RF Micro Devices Inc.

7628 Thorndike Road, Greensboro, NC 27409-9421

DS150225

For sales or technical support, contact RFMD at +1.336.678.5570 or customerservice@rfmd.com.

The information in this publication is believed to be accurate. However, no responsibility is assumed by RF Micro Devices, Inc. ("RFMD") for its use, nor for any infringement of patents or other rights of

third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent rights of RFMD. RFMD reserves the right to change component circuitry, recommended

application circuitry and specifications at any time without prior notice.

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RFSA4033

Pin Names and Descriptions

Pin

Name

Description

1

GND

Connect to PCB ground

2

GND

Connect to PCB ground

3

RFIN

Input RF port; Do not apply DC voltage to this pin. Pin may be grounded externally.

4

GND

Connect to PCB ground

5

SLP2

Input logic bus to control the attenuation slope (MSB)

6

SLP1

Input logic bus to control the attenuation slope

7

SLP0

Input logic bus to control the attenuation slope (LSB)

8

GND

Connect to PCB ground

9

GND

Connect to PCB ground

10

RFOUT

Output RF Port; Do not apply DC voltage to this pin. Pin may be grounded externally.

11

GND

Connect to PCB ground

12

GND

Connect to PCB ground

13

VDD

Supply Voltage

14

ATTN0

Input logic bus to control the 25°C nominal attenuation value (LSB)

15

ATTN1

Input logic bus to control the 25°C nominal attenuation value

16

ATTN2

Input logic bus to control the 25°C nominal attenuation value (MSB)

Nominal Attenuation Truth Table

ATTN2

ATTN1

ATTN0

0

0

0

3

0

0

1

4

0

1

0

5

0

1

1

6

1

0

0

7

1

0

1

8

1

1

0

9

1

1

1

10

Note: Refer to nominal attenuation accuracy table.