Atec Agilent-E8247C, Agilent-E8257C User Manual

Agilent E8247C/57C PSG CW and Analog Signal Generators

Data Sheet

All specifications and characteristics 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 or nominal, provide additional (non-warranted) information.

Definitions

Specifications (spec): represent warranted performance.

Typical (typ): performance is not warranted. It applies at 25 °C. A minimum of 80% of all

products meet typical performance.

Nominal (nom): values are not warranted. They represent the value of a parameter that is most likely to occur; the expected or mean value. They are included to facilitate the application of the product.

Standard (std): No options are included when referring to the signal generator unless noted otherwise.

PSG Signal Generators

Option 520 Option 540

250 kHz to 20 GHz 250 kHz to 40 GHz

CW only E8247C E8247C Analog E8257C E8257C Vector E8267C

(See E8267C data sheet for PSG vector signal generator specifications)

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3

Digital sweep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Ramp (analog) sweep . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4

Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5

Spectral purity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7

Frequency modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Phase modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9

Amplitude modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

External modulation inputs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Simultaneous modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Internal modulation source . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Pulse modulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Internal pulse generator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Remote programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

General specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Input/Output Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Front panel connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Rear panel connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14

Options, Accessories, and Related Products . . . . . . . . . . . . . . . . . . . . . . . . . . .15

Web Resources . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Related Agilent Literature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16

Table of Contents

Range

Option 520 250 kHz to 20 GHz Option 540 250 kHz to 40 GHz

Resolution

CW 0.001 Hz

All Sweep modes 0.01 Hz Accuracy Aging rate ± temperature effects

± line voltage effects

Switching speed

< 12 ms (typical)

Phase offset Adjustable in nominal 0.1 ° increments. Frequency bands

Band Frequency range N #

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 6 > 3.2 to 10 GHz 1 7 > 10 to 20 GHz 2 8 > 20 to 40 GHz 4

Internal timebase reference oscillator

Standard Option UNR

Aging rate < ±1 x 10

–7

/year or < ±3 x10–8/year or

< ±4.5 x 10

–9

/day < ±2.5 x 10

–10

/day

after 45 days after 30 days

Temperature effects (typical) < ±5 x 10–80 to 55 °C < ±4.5 x 10–90 to 55 °C Line voltage effects (typical) < ±2 x 10–9for < ±2 x 10

–10

for

+5% –10% change ±10% change

External reference frequency 1, 2, 2.5, 5, 10 MHz 10 MHz only

(within 0.2 ppm) (within 1 ppm)

Reference output

Frequency 10 MHz Amplitude > +4 dBm into 50 Ω load (typical)

External reference input

Amplitude > –3 dBm Opt UNR 5 dBm ±5 dB

Input impedance 50 Ω (nominal)

Specifications

Frequency

1. Useable to 100 kHz.

2. In ramp sweep mode (Option 007), resolution is limited with narrow spans and slow sweep speeds. Refer to ramp sweep specifications for more information.

3. To within 0.1 ppm of final frequency above 250 MHz or within 100 Hz below 250 MHz.

4. To optimize phase noise use 5 dBm ± 2 dB.

Digital sweep

Ramp (analog) sweep

(Option 007)

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

Dwell time 1 ms to 60 s Number of points 2 to 1601 (step sweep)

2 to 1601 per table (list sweep)

Triggering Auto, external, single, or GPIB

Operating modes Synthesized frequency sweep

(start/stop), (center/span), (swept CW) Power (amplitude) sweep (start/stop) Manual sweep RPG control between start and stop frequencies Alternate sweep Alternates successive sweeps between current and stored states

Sweep span range Settable from minimum2to full range Maximum sweep rate Start frequency Maximum sweep rate Max span for

100ms sweep

250 kHz to < 0.5 GHz 25 MHz/ms 2.5 GHz

0.5 to < 1 GHz 50 MHz/ms 5 GHz 1 to < 2 GHz 100 MHz/ms 10 GHz 2 to < 3.2 GHz 200 MHz/ms 20 GHz ≥ 3.2 GHz 400 MHz/ms 36.8 GHz

Frequency accuracy ± 0.05% of span ± timebase (at 100 ms sweep time, for

sweep spans less than maximum values given above) Accuracy improves proportionally as sweep time increases

Sweep time (forward sweep, not including bandswitch and retrace intervals) Resolution 1 ms Manual mode Settable 10 ms to 99 seconds Auto mode Set to minimum value determined by maximum sweep rate

and 8757D setting

Triggering Auto, external, single, or GPIB Markers 10 independent continuously variable frequency markers

Display Z-axis intensity or RF amplitude pulse Functions M1 to center, M1/M2 to start/stop, marker delta

Two-tone (master/slave) measurements

Two PSG’s can synchronously track each other, with independent control of start/stop frequencies

Network analyzer compatibility Fully compatible with Agilent 8757D scalar network analyzer

Also useable with Agilent 8757A/C/E scalar network analyzers for making basic swept measurements.

1. During Ramp sweep operation, AM and Pulse Modulation are useable but not specified; FM, Phase

Modulation, Wideband AM and I/Q modulation are not useable.

2. Minimum settable sweep span is proportional to carrier frequency and sweep time. Actual sweep span

may be slightly different than desired setting for spans less than [0.00004% of carrier frequency or 140 Hz] x [sweep time in seconds]. Actual span will always be displayed correctly.

3. Typical accuracy for sweep times > 100 ms can be calculated from the equation:

[(0.005% of span)/(sweep time in seconds)] ± timebase. Accuracy is not specified for sweep times < 10 ms.

4. For Master/Slave operation use Agilent Technologies part #8120-8806 Master/Slave interface cable.

5. When measuring low-pass devices in AC mode, dynamic range may be reduced up to 10dB below 3.2 GHz

6. GPIB system interface is not supported with 8757A/C/E, only with 8757D. As a result, some features of

8757A/C/E, such as frequency display, pass-through mode, and alternate sweep, do not function with PSG signal generators.

Power1(dBm) Frequency range Standard Option 1EA 20 GHz models

250 kHz to 3.2 GHz –20 to +13 –20 to +16 250 kHz to 3.2 GHz (with Option 1E6) –20 to +13 –20 to +13 > 3.2 to 20 GHz –20 to +13 –20 to +20

40 GHz models

250 kHz to 3.2 GHz –20 to +9 –20 to +15 250 kHz to 3.2 GHz (with Option 1E6) –20 to +9 –20 to +12 > 3.2 to 20 GHz –20 to +9 –20 to +18 > 20 to 40 GHz –20 to +9 –20 to +14 20 GHz models with step attenuator (Option 1E1) 250 kHz to 3.2 GHz –135 to +11 –135 to +15 250 kHz to 3.2 GHz (with Option 1E6) –135 to +11 –135 to +12 > 3.2 to 20 GHz –135 to +11 –135 to +18 40GHz models with step attenuator (Option 1E1) 250 kHz to 3.2 GHz –135 to +7 –135 to +14 250 kHz to 3.2 GHz (with Option 1E6) –135 to +7 –135 to +11 > 3.2 to 20 GHz –135 to +7 –135 to +16 > 20 to 40 GHz –135 to +7 –135 to +12

Step attenuator 0 dB and 5 to 115 dB in 10 dB steps3(Option 1E1)

Attenuator hold range (Same as max power sweep 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

CW or analog modulation < 5 ms (typical) When using power search < 25 ms (typical)

Level accuracy3(dB) Frequency > +10 dBm +10 to –10 dBm –10 to –20 dBm

250 kHz to 2 GHz ±0.6 ±0.6 ±1.4 2 GHz to 20 GHz ±0.8 ±0.8 ±1.2 > 20 to 40 GHz ±1.0 ±0.9 ±1.3

Output

1. Maximum power specification is warranted from 15 to 35º C, and is typical from 0 to 15º C. Maximum power over the 35 to 55º C range typically degrades less than 2 dB.

2. To within 0.1 dB of final amplitude within one attenuator range

3. Specifications apply in CW and List/Step sweep modes over the 15 to 35º C temperature range. Degradation outside this range, for power levels > –10 dBm, is typically < 0.3 dB. 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.

20 GHz Models with Option 1EA

0 5000 10000 15000 20000

Frequency (MHz)

40 GHz Models with Option 1EA

0 10000 20000 30000 40000

Frequency (MHz)

20 GHz models with Option 1EA 40 GHz models with Option 1EA

Measured maximum available power Measured maximum available power

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