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DATA SHEET ? SKY12324-73LF 1-BIT DIGITAL ATTENUATOR
Table 3. SKY12324-73LF Electrical Specifications (Note 1)
(V CTL = 0/3 V, V S = 3 V, T OP = +25 ° C, Characteristic Impedance [Z O ] = 50 Ω , Unless Otherwise Noted)
Insertion loss
Parameter
IL
Symbol
Test Condition (Note 2)
0.5 to 1.0 GHz
Min
Typical
0.9
Max
1.0
Units
dB
Attenuation range
1.0 to 2.0 GHz
2.0 to 2.5 GHz
2.5 to 3.0 GHz
3.0 to 4.0 GHz
1.0
1.2
1.3
2.0
1 2
1.2
1.3
1.4
2.1
dB
dB
dB
dB
dB
Attenuation accuracy (Note 3)
0.5 to 1.0 GHz
1.0 to 3.0 GHz
3.0 to 4.0 GH z
± (0. 2 + 3% of attenuation setting)
± (0.3 + 5% of attenuation setting)
± (0.4 + 5% of attenuation setting)
dB
dB
dB
Return loss (insertion loss state)
Return loss (attenuation state)
RL
RL
0.5 to 3.0 GHz
3.0 to 4.0 GHz
0.5 to 3.0 GHz
3.0 to 4.0 GHz
15
12
1 2
12
20
15
18
15
dB
dB
dB
dB
Switching characteristics:
Rise/fall
On/off
Video feedthrough
10/90% or 90/10% RF
50% V CTL to 90/10% RF
T RISE = 1 ns,
bandwidth = 500 MHz
40
100
50
ns
ns
mV
1 dB Input Compression Point
3 rd Order Input Intercept Point
IP1dB
IIP3
900 M Hz, V S = 3 V
For two - tone input ,
+ 30
dBm
P IN = +15 dBm/tone:
1.0 GHz
3.0 GHz
+46
+44
dBm
dBm
Supply voltage
V S
3
5
V
Control voltage
Control current
V CTL
I CTL
V CTL = V LOW
V CTL = V HIGH
V CTL = V LOW
V CTL = V HIGH = 3 V
V CTL = V HIGH = 5 V
0
V S – 0.2
10
50
100
0.2
V S + 0.2
20
100
200
V
V
μ A
μ A
μ A
Note 1: Performance is guaranteed only under the conditions listed in this Table.
Table 4. SKY12324-73LF Truth Table
Attenuation, J1 to J2
Insertion loss
4 dB
8 dB
12 dB
Note :
V HIGH = +3 V to +5 V ; V LOW = V S ± 0.2 V
V1
(Pin 4, 4 dB)
V HIGH
V HIGH
V LOW
V LOW
V2
(Pin 6, 8 dB)
V HIGH
V LOW
V HIGH
V LOW
All other conditions not recommended.
Skyworks Solutions, Inc. ? Phone [781] 376 - 3000 ? Fax [781] 376 - 3100 ? sales@skyworksinc.com ? www.skyworksinc.com
200219E ? Skyworks Proprietary Information ? Products and Product Information are Subject to Change Without Notice ? February 22, 2011
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