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

200361A • Skyworks Proprietary and Confidential Information • Products and Product Information are Subject to Change Without Notice • June 20, 2007

1

PRELIMINARY DATA SHEET

SKY73100: 865-960 MHz High Performance VCO/Synthesizer

With Integrated Switch

Applications

• 2G, 2.5G, and 3G base station transceivers:

− GSM, EDGE, CDMA, WCDMA

• General purpose RF systems

Features

• Wideband frequency operation: 865 to 960 MHz

• Process-tolerant compensation for VCO

• 24-bit Σ∆ fractional-N synthesizer

• Ultra-fine frequency resolution of 0.001 ppm

• Flexible reference frequency selection

• Three-wire serial interface up to 20 MHz clock frequency

• Integrated PLL supply regulation for spur isolation

• MCM (38-pin, 9 x 12 mm) Pb-free free (MSL3, 260 °C per

JEDEC J-STD-020) SMT package

Skyworks offers lead (Pb)-free, RoHS (Restriction of

Hazardous Substances) compliant packaging.

Description

Skyworks SKY73100 Voltage-Controlled Oscillator

(VCO)/Synthesizer is a fully integrated, high performance signal

source for high dynamic range transceivers. The device provides

ultra-fine frequency resolution, fast switching speed, and low

phase noise performance for 2G, 2.5G, and 3G base station

transceivers.

The SKY73100 VCO/Synthesizer is a key building block for high-

performance radio system designs that require low power and a

fine step size. Reference clock generators with an output

frequency up to 52 MHz can be used with the SKY73100. The

input clock frequency is divided down by programmable dividers

(1 to 8) for the synthesizer. The phase detector can operate at a

maximum speed of 26 MHz, which allows better phase noise due

to the lower division value.

The SKY73100 VCO/Synthesizer is provided in a compact, 38-pin

Multi-Chip Module (MCM). The device package and pinout are

shown in Figure 1. A functional block diagram is shown in

Figure 2. Signal pin assignments and functional pin descriptions

are provided in Table 1.

S958

1

2

3

4

5

6

7

11

12

13

14

15

16

17

18

19

38

37

36

35

34

33

32

31

30

GND

GND

GND

SW_EN

GND

8

GND

9

GND

10

RF_OUT

GND

GND

29

28

27

26

25

24

23

GND

GND

GND

GND

FREF

22

LD

21

N/C

20

GND

GND

N/C

Figure 1. SKY73100 Pinout– 38-Pin MCM Package

(Top View)