HMC521ALC4 Data Sheet
Rev. 0 | Page 20 of 24
SPURIOUS AND HARMONICS PERFORMANCE
Mixer spurious products are measured in dBc from the IF output
power level. N/A means not applicable.
LO Harmonics
LO = 15 dBm, all values in dBc are below input LO level and are
measured at the RF port.
Table 5. LO Harmonics at RF
N × LO Spur at RF Port
LO Frequency (GHz) 1 2 3 4
6.5 56 39 54 60
7.5 50 31 49 67
8.5 44 36 50 68
9.5 41 42 49 64
10.5 40 59 60 51
11.5 40 53 68 53
12.5 40 58 56 60
14.5 48 57 56 N/A
15.5 53 61 54 N/A
LO = 15 dBm, all values in dBc are below input LO level and are
measured at the IF ports.
Table 6. LO Harmonics at IF1
N × LO Spur at IF1 Port
LO Frequency (GHz) 1 2 3 4
6.5 24 59 60 81
7.5 20 55 72 74
8.5 19 63 54 73
10.5 23 68 53 91
11.5 25 68 53 76
12.5 29 55 64 82
13.5 29 66 74 N/A
15.5 28 66 82 N/A
Table 7. LO Harmonics at IF2
N × LO Spur at IF2 Port
LO Frequency (GHz) 1 2 3 4
6.5 26 64 57 80
7.5 23 55 77 86
8.5 20 69 53 89
9.5 22 61 54 87
10.5 25 68 64 76
11.5 27 70 59 72
12.5 32 55 59 85
13.5 33 69 64 N/A
14.5 32 72 78 N/A
15.5 26 68 66 N/A
M × N Spurious Outputs
Downconverter, Upper Sideband
Spur values are (M × RF) − (N × LO).
RF = 10.6 GHz at −10 dBm, LO = 10.5 GHz at 15 dBm.
N × LO
0 1 2 3 4 5
M × RF
N/A −8 +32 +45 N/A N/A
1 +32 0 +38 +53 +70 N/A
2
+77 +69 +60 +50 +76 +73
3
+73 +77 +79 +57 +80 +77
4 N/A +65 +76 +77 +85 +79
5
N/A N/A +55 +74 +80 +87
Upconverter, Upper Sideband
Spur values are (M × IF) + (N × LO).
IF
IN
= 100 MHz at −10 dBm, LO = 10.5 GHz at 15 dBm.
N × LO
0 1 2 3
M × IF
+5
88 70 76 N/A
+4
90 72 74 N/A
+3
88 44 N/A N/A
+2
88 61 N/A N/A
+1
79 N/A N/A N/A
0
N/A 9 40 36
−2
90 61 57 67
−3
86 44 75 75
−4
87 71 78 75
−5
89 70 75 76
