AS218-321 Datasheet, PDF (1/4 Pages) Skyworks Solutions Inc. – PHEMT GaAs IC High Power Transfer Switch DC-6 GHz

DATA SHEET
AS218-321, AS218-321LF: PHEMT GaAs IC High Power
Transfer Switch DC–6 GHz
Applications
● _{WLAN 802.11a, b, g diversity}
Features
● _{Operating frequency DC–6 GHz}
● _{Positive low voltage control (0/+3 V operation)}
● _{Low insertion loss}
● _{PHEMT process}
● _{Available lead (Pb)-free MSL-1 @ 250 °C per JEDEC J-STD-020}
Description
The AS218-321 is a broadband transfer switch designed to
combine T/R and antenna diversity switching functions on a
single IC. The device is designed to handle high power and
maintain high linearity at low control voltages. This low cost
switch is ideal for Wi-Fi systems and is capable of covering
both the 2.4 and 5 GHz bands.
NEW Skyworks offers lead (Pb)-free “environmentally
friendly” packaging that is RoHS compliant
(European Parliament for the Restriction of
Hazardous Substances).
Electrical Specifications at 25 °C (0, +3 V)
Parameter^{(1, 4)}
Insertion loss⁽²⁾
Condition
Ant 1, Ant 2 to TX, RX
Isolation
Ant 1, Ant 2 to TX, RX
Isolation
Return loss⁽³⁾
V₁ = V₂
Ant 1, Ant 2 to TX, RX
1. All measurements made in a 50 Ω system.
2. Insertion loss changes by 0.003 dB/C.
QFN-12
Pin 1
Indicator
0.118 (3.00 mm)
0.008 (0.20 mm)
Seating Plane
0.001
(0.02 mm)
0.118
(3.00 mm)
0.007
0.029 ^{(0.180 mm)}
(0.73 mm)
Exposed pad
0.009 (0.23 mm)
+ 0.003 (0.07 mm)
- 0.002 (0.05 mm)
0.030
(0.75 mm)
± 0.002
(0.05 mm)
0.017
(0.435 mm) Sq.
Pin 1 Indicator
0.057 (1.45 mm) Sq.
+ 0.004 (0.10 mm)
- 0.006 (0.15 mm)
0.0196
(0.50 mm) BSC
0.022 (0.55 mm)
± 0.004 (0.10 mm)
Frequency
Min.
Typ.
Max.
Unit
0.10–6.00 GHz
2.40–2.50 GHz
5.15–5.85 GHz
1.6
1.8
dB
1.2
1.4
dB
1.4
1.6
dB
0.10–6.00 GHz
17
19
dB
2.40–2.50 GHz
26
28
dB
5.15–5.85 GHz
17
19
dB
0.10–6.00 GHz
6
dB
0.10–6.00 GHz
2.40–2.50 GHz
5.15–5.85 GHz
10
dB
15
dB
20
dB
3. Return loss for insertion loss state.
4. TX and RX paths can be used interchangeably.
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • [e-mail] • www.skyworksinc.com
200082 Rev. B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • January 7, 2005
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