Programmable Attenuators Model 3200T SmartStep® Programmable Attenuators dc to 3.0 GHz 1 Watt with built-in Microprocessor-Based Driver For Use with Weinschel 8210A Controller CELL CONFIGURATIONS: Model Number NO. Cells Attenuation Range/Steps (dB) Cell Increments (dB) 3200T-1E 8 127/1 1, 2, 4, 8, 16, 32, 64* 3200T-2E 8 63.75/0.25 3201T-1E 5 31/1 3201T-2 5 120/10 10, 20, 30, 60** Features 3205T-1E 4 70/10 10, 20, 20, 20 o Widest Selection of Attenuation Ranges & Steps Sizes o Built-In TTL\CMOS Interface Driver Circuitry o High Quality Construction and Connectors o Special Configurations Available Upon Request - Custom Cell/Step Size Configurations - Higher Frequencies (See 3400 Series) 3205T-2E 4 55/5 5, 10, 20, 20 3205T-3E 4 1.5/0.1 0.1, 0.2, 0.4, 0.8 3206T-1E 6 63/1 1, 2, 4, 8, 16, 32 3209T-1E 10 64.5/0.1 Description MAXIMUM SWR: This line of intelligent programmable step attenuators with a built-in digital interface are designed to simplify the control and integration of these devices into subsystem and bench applications. This series of Programmable Step Attenuators is designed for use in automatic test equipment and OEM systems operating in the dc to 3 GHz frequency range. These models are available in many standard attenuation ranges and cell configurations. Each cell contains a doublepole, double-throw relay that provides a minimum loss or attenuated path for the RF signal. Frequency Range (GHz) Microstrip circuitry and special compensation techniques produce flat attenuation versus frequency characteristics. To minimize RF leakage, the 3200T Series Attenuators are provided with gold-plated contact areas and feedthrough filters at each control terminal. Specifications NOMINAL IMPEDANCE: FREQUENCY RANGE: 50 Ω dc to 3.0 GHz (3200T-2 is dc to 2 GHz) 0.25, 0.5, 1, 2, 4, 8, 16, 32 1, 2, 4, 8, 16 0.1, 0.2, 0.4, 0.8, 1, 2, 4, 8, 16, 32 *64 dB cell comprised of two 32 dB cells 3200T-XE, 3201T-1E 3205T-XE, 3206T-1E 3209T-1E 1.25 1.40 1.35 1.45 dc - 2 2-3 INCREMENTAL ATTENUATION ACCURACY: Frequency Accuracy Range (GHz) dc - 0.5 0.5 - 1 1 -3 + 0.2 dB or 0.5% + 0.2 dB or 1.0% + 0.3 dB or 2.0% MONOTONICITY: 10 MHz to 3.0 GHz (minimum 1 dB change) POWER COEFFICIENT: <0.002 dB/dB/watt INCREMENTAL TEMPERATURE COEFFICIENT: 30 & 32 dB cells: 0.0005 dB/dB/°C All other cells: 0.0002 dB/dB/°C 215 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: [email protected] Revision Date: 6/2/2014 Programmable Attenuators Specifications - Con’t MAXIMUM INSERTION LOSS (dB): Frequency Range (GHz) 3200T-1E 3200T-2E 3201T-1E 3201T-2 3205T-1E, 3205T-2E 3205T-3E 3206T-1E 3209T-1E 2.50 3.20 3.50 4.00 4.70 1.70 2.20 2.50 2.80 3.25 1.50 1.75 2.00 2.25 2.60 2.20 2.40 2.80 3.10 3.70 3.00 3.60 4.20 4.60 5.50 dc - 0.5 0.5 - 1.0 1.0 - 1.5 1.5 - 2.0 2.0 - 3.0 POWER RATING: 1 watt average to 25°C ambient temperature, derated linearly to 0.25 watt @ 71°C. 50 watts peak (5 μsec pulse width; 1% duty cycle) RATED SWITCH LIFE: 5 million cycles operations per cell @ 0 dBm CYCLING RATE: 5 Hz maximum per relay DRIVER INTERFACE: Input Supply Voltage: Control Signals: Interface Modes: DC Characteristics (at 25 °C): Parameter VIL Low-level input V: +12.0 to +15 V TTL/CMOS compatible parallel / serial Specification -0.5 V min, 0.8 V max VIH IPU VIN High-level input V: 2.0 V min, 5.25 V max Pullup current 50 μA min, 400 μA max Supply Voltage: +12.0 to +15.0 V IIN Supply current: 25 mA ICELL (digital section) Supply current: 30 mA (per cell) continuous TEMPERATURE RANGE (Operating): -20°C to +70°C TEST DATA: Test data is available at additional cost. CONNECTORS: SMA female connectors per MIL-STD-348 interface dimensions - mate nondestructively with MIL-C-39012 connectors. INTERFACE CONNECTOR: 14 pin .025 square post header on .1 center. Mates with Amp connector 746285-2 or equivalent. CONSTRUCTION: Housing: Connectors: WEIGHT: 216 Aluminum Stainless steel body and beryllium copper contacts. 3200T-XE 3201T-XE 3205T-XE 3206T-XE 3209T-XE 165 132 132 132 218 g g g g g (8.4 (7.3 (7.3 (7.3 (9.7 oz) oz) oz) oz) oz) ACCESSORIES Programmable Attenuator/Switch Controller: The Model 8210A Programmable Attenuator/Switch Controller provides a flexible, low cost solution for the operation of programmable step attenuators and other electromechanical devices under computer control. Designed to interface to Aeroflex / Weinschel's intelligent programmable attenuators, the 8210A represents a new concept in device control applications for bench test and subsystem designs. The 8210A provides a high-level interface from various industry standard communications interfaces, including IEEE-488 and RS232/RS422/RS485, to the programmable attenuator’s serial Driver Interface Bus. CONTROL CONFIGURATION These programmable attenuators feature an internal microcontroller-based driver that provides a TTL-level digital interface for control of the attenuator relays. This card simplifies operation and interfacing requirements, while at the same time providing for greatly enhanced flexibility over past designs. User-selectable modes of operation include both parallel and serial 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 switches. The device bus 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 system and sub-system applications. The digital interface contains non-volatile configuration memory that is used to hold a wide variety of attenuator and driver-dependent parameters, including serial number, attenuator cell dB values, relay configurations, and switching requirements, which are all accessible via the digital interface. In either operational mode, the microcontroller enters an idle condition during periods of inactivity, turning off all on-board clocks, reducing EMI concerns, and lowering power consumption. On-board regulation for the digital circuitry allows the attenuator to operate from a single input supply voltage. 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: [email protected] Revision Date: 6/2/2014 Programmable Attenuators PHYSICAL DIMENSIONS: Model 3200T, 3201T, 3205T, & 3206T: 34.0 (1.34) MAX "D" Model No. 3200T-XE No. Cells 8 A 101.6 (4.0) B 31.8 (1.25) C 88.9 (3.50) D 95.2 (3.75) 3201T-XE 3205T-XE 5/4 76.2 (3.00) 19.1 (0.75) 63.5 (2.50) 69.8 (2.75) 4 72.4 (2.85) 19.1 (0.75) 46.2 (1.82) 3206T-XE 52.6 (2.07) 6 81. 3+0.5 (3.20+0.02 21.46 (0.85) 68.6 (2.70) 75.18 (2.96) Model 3209T: NOTE: All dimensions are given in mm (inches) and are maximum, unless otherwise specified. 217 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: [email protected] Revision Date: 6/2/2014