Weinschel
C O R P O R A T I O N
Model 3203 & 3204
Phase Compensated Programmable Attenuators
Ruggedized SMA Connectors
dc to 1.5 GHz
1 Watt
INCREMENTAL ATTENUATION ACCURACY:
+0.3 dB or 1.0%
INCREMENTAL PHASE DEVIATION:
10° maximum for
any attenuator setting.
INCREMENTAL TEMPERATURE COEFFICIENT:
0.00005 dB/dB/°C
POWER RATING:
1 watt average to 25 °C ambient tem-
perature, derated linearly to 0.25 watt @ 71 °C. 50 watts
peak (5
µsec
pulse width; 1% duty cycle)
POWER COEFFICIENT:
< 0.005 dB/dB/watt
Features
o
Usable to 2.0 GHz
o
Low Current Gain
o
Switching Time
- Cell switching is completed, after
electrical command, within 6 msec.
o
Long Switch Life
- Each cell has a rated switch life of
5,000,000 switching operations.
o
Designed to meet many of the environmental
requirements of MIL-A-24215, Class IV
RATED SWITCH LIFE:
5 millon cycles operations per cell
@ 0 dBm
SWITCHING TIME:
6 msec maximum at nominal rated
voltage
RELEASE TIME:
3 msec maximum
CYCLING RATE:
5 Hz maximum per relay
OPERATING VOLTAGE:
minimum)
+12V (+16V maximum; +9V
OPERATING CURRENT:
14 mA typical per cell @ +12V
TEMPERATURE RANGE (Operating):
-55°C to +71°C
CALIBRATION:
Test data is available at additional cost.
CONNECTORS:
SMA female connectors per MIL-STD-348
interface dimensions - mate nondestructively with
MIL-C-39012 connectors.
CONTROL TERMINALS:
0.040 inch (1 mm) diameter
solderable leads. May be used with PC board sockets/
receptacles.
CONSTRUCTION:
Aluminum
Stainless steel body and beryllium
copper contacts.
Control terminals: Brass/Copper, Silver plated
WEIGHT (Typical):
3203-1:
3204-1:
108 g (3.9 oz)
84 g (3.0 oz)
Housing:
Connectors:
Specifications
NOMINAL IMPEDANCE:
50
Ω
FREQUENCY RANGE:
dc to 1.5 GHz
MAXIMUM SWR:
Frequency Range (GHz)
dc - 1.0
1.0 - 1.5
CELL CONFIGURATIONS:
Model
Number
3203-1
3204-1
NO.
Cells
8
6
Attenuation
Range/Steps
(dB)
103/1
55/1
Cell
Increments
(dB)
1, 2, 4, 8, 16, 24, 24,
24
1, 2, 4, 8, 16, 24
SWR
1.25
1.35
CONTROL CONFIGURATION:
One terminal is connected to case ground and the remain-
ing terminals are provided for activation of individual cells.
Attenuation is fail-safe to "0" setting in the absence of a con-
trol voltage. Application of a voltage (+) to a particular cell
causes it to switch to the attenuate position.
Note: Control is non-latching and requires a continuous
control signal for the period of time in which attenuation is
required.
MAXIMUM INSERTION LOSS (dB):
Frequency Range (GHz)
3203-1
dc - 0.5
0.5 - 1.0
1.0 - 1.5
2.50
3.25
3.75
3204-1
2.00
2.75
3.25
5305 Spectrum Drive, Frederick, MD 21703-7362
s
TEL: 301-846-9222, 800-638-2048
s
Fax: 301-846-9116
web: www.weinschel.com
s
email: sales@weinschel.com
141
5/25/99
GD32 MCU
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