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DATA SHEET ? SKY12328-350LF 5-BIT DIGITAL ATTENUATOR
Figure 2. SKY12328-350LF Pinout – 16-Pin QFN
(Top View)
Table 1. SKY12328-350LF Signal Descriptions
Pin #
1
2
GND
RF1
Name
Description
Ground
RF input or output port. A DC blocking
Pin #
9
10
GND
N/C
Name
Ground
No connection
Description
capacitor is required. Supply voltage of 2.7
to 5.5 V is applied to pin 2 through a 10 k Ω
resistor (see Figure 10).
3
N/C
No connection
11
RF2
RF input or output port. A DC blocking
capacitor is required.
4
GND
Ground
12
V5
High impedance control voltage input for
0.5 dB weighted bit (LSB)
5
GND
Ground
13
V4
High impedance control voltage input for
1 dB weighted bit
6
GND
Ground
14
V3
High impedance control voltage input for
2 dB weighted bit
7
GND
Ground
15
V2
High impedance control voltage input for
4 dB weighted bit
8
GND
Ground
16
V1
High impedance control voltage input for
8 dB weighted bit (MSB)
Electrical and Mechanical Specifications
The absolute maximum ratings of the SKY12328 - 350LF are
The state of the SKY12328 - 350LF is determined by the logic
provided in Table 4.
provided in Table 2. El ectrical specifications are provided in
Table 3 .
Typical performance characteristics of the SKY12328 - 350LF are
illustrated in Figures 3 through 8 .
Skyworks Solutions, Inc. ? Phone [781] 376 - 3000 ? Fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com
2
March 2, 2011 ? Skyworks Proprietary Information ? Products and Product Information are Subject to Change Without Notice ? 200753D
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