulation. For all these modulations, ±1 V peak produces the indicated deviation or depth.
34 _ _ _ _ I and Q out I and Q are used in conjunction with I and Q to provide a balanced baseband stimulus. Balanced signals are signals present in two separate conductors that are symmetrical about the common mode offset, and are opposite in polarity [180 degrees out of phase].
35 With Option UN7 BER data, BER clock Accepts CMOS 1 or 75 Ω input. Polarity is selected. BER gate Clock duty and inputs cycle is 30% to 70%. [SMB, rear panel] BER sync loss output Outputs a CMOS 1 signal that is low when sync is lost. V alid only when measure end signal is high.
36 RS-232 connector This male DB-9 connector is an RS-232 serial port that can be used for controlling the signal generator remotely . It is functionally equivalent to the GPIB connector . The fo llowi ng table shows the description of the pinouts. The pin configuration is shown below .
37 • 501 1 GHz frequency range • 502 2 GHz frequency range • 503 3 GHz frequency range • 504 4 GHz frequency range • 506 6 GHz frequency range [requires option UNJ, includes mechanical atten.
38 • RF Source Basics, a self-paced tutorial (CD-ROM), literature number 5980-2060E. • Digital Modulation in Communications Systems—An Introduction , Application Note 1298, literature number 5965-7160E.
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See the ESG W eb page for the latest information Get the latest news, product and support information, application literature, f irmware upgrades and more. Agilent’s Inter net address for the ESG is: www .agilent.com/find/esg www .agilent.com/find/emailupdates Get the latest information on the products and applications you select.
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In una situazione in cui hai già il Agilent Technologies E4438C, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Agilent Technologies E4438C.
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