RFSA3413 Datasheet, PDF (13/14 Pages) RF Micro Devices – 5MHz to 6000MHz, Digital Step Attenuator

RFSA3413
Pin Names and Descriptions
Pin
Name
Description
1
VDD
Supply Voltage
2
RFIN
RF Input Pin; Incident RF power must enter this pin for rated thermal performance and reliability. Do not apply
DC power to this pin. Pin may be DC grounded externally and is grounded thru resistors internal to the part.
3
N/C
Open in package. Connect to PCB ground or leave floating.
4
N/C
Open in package. Connect to PCB ground or leave floating.
5
N/C
Open in package. Connect to PCB ground or leave floating.
6
N/C
Open in package. Connect to PCB ground or leave floating.
7
N/C
Open in package. Connect to PCB ground or leave floating.
8
N/C
Open in package. Connect to PCB ground or leave floating.
9
N/C
Open in package. Connect to PCB ground or leave floating.
10
N/C
Open in package. Connect to PCB ground or leave floating.
11
RFOUT
RF Output Pin; Pin may be DC grounded externally and is grounded thru resistors internal to the part.
12
N/C
Open in package. Connect to PCB ground or leave floating.
13
C8
8dB Bit Parallel Logic Input; 3V CMOS compatible logic.
14
C4
4dB Bit Parallel Logic Input. 3V CMOS compatible logic.
15
C2
2dB Bit Parallel Logic Input. 3V CMOS compatible logic.
16
C1
1dB Bit Parallel Logic Input. 3V CMOS compatible logic.
Paddle
EPAD
GND the paddle with as many vias as possible. Quantity 9 GND vias recommended.
Parallel Interface Attenuation Truth Table
D5
(C8)
H
H
H
H
L
L
Attenuation Word
D4
D3
(C4)
(C2)
H
H
H
H
H
L
L
H
H
H
L
L
D2
(C1)
H
L
H
H
H
L
Attenuation State
0dB / Reference Insertion Loss
1dB
2dB
4dB
8dB
15dB
RF Micro Devices Inc. 7628 Thorndike Road, Greensboro, NC 27409-9421
DS150129
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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