DATA SHEET
SKY12146-321, SKY12146-321LF: GaAs IC 25 dB
Voltage Variable Attenuator 2.7–4 GHz
Features
Power control for 3.5 GHz fixed wireless applications
G
Minimum 25 dB attenuation
G
Positive 0.2–1.2 V control voltage
G
QFN-12 3 x 3 mm package
G
Low cost
G
No external components needed
G
Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 °C
per JEDEC J-STD-020
G
Pin Out
N/C
N/C
11
12
10
J
1
N/C
N/C
N/C
1
2
3
9
8
7
J
2
N/C
N/C
5
N/C
4
Description
The SKY12146-321 is a GaAs IC PHEMT voltage variable
attenuator that has been designed for WLAN applications.
Operating from 2.7–4 GHz, the SKY12146-321 is ideal for
low-cost applications such as 3.5 GHz fixed wireless LAN
power control applications.
Ground is connected to paddle on bottom.
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances)-compliant packaging.
Electrical Specifications at 25 °C
Z
O
= 50
Ω,
unless otherwise noted
Parameter
Insertion loss (V
C
= 1.2 V)
Maximum attenuation (V
C
= 0.2 V)
VSWR — all ports
Frequency
2.7–4 GHz
2.7–4 GHz
2.7–4 GHz
22
Min.
Typ.
1.5
25
1.5
1.8
Max.
1.8
Unit
dB
dB
Operating Characteristics at 25 °C (0, 1.2 V)
Z
O
= 50
Ω,
unless otherwise noted
Parameter
Switching characteristics
Rise, fall
On, off
Video feedthru
Maximum input power
for < 1 dB attenuation variation
Input 3rd order intercept point (IIP3)
Control voltage
10/90% or 90/10% RF
50% CTL to 90/10% RF
T
RISE
= 1 ns, BW = 500 MHz
2.7–4 GHz
2.7–4 GHz
0.2
50
150
25
13
20
1.2
ns
ns
mV
dBm
dBm
V
Condition
Frequency
Min.
Typ.
Max.
Unit
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200270 Rev. C • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 31, 2007
V
C
N/C
6
1
SKYWORKS [ SKYWORKS SOLUTIONS INC. ]
