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DATA SHEET ? SKY12325-350LF THREE-BIT DIGITAL ATTENUATOR
Table 1. SKY12325-350LF Signal Descriptions
Pin #
1
2
N/C
J1
Name
Description
No connection
RF input or output port . A n external 47 pF
Pin #
9
10
N/C
N/C
Name
No connection
No connection
Description
(recommended value) DC blocking capacitor
is required.
3
N/C
No connection
11
J2
RF input or output port. An external 47 pF
(recommended value) DC blocking capacitor
is required.
4
5
N/C
GND
No connection
Ground
12
13
N/C
V 1
No connection
High impedance control voltage input for
4 dB weighted bit (MSB)
6
GND
Ground
14
V 2
High impedance control voltage input for
2 dB weighted bit
7
GND
Ground
15
V 3
High impedance control voltage input for
1 dB weighted bit (LSB)
8
N/C
No connection
16
VDD
Supply voltage
Note :
Exposed paddle must be grounded.
Table 2. SKY12325-350LF Absolute Maximum Ratings
RF input power
Supply voltage
Control voltage
Operating temperature
Storage temperature
Parameter
P IN
V S
V CTL
T OP
T STG
Symbol
Minimum
0
–40
–65
Maximum
+30
+6
+6
+85
+150
Units
dBm
V
V
° C
° C
Note:
Exposure to maximum rating conditions for extended periods may reduce device reliability. There is no damage to device with only one parameter set at the limit and all other
parameters set at or below their nominal value. Exceeding any of the limits listed here may result in permanent damage to the device.
CAUTION : Although this device is designed to be as robust as possible, Electrostatic Discharge (ESD) can damage this device. This device
must be protected at all times from ESD. Static charges may easily produce potentials of several kilovolts on the human body
or equipment, which can discharge without detection. Industry-standard ESD precautions should be used at all times.
Electrical and Mechanical Specifications
The absolute maximum ratings of the SKY12325- 350LF are
The state of the SKY12325- 350LF is de termined by the logic
provided in Table 4.
provided in Table 2. E lectrical specifications are provided in
Table 3.
Typical performance characteristics of the SKY12325- 350LF are
illustrated in Figures 3 through 6.
Skyworks Solutions, Inc. ? Phone [781] 376 - 3000 ? Fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com
2
April 22 , 2011 ? Skyworks Proprietary Information ? Products and Product Information are Subject to Change Without Notice ? 200423D
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