8648B AGILENT TECHNOLOGIES, 8648B Datasheet - Page 8

• 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

8
1. AM is typical above 2 GHz or if wideband AM or I/Q modulation is simultaneously enabled.
2. With ALC off, specifications apply after the execution of power search. With ALC on, specifications apply for pulse repetition rates 10 kHz and pulse widths 5 µs.
3. With high performance pulse modulation (Option 1E6) installed, all maximum power specifications drop by 4 dB.
Amplitude modulation
Range
(envelope peak maximum specified power)
Resolution
Rates
Accuracy
Distortion
30% AM
90% AM
External inputs
Sensitivity
Input impedance
Paths AM 1 and AM 2 are summed internally for composite mod-
ulation. Either path may be switched to any one of the modulation
sources: Int, Ext 1, Ext 2.
Wideband AM (ESG-DP and ESG-D series only)
Rate (1 dB bandwidth, typical)
ALC On
ALC Off
External input
Sensitivity
Input impedance
(3 dB bandwidth)
(1 kHz rate)
(1 kHz rate, THD)
1
(fc > 500 kHz)
0 to 100%
0.1%
dc/10 Hz to 10 kHz
< ± (6% of setting + 1%)
< 2.0%
< 4%, typical
Ext 1 or Ext 2
1 V
50 , nominal
400 Hz to 10 MHz
dc to 10 MHz
I input
0.5 V = 100%
50 , nominal
peak
for indicated depth
1
Pulse modulation
On/off ratio
> 3 GHz
Rise/fall times
Minimum width
ALC On
ALC Off
Pulse repetition frequency
ALC On
ALC Off
Level accuracy
External input
Input voltage
RF on
RF off
Input impedance
Internal pulse generator
Square wave rate
Pulse
High-performance pulse modulation
(Option 1E6, ESG-AP and ESG-A series)
On/off ratio
> 2 GHz
Rise/fall times
Delay
External input
Input voltage
Input impedance
Period
Width
Resolution
3 GHz
2 GHz
> 80 dB
> 60 dB
150 ns, typical
2 µs, typical
0.4 µs, typical
10 Hz to 250 kHz, typical
dc to 1.0 MHz, typical
<
<
(relative to CW)
Ext 2
> +0.5 V, nominal
< +0.5 V, nominal
50 , nominal
0.1 Hz to 50 kHz
16 µs to 30 sec
8 µs to 30 sec
4 µs
> 80 dB
> 70 dB
< 10 ns
< 60 ns, typical
Pulse in
+5 V (with RF on, TTL compatible)
±0.5 dB, typical 3 GHz
±0.8 dB, typical 4 GHz
2
3