AA103-72_07 Datasheet, PDF (1/4 Pages) Skyworks Solutions Inc. – GaAs IC 1-Bit Digital Attenuator 10 dB LSB LF-2.5 GHz

DATA SHEET
AA103-72, AA103-72LF: GaAs IC 1-Bit Digital Attenuator
10 dB LSB LF–2.5 GHz
Features
G _{Attenuation cutback of 10 dB}
G _{Single positive 3 V control}
G _{Low loss}
G _{Low-cost SOT-5 plastic package}
G _{Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 °C}
per JEDEC J-STD-020
Description
The AA103-72 is a 1-bit GaAs IC FET digital attenuator in a low-
cost package. This attenuator has an LSB of 10 dB. The AA103-72
is particularly suited where high attenuation accuracy, low insertion
loss, and low intermodulation products are required. Typical appli-
cations include cellular radio, wireless data, and wireless local loop
gain level control circuits.
NEW Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances)-compliant packaging.
Pin Out
J1
CBL
RF GND
CBP
V2
10
J2 _CBL
V1
10 kΩ
VS
DC blocking capacitors (C_BL), bypass capacitor (C_BP), and biasing resistor must be supplied
externally for positive voltage operation.
C_BL, C_BP = 33 pF for operation @ 900 MHz.
Electrical Specifications at 25 °C (0, 3 V)
Insertion loss⁽²⁾
Parameter⁽¹⁾
Attenuation range
Attenuation accuracy⁽³⁾
VSWR (I/O)
1. All measurements made in a 50 Ω system, unless otherwise specified.
2. Insertion loss changes by 0.003 dB/°C.
3. Maximum attenuation includes insertion loss.
Frequency
LF–0.5 GHz
LF–1.0 GHz
LF–2.5 GHz
LF–1.0 GHz
LF–2.5 GHz
LF–2.5 GHz
Min.
Typ.
Max.
Unit
0.3
0.5
dB
0.3
0.6
dB
0.4
0.7
dB
10
dB
± (0.25 + 3% of
Attenuation setting)
dB
± (0.4 + 5% of
Attenuation setting)
dB
1.2:1 1.4:1
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
200199 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • April 30, 2007
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