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Preliminary
PHEMT GaAs IC High Linearity 3 V T/R SPDT Switch 0.1–2.5 GHz
AS217-000 Applications
■ T/R Switch for Handset Applications
Outline Drawing
0.003 (0.078 mm) 0.008 (0.215 mm) 0.020 (0.507 mm) 0.026 (0.653 mm) V1 ANT 0.018 (0.464 mm) 0.015 (0.392 mm) TX 0.026 (0.653 mm) 0.029 (0.730 mm)
Features
■ +2.7 to +5 V Linear Operation ■ Harmonics H2, H3 > 70 dBc @ PIN = 34.5 dBm ■ Low TX Insertion Loss (0.25 dB @ 0.9 GHz) ■ High RX Isolation (35 dB @ 0.9 GHz)
0.0030 (0.077 mm) 0.000 0.000 0.020 (0.505 mm) 0.017 (0.428 mm) 0.016 (0.405 mm)
V2 GND
RX 0.009 (0.235 mm)
Description
The AS217-000 is a PHEMT GaAs FET IC high linearity SPDT switch. This switch has been designed for use where extremely high linearity, low control voltage, high RX isolation and low TX insertion loss. It can be controlled with positive, negative or a combination of both voltages. Some standard implementations include antenna changeover, T/R and diversity switching over 3 W. The AS217-000 switch can be used in many analog and digital wireless communication systems including cellular, GSM and DECT applications.
Dimension in inches (mm). Thickness: 0.008 (0.200 mm) ± 0.001 (0.025 mm). Tolerance: ± 0.001 (0.025 mm).
Electrical Specifications at 25°C (0, +3 V)
Parameter1 Insertion Loss2 Condition Ant-RX Frequency 0.1–1.0 GHz 1.0–2.0 GHz 2.0–2.5 GHz 0.1–1.0 GHz 1.0–2.0 GHz 2.0–2.5 GHz 0.1–1.0 GHz 1.0–2.0 GHz 2.0–2.5 GHz 0.1–1.0 GHz 1.0–2.0 GHz 2.0–2.5 GHz 0.1–2.5 GHz Min. 0.20 0.25 0.40 0.10 0.20 0.35 34 25 20 20 14 10 Typ. 0.30 0.35 0.50 0.25 0.30 0.40 36 30 24 27 17 14 1.2:1 1.3:1 Max. 0.35 0.50 0.65 0.30 0.45 0.50 Unit dB dB dB dB dB dB dB dB dB dB dB dB dB
Ant-TX
Isolation
Ant-RX
Ant-TX
VSWR3
Skyworks Solutions, Inc. [978] 241-7000 • Fax [978] 241-7906 • Email
[email protected] • www.skyworksinc.com
Specifications subject to change without notice. 10/02A
1
PHEMT GaAs IC High Linearity 3 V T/R SPDT Switch 0.1–2.5 GHz
AS217-000
Operating Characteristics at 25°C (0, +3 V)
Parameter Switching Characteristics4 Condition Rise, Fall (10/90% or 90/10% RF) On, Off (50% CTL to 90/10% RF) Video Feedthru 0/+3 V PIN = 34.5 dBm 0.9 GHz 0.9 GHz Frequency Min. Typ. 60 100 50 +35 +70 Max. Unit ns ns mV dBm dBc
Input Power for -0.1 dB Compression Harmonics H2, H3 (Transmit State) Control Voltages
VLow = 0 to 0.2 V @ 20 µA Max. VHigh = +2.7 V @ 100 µA Max. to +5 V @ 200 µA Max.
3. Insertion loss state. 4. Video feedthru measured with 1 ns risetime pulse and 500 MHz bandwidth.
1. All measurements made in a 50 Ω system, unless otherwise specified. 2. Insertion loss changes by 0.003 dB/°C.
Typical Performance Data (0, +3 V)
0 -0.1 -0.2 -0.3 -0.4 -0.5 -0.6 -0.7 -0.8 -0.9 -1.0 0 0.5 1.0 1.5 2.0 2.5 3.0 Ant-RX Ant-TX 0 -5 -10
Insertion Loss (dB)
Isolation (dB)
-15 -20 -25 -30 -35 -40 -45 -50 0 0.5 1.0 1.5
Ant-TX TX-RX
Ant-RX 2.0 2.5 3.0
Frequency (GHz)
Frequency (GHz)
Insertion Loss vs. Frequency
1.6 1.5 1.4
Isolation vs. Frequency
Absolute Maximum Ratings
Characteristic RF Input Power Value 4 W > 500 MHz 0/+6 V Control -0.2 V, +6 V -40°C to +85°C -65°C to +150°C
VSWR
1.3 RX-S22 1.2 1.1 1.0 0.5 1.0 TX-S11 1.5 TX-S22 2.0 2.5 3.0 RX-S11
Control Voltage Operating Temperature Storage Temperature
Frequency (GHz)
VSWR vs. Frequency
2
Skyworks Solutions, Inc. [978] 241-7000 • Fax [978] 241-7906 • Email
[email protected] • www.skyworksinc.com
Specifications subject to change without notice. 10/02A
PHEMT GaAs IC High Linearity 3 V T/R SPDT Switch 0.1–2.5 GHz
AS217-000
Truth Table
V1 VHigh 0
VHigh = +2.7 to +5 V.
Pin Out
V2 0 VHigh Ant–RX Isolation Insertion Loss Ant–TX Insertion Loss Isolation
GND V2 ANT V1
RX
TX
Note: Bond pad metalization: gold. Bond pad dimensions: 0.003 (0.075 mm) x 0.003 (0.075 mm). Back side metalization: none. See application note, Handling GaAs MMIC Die.
Skyworks Solutions, Inc. [978] 241-7000 • Fax [978] 241-7906 • Email
[email protected] • www.skyworksinc.com
Specifications subject to change without notice. 10/02A
3
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