Datasheet

LMX2541SQ2060E, LMX2541SQ2380E
LMX2541SQ2690E, LMX2541SQ3030E
LMX2541SQ3320E, LMX2541SQ3740E
www.ti.com SNOSB31I –JULY 2009–REVISED FEBRUARY 2013
Table 6. RFout Output Impedance vs. DIVGAIN (Divided Mode)
(1)
DIVGAIN=3 DIVGAIN=6 DIVGAIN=9 DIVGAIN=12 DIVGAIN=15
Freq.
(MHz)
Real Imaginary Real Imaginary Real Imaginary Real Imaginary Real Imaginary
50 3.2 2.2 3.6 2.1 5.8 2.0 13.9 1.9 22.3 1.6
100 4.5 4.1 4.6 4.0 6.6 3.8 14.7 3.2 23.2 2.3
200 5.7 5.3 6.4 5.7 7.0 5.9 15.0 4.7 23.0 2.7
400 5.0 9.2 5.6 9.4 7.7 9.5 15.6 7.7 22.8 4.4
600 5.2 14.6 5.7 14.6 7.8 14.6 15.9 12.1 22.2 7.9
800 6.0 20.2 6.5 20.2 8.7 20.2 16.9 16.5 22.3 11.4
1000 7.9 25.7 8.4 25.7 10.7 25.5 18.7 20.5 22.9 14.6
1200 11.0 29.9 11.6 30.0 13.9 29.5 21.4 23.1 24.3 16.8
1400 13.2 32.3 13.9 32.3 16.1 31.7 22.5 24.3 23.9 18.2
1600 14.2 34.4 15.0 34.3 17.1 33.5 22.5 25.8 23.1 20.1
1800 13.9 37.2 14.6 37.0 16.7 36.2 21.6 28.2 21.7 22.9
2000 13.5 41.1 14.3 40.9 16.4 39.9 20.9 31.4 20.6 26.4
2200 14.8 45.1 15.6 44.7 17.8 43.6 21.7 34.5 20.9 29.7
2400 14.1 49.4 14.9 49.0 17.1 47.7 20.4 38.1 19.3 33.5
2600 12.4 52.1 13.2 51.6 15.5 50.1 18.2 40.4 16.8 36.2
2800 11.8 59.3 12.5 58.7 15.0 56.8 17.0 46.2 15.3 42.0
3000 10.7 68.3 11.5 67.6 14.0 65.2 15.2 53.4 13.0 49.2
3200 13.1 78.6 14.0 77.6 16.7 74.5 16.5 61.1 13.8 56.9
3400 18.1 89.6 18.9 88.4 21.6 84.4 19.4 69.2 16.0 65.1
3600 29.2 98.6 29.8 96.9 31.9 91.6 26.1 75.4 21.7 71.6
3800 36.0 105.8 36.5 103.9 37.8 97.5 28.9 81.1 24.0 77.8
4000 43.6 101.4 43.7 99.5 43.7 92.9 32.3 78.8 27.1 76.3
4200 40.6 122.9 40.8 120.3 40.6 111.8 26.6 94.7 20.7 91.8
4400 63.6 143.0 62.9 139.6 59.9 128.6 37.8 111.4 30.0 109.2
4600 90.9 155.3 88.8 151.4 81.1 139.6 49.9 125.8 40.3 124.9
4800 135.8 159.1 131.2 155.7 116.3 145.5 73.7 142.1 61.7 144.0
5000 179.4 135.1 173.2 133.9 153.3 131.4 107.1 147.7 94.5 155.2
(1) This was done with RFout buffer powered up and with OUTTERM=12. VCO_DIV was set to 50.
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LMX2541SQ3320E LMX2541SQ3740E