8648B AGILENT TECHNOLOGIES, 8648B Datasheet - Page 5

• Manufacturer Part Number: 8648B
• Description: SIGNAL GENERATOR FREQUENCY / PULSE, 2GHZ
• Manufacturer: AGILENT TECHNOLOGIES

Specifications of 8648B

• Signal Generator Type: Signal
• Bandwidth: 2GHz
• Modulation Type: AM, FM, Phase
• Supply Voltage Range: 90V To 264V
• External Height: 165mm
• External Width: 330mm
• External Depth: 368mm
• Lead Free Status / RoHS Status: na

Resolution
Attenuator hold level range
250 kHz to 1 GHz
> 1 to 3 GHz
> 3 to 4 GHz
Level accuracy (dB)
Freq range
250 kHz to 2 GHz ±0.5
2 to 3 GHz
3 to 4 GHz
Amplitude switching speed
Without power search
When using power search
Reverse power protection
250 kHz to 2 GHz
> 2000 to 4 GHz
Max DC voltage
SWR (typical)
250 kHz to 1 GHz
1 to 2 GHz
2 to 3 GHz
3 to 4 GHz
Output impedance
1. For 23 °C ±5 °C. Accuracy degrades by 0.02 dB/°C over the full temperature range and by 0.3 dB above +7 dBm (degraded by 0.5 dB above +10 dBm with Option UNB).
2. The reverse power protection circuitry triggers at nominally 1 watt.
3. Parentheses denote typical performance.
4. Refer to frequency bands on page 4 to compute specifications.
5. Performance is typical for spurs at frequencies above the maximum operating frequency of the instrument. Performance typically is –60 dBc between 225 and 249.999 MHz.
6. Specifications apply for FM deviations < 100 kHz and are not valid for FM.
7. Specifications apply for CW mode only.
Level accuracy specification maintained only with return to calibration.
For non-constant amplitude digital formats, unspecified spur levels occur up to the second harmonic of the baseband rates.
+7 to –120 dBm
(+10 to –120 dBm, –120 to
Option UNB)
±0.9
±0.9
1
Typical level accuracy
2
Frequency (MHz)
0.02 dB
Standard
23 dB
20 dB
17 dB
< 30 ms, typical
< 300 ms, typical
50 watts
25 watts
50 V
Standard
< 1.5:1
< 1.4:1
< 1.3:1
< 1.5:1
50
Output power
–127 dBm
±0.9
±0.9 (±1.5,
Option UNB)
±0.5
Option UNB
27 dB
26 dB
23 dB
Option UNB
< 1.3:1
< 1.3:1
< 1.4:1
< 1.5:1
< –127 dBm
(±1.5)
(±2.5)
(±2.5)
Spectral purity
SSB phase noise
at 500 MHz (< –120 dBc/Hz) < –134 dBc/Hz, (< –138 dBc/Hz)
at 1 GHz
at 2 GHz
at 3 GHz
at 4 GHz
Residual FM
Harmonics
Nonharmonics
250 kHz to 250 MHz
250 MHz to 500 MHz < –65 dBc (< –75 dBc) < –80 dBc < –80 dBc
500 MHz to 1 GHz
1 to 2 GHz
> 2 GHz
Subharmonics
> 1 GHz
Characteristic ESG-A and ESG-D series SSB phase
noise at 1 GHz (phase noise modes 1 and 2)
ESG-AP and ESG-DP series
ESG-A and ESG-D series
Phase noise mode 1
Phase noise mode 2
1 GHz
( +4 dBm ( +7.5 dBm, Option UNB) output level) < –30 dBc
(typical below 1 GHz)
(< +7 dBm (< +10 dBm, Option UNB) output level)
Option IE5
Standard
4
ESG-A and
ESG-D series
None
(< –40 dBc)
ESG-A and
ESG-D Series
(< –116 dBc/Hz) < –130 dBc/Hz, (< –134 dBc/Hz)
(< –110 dBc/Hz) < –123 dBc/Hz, (< –127 dBc/Hz)
(< –104 dBc/Hz) < –120 dBc/Hz, (< –124 dBc/Hz)
(< –104 dBc/Hz) < –118 dBc/Hz, (< –122 dBc/Hz)
(CW mode, 0.3 to 3 kHz BW, CCITT, rms)
3
(at 20 kHz offset)
ESG-A andESG-AP and
ESG-D series
> 3 kHz
offset
< –65 dBc
(< –65 dBc) (< –75 dBc) < –80 dBc < –80 dBc
(< –59 dBc) (< –69 dBc) < –74 dBc < –74 dBc
(< –53 dBc) (< –63 dBc) < –68 dBc < –68 dBc
PN1
PN2
< N x 1 Hz (< N x 0.5 Hz, typical)
< N x 2 Hz
< N x 4 Hz
ESG-AP and
ESG-DP Series
> 10 kHz
offset
(< –75 dBc) < –65 dBc (< –75 dBc)
PN2
6
3
ESG-AP and
ESG-DP series
None
PN1
ESG-DP series
> 3 kHz
offset
None
5
> 10 kHz
offset
7
3
5