18 | Keysight | M9381A PXIe Vector Signal Generator – Data Sheet
Technical Specifications and Characteristics
Format specific modulation data
3GPP W-CDMA performance data 22
Modulation type
QPSK
EVM (2 GHz, 1 DPCH, ≤ 5 dBm)
Channel distortion 23
0.57% rms, typical
ACLR
Power level
Configuration
0 dBm
Spec (dBc)
−70
5 dBm
Spec (dBc)
−71
Offset
Frequency
Typical (dBc)
−72
Typical (dBc)
−72
Adjacent 5 MHz
Alternate 10 MHz
Adjacent 5 MHz
Alternate 10 MHz
Adjacent 5 MHz
Alternate 10 MHz
Adjacent 5 MHz
Alternate 10 MHz
1 DPCH
1 carrier
900 MHz
−71
−73
−72
−74
1800 to
2200 MHz
−70
−72
−70
−71
−71
−73
−72
−73
64 DPCH
1 carrier
900 MHz
−69
−71
−69
−72
−71
−72
−71
−73
1800 to
2200 MHz
−68
−70
−68
−70
−70
−72
−71
−73
Single Carrier WCDMA Adjacent Channel ACLR at 2 GHz
-60
-62
-64
-66
-68
-70
-72
-74
-76
64 DPCH
1 DPCH
-10
-5
0
5
10
Power Level (dBm)
Figure 17. Single carrier W-CDMA adjacent channel ACLR versus power level at 2 GHz.
Four Carrier WCDMA Adjacent Channel ACLR at 2 GHz
-54
-56
64 DPCH
-58
-60
-62
-64
-66
-68
-70
-10
-5
0
5
10
Power Level (dBm)
Figure 18. Four carrier W-CDMA adjacent channel ACLR versus power level at 2 GHz.
22. W-CDMA characteristics apply at 900 MHz and between 1.8 to 2.2 GHz, 3.84 Mcps rate.
23. Specifications apply within the controlled temperature range.
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