RF Micro Devices Inc.

7628 Thorndike Road, Greensboro, NC 27409-9421

DS150626

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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RFSA2534

Serial Attenuation Word Truth Table

Attenuation Word

Attenuation State

D0.5

D1

D2

D4

D8

H

H

H

H

H

0dB / Reference Insertion Loss

L

H

H

H

H

0.5dB

H

L

H

H

H

1dB

H

H

L

H

H

2dB

H

H

H

L

H

4dB

H

H

H

H

L

8dB

L

L

L

L

L

15.5dB max attenuation

Timing Diagram

LSB

MSB

D1

D2

D4

D8

D0.5

CLK

DATA

LE