Atec Agilent-E8267D - Manual (Page 18)

18
I/Q adjustments
I & Q offsets
External inputs (600 Ω): ± 5 Volts
External inputs (50 Ω): ± 50 %
Internal baseband generator: ± 50 %
I/Q attenuation 0 to 40 dB
I/Q gain balance ± 4 dB
I/Q quadrature skew ± 10 ° range (typ)
Low pass filter Selectable 40 MHz or through path
I/Q baseband outputs
Differential
I, I, Q, Q
Single ended I, Q
Frequency range DC to 40 MHz
Output voltage into 50 Ω 1.5 V
peak-to-peak
(typ)
DC offset adjustments ± 3 V
DC offset resolution 1 mV
Low pass filter Selectable 40 MHz or through path
RF output frequency range 250 kHz to 3.2 GHz 3.2 to 44 GHz
Input
Input (baseband) frequency range
DC to 130 MHz (nom) DC to 1.0 GHz 2
Input impedance 50 Ω (nom) 50 Ω (nom)
Recommended input level –1 dBm 0 dBm (nom)
Maximum input voltage ±1 V DC ±1 V DC
I/Q offset adjustments ±50% ±50%
I/Q quadrature skew ±10 degrees ±10 degrees (nom)
I/Q frequency response (measured)
Wideband external
differential I/Q inputs
1
(Option 016)
I/Q frequency response
3
for frequencies < 3.2 GHz
(measured)
1087.5 GHz 900 MHz
8
6
4
2
0
–2
–4
–6
–8
dB
Carrier at 900 MHz (measured)
GHz from Carrier
–0.2 –0.15 –0.1 –0.05 0 0.05 0.1 0.15 0.2
RF filter In
RF filter Out
8
6
4
2
0
–2
–4
–6
–8
dB
Carrier at 1087.5 MHz (measured)
GHz from Carrier
–0.2 –0.15 –0.1 –0.05 0 0.05 0.1 0.15 0.2
2.4 GHz 1.8 GHz
8
6
4
2
0
–2
–4
–6
–8
dB
Carrier at 1.8 GHz (measured)
GHz from Carrier
–0.2 –0.15 –0.1 –0.05 0 0.05 0.1 0.15 0.2
8
6
4
2
0
–2
–4
–6
–8
dB
Carrier at 2.4 GHz (measured)
GHz from Carrier
–0.2 –0.15 –0.1 –0.05 0 0.05 0.1 0.15 0.2
1. With Option 007, vector IQ modulation is not useable in ramp sweep mode.
2. Modulation frequency response within ±1 GHz of the carrier frequency may be limited by the RF chain cutoff frequencies.
3. Sine wave response, measured with input level = 100 mVrms on one channel, and ALC off. For carrier frequencies below
1.5 GHz, modulation frequency response within ±150 MHz of carrier may be limited by RF chain filtering.