Catalog excerpts
Agilent E8257D PSG Microwave Analog Signal Generator Data Sheet The Agilent E8257D is a fully synthesized signal generator with high output power, low phase noise, and optional ramp sweep capability. Specifications apply over a 0 to 55 °C range, unless otherwise stated, and apply after a 45 minute warm-up time. Supplemental characteristics, denoted as typical, nominal, or measured, provide additional (non-warranted) information at 25 °C, which may be useful in the application of the product. Unless otherwise noted, this data sheet applies to units with serial numbers ending with 50420000 or greater. Definitions Specifications (spec): Represents warranted performance for instruments with a current calibration. Typical (typ): Represents characteristic performance which is non-warranted. Describes performance that will be met by a minimum of 80% of all products. Nominal (nom): Represents characteristic performance which is non-warranted. Represents the value of a parameter that is most likely to occur; the expected mean or mode of all instruments at room temperature (approximately 25 °C). Measured: Represents characteristic performance which is non-warranted. Represents the value of a parameter measured on an instrument during design verification.
2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Step (digital) sweep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Ramp (analog) sweep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....
3 Range1 Option 520 250 kHz to 20 GHz Option 521 10 MHz to 20 GHz Option 532 250 kHz to 31.8 GHz Option 540 250 kHz to 40 GHz Option 550 250 kHz to 50 GHz Option 567 250 kHz to 67 GHz (operational up to 70 GHz) Resolution CW 0.001 Hz All sweep modes2 0.01 Hz CW switching speed3, 4, 7 Standard Opt UNX Opt UNY < 11 ms (typ) <11 ms (typ) < 21 ms (typ) < 7 ms (nom) < 7 ms (nom) < 17 ms (nom) Phase offset Adjustable in nominal 0.1 ° increments Frequency bands Band Frequency range N5 1 250 kHz to 250 MHz 1/8 2 > 250 to 500 MHz 1/16 3 > 500 MHz to 1 GHz 1/8 4 > 1 to 2 GHz 1/4 5 > 2 to 3.2 GHz 1/2...
4 Operating modes • Step sweep of frequency or amplitude or both (start to stop) • List sweep of frequency or amplitude or both (arbitrary list) Sweep range Frequency sweep Within instrument frequency range Amplitude sweep Within attenuator hold range (see “Output” section) Dwell time 1 ms to 60 s Number of points 2 to 65535 (step sweep) 2 to 1601 per table (list sweep) Triggering Auto, external, single, or GPIB Settling time Standard Opt UNX Opt UNY Frequency1 < 9 ms (typ) < 9 ms (typ) < 19 ms (typ) Amplitude < 5 ms (typ) < 5 ms (typ) < 5 ms (typ) Operating modes • Synthesized frequency...
7 Maximum output power (measured) Step attenuator (Option 1E1)1 Options 520, 521, 532, and 540 0 dB and 5 dB to 115 dB in 10 dB steps With Optimize S/N on2 0 dB to 115 dB in 5 dB steps Options 550 and 567 0 dB to 90 dB in 10 dB steps Attenuator hold range Minimum From –20 dBm to maximum specified output power with step attenuator in 0 dB position. Can be offset using Option 1E1 attenuator. Amplitude switching speed ALC On: < 6 ms (typ)3 ALC Off: <10 ms (typ) (not including power search)4 14 16 18 20 22 24 26 28 30 32 34 0 0.5 1 1.5 2 Option 521 maximum output power Harmonic filters - on...
8 1. Specifications apply in CW and list/step sweep modes over the 15 to 35 ºC temperature range with the ALC on. Degradation outside this temperature range, for power levels > -10 dBm is typically < 0.3 dB (except < 0.5 dB from 2 to 3.2 GHz and with Option 521 below 500 MHz). In ramp sweep mode (with Option 007), specifications are typical. For instruments with Type-N connectors (Option 1ED), specifications are degraded typically 0.2 dB above 18 GHz. 2. When Option UNX or UNY low phase noise mode is on, specifications below 250 MHz apply only when Option 1EH low-pass filters below 2 GHz...
9 1. Options 550 and 567: 0.03dB/°C (typ) above 2 GHz. Option 521: 0.03 dB/°C (typ) below 500 MHz. 2. Compatible with Agilent EPM Series (E4418B and E4419B) power meters. 3. For Options 550 and 567, SWR is 1.7:1 (typ) from 1.7 to 2.0 GHz when the step attenuator is set to 0 dB. 4. For Option 521, maximum reverse power is 1/2 watt when Option 1E1 step attenuator is set at or above 5 dB. When Option 1E1 step attenuator = 0 dB, or for units without Option 1E1, maximum reverse power is 2 watts above 250 MHz, 1/2 watt below 250 MHz. Resolution 0.01 dB Temperature stability 0.02 dB/°C (typ)1 User...
10 Spectral purity Harmonics1 dBc at +10 dBm or maximum specified output power, whichever is lower Frequency Options 520, 532, Option 521 540, 550, 567 < 1 MHz -25 dBc (typ) --- 1 to < 10 MHz -25 dBc --- 10 to < 60 MHz -28 dBc -25 dBc 10 to < 60 MHz with Option 1EH Filters On: -45 dBc2 -35 dBc2, 3 0.06 to 2 GHz -30 dBc -25 dBc 0.06 to 2 GHz with Option 1EH Filters On: -55 dBc2 -35 dBc2, 3 > 2 to 20 GHz -55 dBc -35 dBc > 20 to 67 GHz -50 dBc (typ) --- 10 to 250 MHz, Option UNX or UNY Low Phase Noise mode: With Option 1EH Filters Off: -8 dBc (typ) -8 dBc (typ) With Option 1EH Filters On: -55...
11 1. Sub-harmonics are defined as Carrier Freq/N. Specifications are typical for sub-harmonics beyond specified frequency range. For Option 567, specifications are typical for carrier frequencies above 50 GHz. 2. Specifications are typical for spurs beyond specified frequency range (beyond 50 GHz for Option 567). Specifications apply for CW mode, without modulation. In ramp sweep mode (Option 007), performance is typical for offsets > 1 MHz. 3. Excluding external mechanical vibration. 4. For offsets > 10 kHz. 5. Calculated from phase noise performance in CW mode only at +10 dBm. For other...
