3230-90 [APITECH]
Variable Attenuator, 0MHz Min, 1200MHz Max, 4.25dB Insertion Loss-Max;
| 型号： | 3230-90 |
| 厂家： | 
API Technologies Corp |
| 描述： | Variable Attenuator, 0MHz Min, 1200MHz Max, 4.25dB Insertion Loss-Max |
| 文件： | 总4页 (文件大小：161K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Weinschel
C O R P O R A T I O N
MODELS 3230, 3231, 3230T & 3231T
RF Programmable Attenuators
dc to 1.2 GHz
1 Watt
Ideal for Wireless/Cellular Applications.
MAXIMUM CHARACTERISTIC ZERO LOSS (dB):
Frequency Range (GHz)
3230-63
3230-90
3231-63.75
dc - 0.5
0.5 - 1.0
1.0 - 1.2
1.75
3.25
4.25
1.75
4.10
4.90
RATED SWITCH LIFE: 5 million operations per cell (typ)
SWITCHING TIME: 8 msec. maximum @ nominal rated
voltage.
CYCLING RATE: 5 Hz maximum
OPERATING VOLTAGE: +11 V to +16 V
+12 V to +17 V (TTL opt -1)
OPERATING CURRENT: 16 mA maximum per cell
TEMPERATURE RANGE (Operating): -40 to +70°C
POWER RATING: 1 watt average, 50 watts peak (5 µsec
pulse width; 1% duty cycle)
CONNECTORS: SMA female connectors per MIL-STD-
348 interface dimensions - mate nondestructively with
MIL-C-39012 connectors.
Features
o
Cost Effective design for Wireless/Cellular
Applications
o
Available in 6 or 8 Cell Configurations:
90 dB/10 dB steps
63.75 dB/0.25 dB steps
63 dB/1 dB steps
o
o
Optional TTL or SmartStep Interface
Custom Configurations including bus controlled
attenuator subsystems
CONTROL TERMINALS: 0.040 inch. (1 mm) diameter
solderable leads
CONSTRUCTION:
Specifications
NOMINAL IMPEDANCE: 50 Ω
FREQUENCY RANGE: dc to 1.2 GHz:
Housing:
Aluminum
Connectors:
Stainless steel body and
beryllium copper contacts.
MAXIMUM SWR:
WEIGHT:
3230
3231
3230T
3231T
125 g (4.5 oz)
155 g (4.9 oz)
219 g (5.9 oz)
189 g (5.5 oz)
Frequency Range (GHz)
SWR
dc - 1.0
1.0 - 1.2
1.30
1.45
ACCESSORIES
CELL CONFIGURATIONS:
SmartStep Interface: The Model 8210A SmartStep
Interface provides a flexible, low cost solution for the oper-
ation of programmable step attenuators and other
electromechanical devices under computer control.
Designed to interface to Weinschel's new line of SmartStep
programmable attenuators, the 8210A represents a new
concept in device control applications for bench test and
subsystem designs. The 8210A provides a high-level inter-
face from various industry standard communications
interfaces, including IEEE-488 and RS232/RS422/RS485,
to the SmartStep's serial Driver Interface Bus.
Model
Number
NO.
Attenuation
Cell
Increments
(dB)
Cells Range/Steps
(dB)
3230-63
3230T-63
6
6
8
63/1
1, 2, 4, 8, 16, 32
3230-90
3230T-90
90/10
10, 10, 10, 20, 20, 20
3231-63.75
3231T-63.75
63.75/0.25 0.25, 0.5, 1, 2, 4, 8,
16, 32
INCREMENTAL ATTENUATION ACCURACY:
Frequency
Range (GHz)
dc - 1.0
Accuracy
+ 0.2 dB or 2.0%
+ 0.3 dB or 2.0%
1.0 - 1.2
145
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
8/5/99
Weinschel
C O R P O R A T I O N
CONTROL CONFIGURATION:
Standard Unit: One terminal is connected to case ground
and the remaining terminals are provided for activation of
individual cells. Attenuation is fail-safe to "0" setting in the
absence of a control voltage. Application of a voltage (+) to
a particular cell causes it to switch to the attenuate position.
Non-Volatile
Configuration
Memory
Units with TTL Option: Units with this options are supplied
with a very low profile connectorized TTL interface board
mounted directly to the control terminals. This TTL interface
option is available with a 10 pin ribbon cable connector and
is supplied with a mating connector. Refer to Physical
Dimensions for mating connector pin/wiring details. Two
wires are specified for supply voltage and ground. The
remaining wires will accept TTL control signals to activate or
de-activate a particular attenuation cell. A TTL high will
energize a cell to the high attenuation state, whereas a TTL
low will maintain a cell in its zero attenuation state.
TTL/CMOS
Compatible
Digital Interface
Single-Chip
Microcontroller
To
Relay
Drivers
Attenuator
Relays
+5 V
Regulator
+12 to
+15 V
Input
EMI
Filters
To order 3230 Series Attenuators with this option add -1 to
basic model number for ribbon cable connector. Example:
Model 3230-90 with a TTL interface would be 3230-90-1.
Figure 1. SmartStep Driver Circuitry
Note: Control is non-latching and requires a continuous
control signal for the period of time in which attenuation is
required.
wide variety of attenuator and driver-dependant parame-
ters, including serial number, attenuator cell dB values,
relay configurations, and switching requirements, which are
2
all accessable via the I C interface.
TTL DRIVER SPECIFICATIONS:
SmartStep Driver Interface Specifications:
INTERFACE CONNECTOR: Option -1: 10 pin .025 square
post header on .1 center. Mates with Amp connector
746285-1 or equivalent.
Input Supply Voltage:
Control Signals:
+12.0 to +15.0V
TTL/CMOS compatible
parallel/ I2C serial
INPUT VOLTAGE:
V
High= +2.0V minimum
IN
Interface Modes:
+5.0V typical
Vcc maximum
DC Characteristics (at 25°C):
Digital Interface:
Parameter
V
I
Low = 0 minimum
IN
Specification
-0.5 min, 0.8V max
0.8 maximum
VI
Low Level input:
L
INPUT CURRENT:
(V =2.4 V) = 55 µA
IN IN
V
High Level input: 2.0 min, 5.25V max
IH
I
(V =3.85 V) = 280 µA
IN IN
I
Pullup Current
50 µA min, 400 µA max
PU
SUPPLY CURRENT:
SUPPLY VOLTAGE:
I
=25 µA maximum per cell
CC
Power Supply:
V
=+12.0 to +15 V
V
Supply Voltage:
+12.0 to +15.0V
25 mA
CC
IN
I
Supply current:
Supply Current:
IN
TEMPERATURE RANGE (Operating): -40 to +70 °C
I
150 mA (per cell, switching)
CELL
Units with SmartStep driver Circuitry (Figure 1): The
SmartStep attenuators feature an internal microcontroller-
based driver that provides a TTL-level digital interface for
control of the attenuator relays. This card simplifies oper-
ation and interfacing requirements, while at the same time
providing for greatly enhanced flexability over past designs.
User-selectable modes of operation include both parallel
TEMPERATURE:
-20° to +70°C operating
-55° to +85°C nonoperating
INTERFACE CONNECTOR: 14 pin .025 square post
header on .1 center, mates with Amp connector 746285-2 or
equivalent (one mating connector included with each unit).
MODEL NUMBER DESCRIPTION:
Example:
2
and serial I C bus. The parallel mode provides a simple,
one-bit per relay on/off control with internal pullups for use
primarily in single attenuator applications. This mode allows
the attenuator to be controlled via a variety of methods,
such as a TTL-level digital output port, or mechanical toggle
3230* - XX - X
2
Basic
Model
Number
Attenuation
Value (dB)
TTL Option
(Add -1)
Example: 3230-63-1
switches. The I C mode provides a two-wire serial bus
structure and protocol for connecting a number of devices to
a single host control interface, suitable for use in larger sys-
tem and sub-system applications. The SmartStep contains
non-volatile configuration memory that is used to hold a
* Add T to Basic Model Number when ordering SmartStep
Control Circuitry.
146
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
Weinschel
C O R P O R A T I O N
PHYSICAL DIMENSIONS:
Model 3230 & 3231:
Model No.
3230-X
No. Cells
A
B
C
D
6
8
85.6 (3.37)
104.6 (4.12)
5 EQ SPCS @ 10.16 (.40) = 50.80 (2.00)
7 EQ SPCS @ 10.16 (.40) = 71.12 (2.80)
78.99 (3.11)
98.04 (3.860)
17.3 (0.68)
16.8 (0.66)
3231-X
Model 3230 & 3231 w/TTL Option -1:
Control Connector J3 Pin Locations:
TTL Conn
3230-63-1 3230-90-1 3231-63.75-1
PIN No. (J3)
dB (Cell)
dB (Cell)
dB (Cell )
1
2
NC
NC
32
NC
32
0.25
0.5
1
NC
3
20
4
1
10
5
2
10
2
Model No.
3230-X-1
3231-X-1
E
6
4
20
4
24.6 (0.97)
37.8 (1.48)
7
8
10
8
8
16
20
16
9
COM
+Vcc
COM
+Vcc
COM
+Vcc
10
NC = Not Connected
NOTE: All dimensions are given in mm (inches) and are maximum, unless otherwise specified.
147
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
Weinschel
C O R P O R A T I O N
PHYSICAL DIMENSIONS:
Model 3230T & 3231T:
Model No.
3230T-X
No. Cells
6
A
B
C
85.6 (3.37)
24.0 (0.98)
78.99 (3.11)
3231T-X
8
104.6 (4.12)
34.8 (1.37)
98.04 (3.86)
NOTE: All dimensions are given in mm (inches) and are maximum, unless otherwise specified.
148
5/25/99
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
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