RFSA3714 Datasheet, PDF (16/20 Pages) RF Micro Devices – 50MHz to 6000MHz, Digital Step Attenuator

RFSA3714
Serial Mode Attenuation Word Truth Table
Attenuation Word
D7
D6
D5
D4
D3
D2
D1
D0
(LSB)
X
L
L
L
L
L
L
L
X
L
L
L
L
L
L
H
X
L
L
L
L
L
H
L
X
L
L
L
L
H
L
L
X
L
L
L
H
L
L
L
X
L
L
H
L
L
L
L
X
L
H
L
L
L
L
L
X
H
L
L
L
L
L
L
X
H
H
H
H
H
H
H
Attenuation State
0dB / Reference Insertion Loss
0.25dB
0.5dB
1dB
2dB
4dB
8dB
16dB
31.75dB
Serial Mode Timing Diagram
PBAR/S X
X
LE
CLK
SI X D0 D1 D2 D3 D4 D5 D6 D7 X
Note: Bit D7 is not used and can be set to logic high or low
RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
DS141203
For sales or technical support, contact RFMD at +1.336.678.5570 or [e-mail].
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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