DATA SHEET
AA104-73, AA104-73LF: GaAs IC 1-Bit Digital Attenuator,
32 dB 300 kHz–2.5 GHz
Features
1-bit attenuation of 32 dB 300 kHz–1 GHz, 27 dB 1–2 GHz, 24 dB
2–2.5 dB
●
Combine with AA260-85 or AA101-80 for 63 dB 6-bit solution
●
Tune with one capacitor and/or resistor to desired operating frequency
and attenuation
●
Ideal for both IF and RF applications including cable, GSM, PCS, EDGE,
3G and ISM
●
Available lead (Pb)-free and RoHS-compliant MSL-1 @ 260 °C
per JEDEC J-STD-020
●
Pin Out
Positive Voltage
J
1
V
2
NC/GND
V
1
1
6
C
BL
32
2
C
BP
RF
GND
J
2
C
BL
5
C
BL
= 47 pF for frequencies >500 MHz. See table on previous page for C
BP
value.
See application notes APN2013 and APN2014 for 6 bit attenuator requirements.
3
4
Description
The AA104-73 is a 1-bit, GaAs IC FET digital attenuator in a low-cost
SOT-6 package. This attenuator has up to 32 dB total attenuation. The
attenuator requires two lines of voltage control. The AA104-73 is partic-
ularly suited where high attenuation accuracy, low insertion loss, and
low intermodulation products are required. Typical application is as a
sixth bit value for the AA260-85 and AA101-80. A total attenuation of
63 dB in 1 dB steps can be obtained by combining the two attenuators.
NEW
Skyworks offers lead (Pb)-free, RoHS (Restriction of
Hazardous Substances)-compliant packaging.
Electrical Specifications at -40 °C to +85 °C (0, 3 V), (0, 5 V)
Parameter
(1)
Insertion loss
Frequency
(2)
300 kHz–1.0 GHz
1.0–2.0 GHz
2.0–2.5 GHz
300 kHz–1.0 GHz
1.0–2.0 GHz
2.0–2.5 GHz
2.3–2.5 GHz
300 kHz–0.5 GHz
0.85–0.95 GHz
1.7–2.0 GHz
2.0–2.5 GHz
2.3–2.5 GHz
300 kHz–2.5 GHz
300 kHz–2.5 GHz
Min.
Typ.
0.8
0.9
1.0
32
27
24
23
± (0.4 + 10% of attenuation setting in dB)
± (0.4 + 5% of attenuation setting in dB)
± (0.5 + 6% of attenuation setting in dB)
± (0.6 + 7% of attenuation setting in dB)
± (0.7 + 7% of attenuation setting in dB)
1.2:1
1.5:1
4. Attenuation referenced to insertion loss.
5. Input/output. In band.
Max.
1.0
1.2
1.3
Unit
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Attenuation range
Attenuation accuracy
(3, 4)
VSWR (insertion loss state)
(5)
VSWR (attenuation
state)
(5)
1.5:1
2.0:1
1. All measurements made in a 50
Ω
system, unless otherwise specified.
2. Operates to 300 kHz when controlled with negative voltage, C
BP
not required.
3. Attenuation value set by C
BP
.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
200200 Rev. A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • November 15, 2006
1
SKYWORKS [ SKYWORKS SOLUTIONS INC. ]
