V 4
Features
• Integral TTL Driver
• Isolation: 50 dB Typ. At 1 GHz
• Low DC Power Consumption
• Surface Mount Package
• Low Cost/High Performance
• 50 Ohm Nominal Impedance
Description
M/A-COM’s SW15-0314 is a GaAs MMIC SP4T absorptive switch with an integral silicon ASIC driver. This device is in a 24-lead ceramic surface mount package. These switches exhibit excellent performance from DC to 3 GHz, with very low DC power dissipation. The SW15-0314 is ideally suited for wireless infrastructure applications. Available with enhanced performance as fully hermetic version. Environmentally screenable as SW-314.
Functional Schematic
PIN 13 C3
C4
GND
GND
GND
RF3
GND
GND
RF4
GND
GND
PIN 24 GND
Ordering Information
Part Number
SW15-0314
SW15-0314-TB
Truth Table
TTL Control Inputs
C1 C2 C3 C4
1 0 0 0
0
0
0
1
0
0
0
1
0
0
0
1
Package
CR-14
Unit Mounted on Test Board
Condition of Switch
RF Common to Each RF Port
RF1
On
RF2
Off
RF3
Off
RF4
Off
Off
Off
Off
On
Off
Off
Off
On
Off
Off
Off
On
0 = TTL Low 1 = TTL High
Absolute Maximum Ratings 1,2
Parameter
Max Input Power
0.05 GHz
0.5 - 3.0 GHz 2
Bias Voltages
Vcc
Vee
Control Voltage 3
Operating Temperature
Storage Temperature
Absolute Maximum
+27 dBm
+34 dBm
-0.5 to +5.5V
-8.5V to +0.5V
-0.5V, to Vcc +0.5V
-40°C to +85°C
-65°C to +150°C
1. Operation of this device above any one of these parameters may cause permanent damage.
2. When the input power is applied to the terminated port, the absolute maximum is +30 dBm.
3. Standard CMOS TTL interface, latch-up will occur if logic signal is applied prior to power supply.
C2 PIN 12
C1
Vcc
Vee
GND
RF2
GND
GND
RF1
GND
GND
RFC PIN 1
M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
„ North America: Tel. (800) 366-2266
„ Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
„ Europe: Tel. +44 (1908) 574200, Fax+44 (1908) 574300
1

GaAs SP4T Absorptive Switch, DC - 3 GHz SW15-0314
V 4
Electrical Specifications 4,5 , T
A
= +25°C
Parameter
Insertion Loss
Isolation
VSWR
VSWR
Trise, Tfall
Ton, Toff
Transients
1 dB Compression
IP3
IP2
Vcc
Vee
Icc
Iee
Test Conditions
—
—
RFC, RF1 - RF4 (On)
RF1 - RF4 (Off)
10% to 90%
50% Control to 90% / 10% RF
In-Band (peak-peak)
Input Power
Two-Tone Input Power up to +5 dBm
Two-Tone Input Power up to +5 dBm
—
—
Vcc = 4.5 to 5.5 V
Vctl = 0 to 0.8V, or Vcc –2.1V to Vcc
Vee = -5.0V to -8.0V
Frequency
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
DC - 0.5 GHz
DC - 1.0 GHz
DC - 2.0 GHz
DC - 3.0 GHz
—
—
—
0.05 GHz
0.5 GHz to 3 GHz
0.05 GHz
0.5 GHz to 3 GHz
0.05 GHz
0.5 GHz to 3 GHz
—
—
—
— dBm dBm dBm dBm dBm dBm
V
V mA
Units dB dB dB dB dB dB dB dB
Ratio
Ratio
Ratio
Ratio
Ratio
Ratio
Ratio
Ratio ns ns mV mA
4. All specifications apply when operated with bias voltages of +5V for Vcc and –5V for Vee.
5. When DC blocks are used, a 10K ohm return to GND is required on the RFC port.
—
—
—
—
—
—
4.5
-8.0
—
Min
—
—
—
—
50
40
30
25
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
5.5
-5.0
4.0
Max
1.3
1.4
1.6
1.8
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1.0
+20
+27
+35
+46
+45
+60
5.0
—
0.2
Typ
1.0
1.2
1.2
1.4
60
50
40
35
1.6:1
1.6:1
1.6:1
1.6:1
1.3:1
1.5:1
1.9:1
2.4:1
50
150
50
0.1
M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
„ North America: Tel. (800) 366-2266
„ Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
„ Europe: Tel. +44 (1908) 574200, Fax+44 (1908) 574300
2

GaAs SP4T Absorptive Switch, DC - 3 GHz
Typical Performance Curves
2
Insertion Loss vs. Frequency
+85°C +25°C -55°C
1.5
1
0.5
0
0.0
0.5
1.0
1.5
2.0
Frequency (GHz)
2.5
3
VSWR vs. Frequency
RF1-RF4 (Off)
2.20
2.00
1.80
1.60
1.40
1.20
1.00
0.0
RFC
0.5
1.0
1.5
2.0
Frequency (GHz)
RF1-RF4 (On)
2.5
3
SW15-0314
Isolation vs. Frequency
90
80
70
60
50
40
30
20
10
0
0.0
0.5
1.0
1.5
2.0
Frequency (GHz)
2.5
3
CR-14
V 4
M/A-COM Inc. and its affiliates reserve the right to make changes to the product(s) or information contained herein without notice.
Visit www.macom.com for additional data sheets and product information.
„ North America: Tel. (800) 366-2266
„ Asia/Pacific: Tel.+81-44-844-8296, Fax +81-44-844-8298
„ Europe: Tel. +44 (1908) 574200, Fax+44 (1908) 574300
3