LMX2541SQ2060E_NOPB Datasheet, PDF (22/64 Pages) Texas Instruments – LMX2541 Ultra-Low Noise PLLatinum Frequency Synthesizer with Integrated VCO

LMX2541SQ2060E, LMX2541SQ2380E
LMX2541SQ2690E, LMX2541SQ3030E
LMX2541SQ3320E, LMX2541SQ3740E
SNOSB31I – JULY 2009 – REVISED FEBRUARY 2013
Table 7. RFout Output Impedance vs. OUTTERM (Divided Mode)⁽¹⁾
Freq.(MHz)
50
100
200
400
600
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3600
3800
4000
4200
4400
4600
4800
5000
OUTTERM=3
Real Imaginary
44.1
-0.3
44.9
-2.2
43.2
-7.2
33.2
-8.1
28.0
-3.8
25.1
1.1
23.7
5.8
23.5
9.3
22.6
12.3
21.5
15.3
20.2
18.8
19.1
22.9
19.4
26.4
17.9
30.4
15.7
33.3
14.5
39.0
12.7
46.1
13.5
53.5
15.5
61.3
20.9
67.5
22.7
73.3
25.4
71.7
19.0
86.1
26.6
102.0
34.9
116.4
52.1
134.8
78.5
147.4
OUTTERM=6
Real Imaginary
31.8
1.0
32.8
0.7
33.2
-1.2
28.5
-1.5
25.7
1.8
24.0
5.6
23.3
9.6
23.7
12.4
22.9
14.8
21.8
17.4
20.5
20.7
19.4
24.5
19.7
28.0
18.2
32.0
15.9
34.9
14.5
40.7
12.6
47.9
13.3
55.5
15.4
63.5
21.1
70.0
23.1
76.0
26.2
74.5
19.8
89.5
28.3
106.3
37.8
121.5
57.4
140.3
87.4
152.0
OUTTERM=9
Real Imaginary
21.2
1.7
22.1
2.5
23.3
2.8
21.9
4.5
21.4
8.0
21.7
11.5
22.4
14.7
23.8
16.7
23.5
18.1
22.6
20.0
21.3
22.8
20.1
26.3
20.5
29.6
18.9
33.4
16.5
36.1
15.1
42.0
12.9
49.2
13.8
56.9
15.9
65.0
21.7
71.5
23.9
77.6
27.1
76.1
20.7
91.4
29.9
108.7
40.1
124.1
61.1
143.1
93.3
154.0
OUTTERM=12
Real Imaginary
14.0
1.9
14.8
3.2
16.1
4.7
15.7
7.7
15.9
12.1
16.9
16.5
18.7
20.5
21.4
23.1
22.5
24.3
22.5
25.8
21.6
28.2
20.9
31.4
21.7
34.5
20.4
38.1
18.2
40.4
17.0
46.2
15.2
53.4
16.5
61.1
19.4
69.2
26.1
75.4
28.9
81.1
32.3
78.8
26.6
94.7
37.8
111.4
49.8
125.9
73.7
141.9
107.2
148.0
(1) This was done in divided mode (VCO_DIV=50) with VCOGAIN=12.
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OUTTERM=15
Real Imaginary
9.3
2.0
10.0
3.5
11.3
5.6
11.2
9.1
11.4
13.9
12.5
19.0
14.6
23.8
17.7
27.2
19.5
28.9
20.2
30.5
19.7
33.0
19.3
36.4
20.6
39.8
19.8
43.6
17.9
45.7
17.2
51.9
15.8
59.5
18.0
67.8
22.0
76.5
30.5
82.8
34.7
88.2
39.0
84.7
34.6
101.8
49.4
118.0
65.3
130.6
93.8
141.8
129.0
138.6
22
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