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Programmable Switches
Model 4284
Digital Switch, SP4T
0.1 to 6 GHz
TTL & USB Control, SMA Connectors
RoHS
TEST DATA: Test data can be provided at additional cost.
CONNECTORS: SMA female connectors - mates nondestructively with other SMA connectors per MIL-C-39012,
3.5mm and other 2.92mm connectors.
CONTROL CONNECTOR: The TTL control connector is an
AMP-Latch 10 pin ribbon cable connector that mates with
AMP P/N 746285-1 (supplied with each unit). The USB is a
5-pin female series B mini socket and mates with most standard USB 5-pin male series B mini plug connectors.
Features
o Ideal for Automated Test Equipment (ATE), WiMAX,
LTE, WiFi, 3G/4G Fading Simulators, Engineering/
Production Test Lab environments
o Excellent Solid-state Repeatability & Performance
o Uninterrupted RF when changing switch positions
o Control Software Included
o Ruggedized Construction
Description
Aeroflex / Weinschel's New series of MMIC Digital Switches
operates over the 0.1 to 6 GHz frequency range. This single
pole 4 throw switch can be controlled using either parallel
TTL or USB interfaces.
Specifications
50 Ω
0.1 to 6.0 GHz
Terminated SP4T
1 μsec maximum (TTL)
5 msec typical (USB)
1.5:1 maximum
NOMINAL IMPEDANCE:
FREQUENCY RANGE:
SWITCH TYPE:
SWITCHING SPEED:
VSWR:
MAXIMUM INSERTION LOSS (dB):
Frequency (GHz)
0.1 - 3.0
3.0 - 6.0
Typical
Minimum
2.5 dB
4.0 dB
3.0 dB
4.5 dB
ISOLATION, MINIMUM(dB):
Frequency (GHz)
0.1 - 3.0
3.0 - 5.0
5.0 - 6.0
Typical
Maximum
60 dB
48 dB
38 dB
55 dB
42 dB
30 dB
POWER RATING:
OPERATING VOLTAGE:
CONTROL LOGIC:
1 Watt maximum
+5 V @ 50 mA
TTL or USB
TEMPERATURE RANGE:
0°C to + 70°C
WEIGHT: 83 g (2.92 oz)
Control Software Included
Aeroflex / Weinschel’s Labview based USB
Control Center Software (UCS) can also be
used in the operation of this series of digital
switches. The UCS will allow the user to
setup, control and perform test and
measurements using these digital switches
over a standard USB 2.0 communication
interface.
CONTROL CONFIGURATION:
Aeroflex / Weinschel’s LabVIEWTM based Switch Control
Center Software (SCCS) is to be used in conjunction with
the operation of the Aeroflex / Weinschel 4284 series
of programmable switches. The SCCS will allow the user
setup, control and perform tests and measurements
using these programmable switches over standard
communication interfaces.
Units are supplied with both parallel-TTL and USB 2.0 interfaces. The mode of operation is determined by the source
of DC power to the unit. NOTE: Do not simultaneously
connect DC power to the J4 TTL connector while the USB
is connected or to the USB while the J4 TTL is connected.
USING TTL CONTROL: Each unit is supplied with a
mating 10 pin connector (Amp 746285-1). Refer to Physical
Dimensions for mating connector pin/wiring details. Two
pins are specified for supply voltage and ground. The
remaining pins will accept TTL control signals to activate or
de-activate a particular switch position.
USING USB CONFIGURATION: The USB interface is
compatible with standard USB 2.0 interfaces. In USB mode,
DC power to the switch is provided by the host USB connection. The switch operates as a USB CDC device and
accepts simple ASCII text commands. This allows the unit
to be controlled from any system capable of sending data
via a standard COM port-style interface.
1
5305 Spectrum Drive, Frederick, MD 21703-7362 s TEL: 301-846-9222, 800-638-2048 s Fax: 301-846-9116
web: www.aeroflex.com/weinschel s email: weinschel-sales@aeroflex.com
Revision Date: 5/7/2015
Programmable Switches
PHYSICAL DIMENSIONS:
PIN 1
PIN 5
2X 4-40 UNC - 2B
X 4.1[.16 DEEP]
DETAIL A
SCALE 4 : 1
14.8
[.58]
82.8
[3.26]
8.9
[.35]
9.5
[.38]
6.1
[.24]
50.8
[2.00]
16.0
[.63]
SEE
DETAIL
A
PIN 1
91.7
[3.61]
9.7
[.38]
63.5
[2.50]
PIN 2
93.3
[3.67]
98.0
[3.86]
82.0
[3.23]
78.9
[3.11]
53.4
[2.10]
53.4
[2.10]
15.1
[.59]
15.1
[.59]
8.3
[.33]
3.2
[.13]
4X 2-56 UNC - 2B
X 4.1[.16 DEEP]
41.4
[1.63]
7.1
[.28]
D0
D1
OUT
0
0
RFout1
0
1
0
1
1
50.8
[2.00]
16.0
[.63]
2.4
[.09]
9.5
[.38]
PIN Designation Truth Table:
1
4X 2-56 UNC - 2B
X 4.1[.16 DEEP]
RFout2
RFout3
RFout4
USB Control Connector J3 Pin Locations:
USB Conn
PIN No. (J3)
Function
1
V BUS +5 V
2
Data-
3
Data+
4
ID (NC)
5
GND
NOTES:
1. All dimensions are given in mm (inches) and are maximum, unless otherwise specified.
2. As an alternate traditional TTL control, the control pins (D0 and D1) can be poered by
PULL-UP 2 or PULL-UP 1. The Bootloader pin ia a no connect pin for factory use only.
TTL Control Connector J4
Pin Locations (See note 2):
TTL Conn
PIN No. (J4)
Function
1
D0
2
D1
3
NC
4
NC
5
NC
6
PULL-UP2
7
PULL-UP1
8
Bootloader N
9
+5V
10
GND
NC = Not Connected.
2
5305 Spectrum Drive, Frederick, MD 21703-7362 s TEL: 301-846-9222, 800-638-2048 s Fax: 301-846-9116
web: www.aeroflex.com/weinschel s email: weinschel-sales@aeroflex.com
Revision Date: 5/7/2015