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

September 11, 2006 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • 200203 Rev. B

DATA SHEET • AA107-310, AA107-310LF

4

Pin

Symbol

Function

1

Serial data out

Serial data output

2–4

GND

Ground

RF input/output

6–19

GND

Ground

20

RF input/output

21–23

GND

Ground

24

RESET

Reset

25

LE

Latch enable

26

Serial data in

Serial data input

27

Clock In

Serial clock input

28

Low output voltage level

29

GND

Ground

30

Charge pump capacitor

31

Charge pump capacitor

32

Supply voltage

Dimensions in inches (mm).

0.122

(3.10 mm)

Sq.

0.020 (0.50 mm)

0.020

(0.50 mm)

0.020 (0.50 mm)

0.020

(0.50 mm)

0.013 (0.33 mm)

Surface Mount Land Pattern

5 x 5 mm QFN 32-Lead

Parameter

Symbol

Min.

Typ.

Max.

Unit

LE setup time

7.5

15

ns

SDA setup time

7.5

15

ns

SDA hold time

510

ns

LE hold time

510

ns

Clock frequency

16

100

MHz

Clock period

Timing Diagram

SDA

SCK

LE

Serial data (SDA) is shifted into the register on the rising edge of

the clock (SCK), least significant bit (LSB) first. The attenuator will

change states on the rising edge of the latch-enable (LE) signal,

according to the most recent 5 bits of shifted data accepted since

the previous falling edge of the LE signal.

Power-up sequence:

0. Connect ground

2. Set all inputs (SCK, SDA, LE)

Power-down sequence should be the reverse of above.