14

Integrated

Circuit

Systems, Inc.

ICS9214

0809D—04/07/06

Sample points are for this equation are shown in Table 6. Phase Noise Data Points

Phase Noise

Table 6 : Phase Noise Data Points

The 9214 meets the single side band phase noise spectral purity for offset frequencies between 1 MHz and 100 MHz as

described by the equation:

10log[1+(50 x 106/f)2.4] -138 dBc/Hz

This equation is shown in Figure 9. Phase Noise Plot

Figure 9 : Phase Noise Plot

1

5

10

15

20

40

80

100

-97

-114

-121

-125.2

-

-133.7

-136.8

-137.3

Offset

Frequency

(MHz)

SSB Spectral

Purity

(dbc/Hz)

128

-1 50

-1 40

-1 30

-1 20

-1 10

-1 00

67

8

9

10

10

1 0

10

Offs e t Fre q u e ncy f , H z

10 lo g[1 + ( 5 0 x 1 0

( U p p er L im it )