SKY12361-350LF Datasheet, PDF (5/9 Pages) Skyworks Solutions Inc. – 0.1 to 3.7 GHz Four-Bit Digital Attenuator

DATA SHEET • SKY12361-350LF: FOUR-BIT DIGITAL ATTENUATOR
Table 4. SKY12361-350LF Truth Table
RF1/RF2 (Pins 2 and 11)
Attenuation
V4
(Pin 16)
V3
(Pin15)
V2
(Pin 14)
Insertion loss
1
1
1
1 dB
0
1
1
2 dB
1
0
1
4 dB
1
1
0
8 dB
1
1
1
15 dB
0
0
0
Notes: “1” = high control voltage: +3.3 to VDD.
“0” = low control voltage: 0 to +0.8 V.
This table shows the logic required for the major bits and full attenuation. Bit states need to be used in combination to set the sum of the bits selected.
V1
(Pin 13)
1
1
1
1
0
0
Evaluation Board Description
The SKY12361-350LF Evaluation Board is used to test the
performance of the SKY12361-350LF digital attenuator. An
assembly drawing for the Evaluation Board is shown in Figure 9
and an Evaluation Board schematic diagram is shown in
Figure 10.
Package Dimensions
The PCB layout footprint for the SKY12361-350LF is shown in
Figure 11. Typical case markings are noted in Figure 12. Package
dimensions for the 16-pin QFN are shown in Figure 13, and tape
and reel dimensions are provided in Figure 14.
Package and Handling Information
Instructions on the shipping container label regarding exposure to
moisture after the container seal is broken must be followed.
Otherwise, problems related to moisture absorption may occur
when the part is subjected to high temperature during solder
assembly.
The SKY12361-350LF is rated to Moisture Sensitivity Level 1
(MSL1) at 260 C. It can be used for lead or lead-free soldering.
For additional information, refer to the Skyworks Application Note,
Solder Reflow Information, document number 200164.
Care must be taken when attaching this product, whether it is
done manually or in a production solder reflow environment.
Production quantities of this product are shipped in a standard
tape and reel format.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
202874A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • May 30, 2014
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