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SKY12322-86LF Datasheet(PDF) 5 Page - Skyworks Solutions Inc.

Part No. SKY12322-86LF
Description  GaAs Digital Attenuator 500 MHz-4 GHz 5 Bits, 0.5 dB LSB
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Maker  SKYWORKS [Skyworks Solutions Inc.]
Homepage  http://www.skyworksinc.com
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SKY12322-86LF Datasheet(HTML) 5 Page - Skyworks Solutions Inc.

   
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DATA SHEET • SKY12322-86LF
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200273 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • July 31, 2006
5
1
2
3
4
5
10
9
8
7
6
V5
V4
V3
V2
V1
VS
J2
J1
SKY12322-86
C2
C1
R1
Evaluation Circuit PCB
Pin 10
Pin 1
Pin 1
Indicator
0.034
(0.86 mm)
± 0.004
(0.10 mm)
0.118 (3.00 mm)
± 0.006 (0.15 mm)
0.193
(4.90 mm)
± 0.006
(0.15 mm)
0˚–6˚
8˚–16˚
0.118 (3.00 mm)
± 0.006 (0.15 mm)
0.022 (0.55 mm)
± 0.006 (0.15 mm)
0.006 (0.15 mm) Max.
0.002 (0.05 mm) Min.
0.0197
(0.500 mm)
BSC
0.009 (0.23 mm)
Ref.
0.043
(1.09 mm)
Max.
MSOP-10
Evaluation Board
The evaluation board for SKY12322-86 allows the part to be fully
exercised. The RF signal may be applied to J1 or to J2 without
change in performance. The supply voltage (VS) is applied to pin 6
via R1. DC blocking capacitors (C1 and C2) are required at the RF
ports. The values of R1,C1 and C2 are shown in Evaluation Board
Components Table.
The attenuation produced by the SKY12322-86 is determined by
the voltages applied to the high impedance control voltage ports V1
through V5. Each control voltage port determines whether its asso-
ciated attenuation bit, as listed in the Truth Table, is switched into
or out of the RF signal path. Each of these control voltage ports
must be held at 0 V (VLOW) or at VS ± 0.2 V (VHIGH). The supply
voltage must be within 0.2 V of VHIGH or damage may result. Any
combination of VHIGH and VLOW may be applied to ports V1 through
V5. For example, if the desired attenuation value is 5.5 dB, VLOW is
applied to the 0.5 dB, 1 dB and 4 dB voltage control ports, which
are V1,V2 and V4, respectively. VHIGH is applied to the remaining
voltage control ports to ensure that their attenuation bits are not
switched in to the RF signal path.
Component
Description
Default
C1,C2
DC blocking capacitor
47 pF, size 0402
R1
RF block
10k
Ω, size 0402
U1
GaAs digital attenuator
J1,J2
SMA connectors
Evaluation Board Components
Recommended Solder Reflow Profiles
Refer to the “Recommended Solder Reflow Profile”
Application Note.
Tape and Reel Information
Refer to the “Discrete Devices and IC Switch/Attenuators
Tape and Reel Package Orientation” Application Note.


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