AK2401 Datasheet, PDF (37/103 Pages) Asahi Kasei Microsystems – Direct Conversion Transceiver

[AK2401]
7
60
6
50
5
40
4
30
3
20
2
1
10
0
-60 -50 -40 -30 -20 -10
0
HD2 [dBc]
(a) LOIN=900MHz, 0dBm
4
3
2
1
0
-1
-2
-3
-4
-10
-5
0
5
10
LOIN Input Power [dBm]
(c) LOIN=900MHz, HD2=-50dBc
4
3
2
1
0
-1
-2
-3
-4
200 400 600 800 1000 1200 1400 1600 1800
LOIN Input Frequency [MHz]
(e) LOIN=0dBm, HD2=-50dBc
0
0
1
2
3
4
5
Phase Error [deg]
(b) LOIN=900MHz, 0dBm
4
3
2
1
0
-1
-2
-3
-4
-10
-5
0
5
10
LOIN Input Power [dBm]
(d) LOIN=900MHz, HD2=-20dBc
4
3
2
1
0
-1
-2
-3
-4
200 400 600 800 1000 1200 1400 1600 1800
LOIN Input Frequency [MHz]
(f) LOIN=0dBm, HD2=-20dBc
Figure 22. Measurement example of the orthogonality
of the I/Q phases and various parameters (Divide by 2)
017003093-E-00
37
2017/3