DATA SHEET • SKY72301-22 FREQUENCY SYNTHESIZER

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

200706B • Skyworks Proprietary and Confidential information • Products and Product Information are Subject to Change Without Notice • May 21, 2007

11

A3

A2 A1

A0

11

10

9

8

7

6

5

4

3

2

1

0

00

11

X

X

LSB

Auxiliary Synthesizer Divider Index

C1420

Figure 9. Auxiliary Divider Register (Write Only)

A3

A2 A1

A0

11

10

9

8

7

6

5

4

3

2

1

0

01

00

X

LSB

Auxiliary Synthesizer Dividend

C1421

Figure 10. Auxiliary Dividend Register (Write Only)

Table 2. Programming the Main Reference Frequency Divider

Decimal

Bit 4 (MSB)

Bit 3

Bit 2

Bit 1

Bit 0 (LSB)

Reference Divider

Ratio

0

0

0

0

0

0

1

1

0

0

0

0

1

2

2

0

0

0

1

0

3

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

31

1

1

1

1

1

32

Table 3. Programming the Auxiliary Reference Frequency Divider

Decimal

Bit 9 (MSB)

Bit 8

Bit 7

Bit 6

Bit 5 (LSB)

Reference Divider

Ratio

0

0

0

0

0

0

1

1

0

0

0

0

1

2

2

0

0

0

1

0

3

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

—

31

1

1

1

1

1

32