SPUR TABLES
THE SPUR NUMBERS below represent the typical numbers one would see for downconversion. The numbers shown are for a -10 dBm input. The spur suppression is decreased for lower RF power levels by (n-1). For example if the 2RF x 2LO spur is typically 40 dBc for a -10 dBm input, then for a -20 dBm input the level is (2-1) x 10 dB lower, or 50 dBc.
Double-Balanced: M1/M3/M4/M8/M9Spurious Suppression (Typical) - dBc
| |
5R |
100 |
100 |
90 |
110 |
95 |
| |
4R |
80 |
95 |
95 |
100 |
90 |
| RF Input @ -10dBm |
3R |
50 |
70 |
55 |
70 |
60 |
| |
2R |
55 |
50 |
50 |
50 |
50 |
| |
1R |
0 |
20 |
10 |
25 |
20 |
| |
|
|
|
|
|
|
| |
|
1L |
2L |
3L |
4L |
5L |
Triple-Balanced: M2's - Sine-Wave LO-DriveSpurious Suppression (Typical) - dBc
| |
5R |
100 |
110 |
130 |
120 |
110 |
| |
4R |
95 |
100 |
110 |
90 |
100 |
| RF Input @ -10 dBm |
3R |
65 |
80 |
80 |
80 |
65 |
| |
2R |
55 |
55 |
60 |
60 |
65 |
| |
1R |
0 |
30 |
15 |
30 |
20 |
| |
|
|
|
|
|
|
| |
|
1L |
2L |
3L |
4L |
5L |
Triple-Balanced: M2's - Square Wave LO-DriveSpurious Suppression (Typical) - dBc
| |
5R |
100 |
110 |
130 |
120 |
110 |
| |
4R |
95 |
100 |
110 |
90 |
100 |
| RF Input @ -10 dBm |
3R |
80 |
80 |
90 |
90 |
80 |
| |
2R |
55 |
67 |
60 |
70 |
75 |
| |
1R |
0 |
20 |
10 |
20 |
18 |
| |
|
|
|
|
|
|
| |
|
1L |
2L |
3L |
4L |
5L |
Triple-Balanced: T3's - Sine-Wave LO-DriveSpurious Suppression (Typical) - dBc
| |
|
|
|
|
|
|
| |
4R |
100 |
100 |
100 |
100 |
100 |
| LO Input @ +25 dBm |
3R |
90 |
100 |
75 |
90 |
90 |
| |
2R |
70 |
55 |
70 |
70 |
75 |
| RF Input @ -10 dBm |
1R |
0 |
20 |
10 |
20 |
15 |
| |
|
|
|
|
|
|
| |
|
1L |
2L |
3L |
4L |
5L |
Triple-Balanced: T3's - Square-Wave LO-DriveSpurious Suppression (Typical) - dBc
| |
|
|
|
|
|
|
| |
4R |
100 |
100 |
100 |
100 |
100 |
| LO Input @ +25 dBm |
3R |
100 |
100 |
100 |
100 |
100 |
| |
2R |
80 |
90 |
90 |
90 |
90 |
| RF Input @ -10 dBm |
1R |
0 |
40 |
15 |
30 |
20 |
| |
|
|
|
|
|
|
| |
|
1L |
2L |
3L |
4L |
5L |