Programmable Attenuators Model 150T dc to 18.0 GHz Model 151T dc to 4.0 GHz Model 152T dc to 26.5 GHz SmartStep® Relay Switched Programmable Attenuators, with built-in Microprocessor-Based Driver For Use with Weinschel 8210A Controller RoHS The attenuator elements located in the attenuator cell are created by a thin-film process which provides exceptional long-term stability, low power and temperature coefficients. This series of step attenuators uses a reed switching structure that provides rapid switching together with low insertion loss. Description Aeroflex / Weinschel’s line of intelligent programmable step attenuators with a built-in TTL interface (Figure 1). These models are designed to simplify the control and integration of these devices into subsystem and bench applications. These intelligent attenuators offer the same long reliable operation with exceptional accuracy and repeatability as with our other 150 Series Programmable Attenuators. They provide programmable adjustments of RF signal levels in precise steps of 1 dB, 5 dB, 10 dB, or with custom steps available. Each attenuator consists of a cascaded assembly of switched attenuator cells and a internal TTL interface. Non-Volatile Configuration Memory TTL/CMOS Compatible Digital Interface Single-Chip Microcontroller BUILT-IN DRIVER CIRCUITRY: 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 driver 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. This frees the system designer from such low-level details, allowing faster integration. 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 programmable attenuator to operate from a single input supply voltage. Other features include: Relay Drivers +5 V Regulator +12 to +15 V Input EMI Filters DC-DC Converter Figure 1. Built-In Driver Circuitry To Attenuator Relays o o o o o o Wide Variety of Frequency & Attenuation Ranges Broadband Frequency Coverage High Accuracy and Repeatability Long Life, 5 Million Cycles Per Cell Common 14 pin Interface Connector Custom Attenuation Ranges For additional information on the 150 Series, visit our website @ www.aeroflex.comw/AW/programmables.htm 224 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: 4/8/2015 Programmable Attenuators Specifications NOMINAL IMPEDANCE: 50 Ω FREQUENCY RANGE: Model 151T: dc to 4 GHz Model 150T: dc to 18 GHz Model 152T: dc to 26.5 GHz CELL CONFIGURATIONS: MAXIMUM SWR (50 Ω Characteristic Impedance): Frequency (GHz) dc-4 4-18 18-26.5 APPLICABLE MODELS 151T-11, 151T-15, 151T-31, 151-62T, 151T-75, 151T-110 1.50 --- --- Cell 11 15 31 55 62 70 70 75 90 110 1.90 --- 1 1 1 5 2 10 10 5 10 10 150T-11, 150T-15, 150T-31 150T-62, 150T-75, 150T-110 1.50 1 2 4 8 16 10 32 20 40 40 30 40 151T-70 (3 cell) 1.40 --- --- 3 2 2 2 20 16 20 20 20 20 20 150T-70 (3 cell) 1.40 1.60 --- 4 4 4 8 20 4 20 -- 10 30 40 152AT-70 (3 cell) 1.40 1.60 1.90 5 -- -- 4 -- 8 -- -- -- -- -- 152T-55, 152T-70, 152-75, 152T-90 1.40 1.60 1.90 DRIVER INTERFACE: Input Supply Voltage: +12.0 to +15.0V Control Signals: TTL/CMOS compatible Interface Modes: parallel / serial --- 0.90 2.20 --- 1.10 ---- ---- 150T-31, 150T-62 (5 cell) 1.10 2.60* ---- 151T-70 (3 cell) 0.70 --- --- +12.0 to +15.0 V 150T-70 (3 cell) 0.70 1.60 --- 25 mA 152AT-70 (3 cell) 0.90 2.00 2.98 150 mA (per cell, switching) 152T-55, 152T-70, 152T-75, 152T-90 0.90 2.00 2.98 Specification -0.5 min, 0.8 V max VIH 2.0 min, 5.25 V max IIN Supply current: ICELL Supply Current: POWER RATING: 50 μA min, 400 μA max 1 watt average, 100 watts peak (5 μsec pulse width; 0.5% duty cycle) TEMPERATURE: -20° to +70°C operating TEMPERATURE COEFFICIENT: <0.0001 dB/dB/C POWER SENSITIVITY: <0.001 dB/dB/ Watt RATED SWITCH LIFE: 5 million cycles per cell RF INPUT CONNECTORS: Rugged female 3.5 mm which mate nondestructively with SMA male connectors per MILSTD-39012. 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). SWITCHING TIME: 20 msec (includes settling time) CYCLING RATE: 4 Hz max per relay CONTROL PULSE WIDTH: 20 msec (minimum) REPEATABILITY: +0.1 dB typical per cell VIBRATION: MIL-STD-202F, Method 204D Cond B ALTITUDE: MIL-STD-202F, Method 105C Cond B, 50,000 Ft. SHOCK: MIL-STD -202F, Method 213B Cond B, except 10G, 6 msec HUMIDITY: MIL-STD-202F, Method 103B, Cond. B (96 Hrs. @ 95%, RH) 151T-11, 151T-15, 151T-75, 151T-110 150T-11, 150T-15, 150T-75, 150T-110 151T-31, 151T-62 (5 cell) Frequency (GHz) dc-4 4-18 18-26.5 --- Digital Interface: Parameter VIL Low Level input: IPU Pullup Current Power Supply: VIN Supply Voltage: APPLICABLE MODELS 0.90 DC Characteristics (at 25 °C): High Level input: MAXIMUM INSERTION LOSS (dB): *4-12.4 is 1.80, 12.4-18 is 2.60 WEIGHT: 5 Cell 350 g (12 oz) 4 Cell 290 g (9.0 oz) 3 Cell 230 g (8.0 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. OPTIONAL TEST DATA: Test Data is available at an additional cost for all programmable step attenuators models. Sweep Data across the programmable attenuator’s frequency band starting at 0.05 to 18.0/26.5 GHz for all primary cells with markers at 0.05, 4.0, 8.0, 12.4, 18.0 and 26.5 GHz. VSWR and Attenuation provided. 225 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: 4/8/2015 Programmable Attenuators ATTENUATION ACCURACY (+dB with respect to 0 dB reference): Model 150T/151T/152T-11 & 150T/151T/152T-15: Frequency Range (GHz) dc-4 4-12.4 12.4-18 18-26.5 2 0.2 0.3 0.6 0.6 3 0.3 0.4 0.6 0.7 4 0.3 0.4 0.6 0.8 Attenuation Setting (dB) 5 6 7 8 9 0.3 0.3 0.4 0.4 0.4 0.5 0.5 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.9 0.9 0.9 1.0 1.1 10 0.4 0.6 0.8 1.1 13 0.5 0.7 0.8 1.1 14 0.5 0.7 0.8 1.1 15 0.5 0.7 0.8 1.1 Model 150T/151T-75: Frequency Range (GHz) 5 10 dc-4 0.2 0.2 4-12.4 0.3 0.3 12.4-18 0.4 0.4 15 0.4 0.6 0.8 20 0.4 0.6 0.8 Attenuation Setting (dB) 25 30 35 40 45 0.5 0.5 0.7 0.7 0.9 0.9 0.9 1.2 1.2 1.5 1.2 1.2 1.6 1.6 2.0 50 55 60 65 0.9 1.1 1.1 1.2 1.5 1.8 1.8 2.1 2.0 2.4 2.4 2.8 70 1.2 2.1 2.8 75 1.4 2.1 2.8 1 0.2 0.3 0.5 0.5 11 0.5 0.7 0.8 1.1 12 0.5 0.7 0.8 1.1 Model 150T/151T-31: Frequency Range (GHz) dc-4 4-12.4 12.4-18 1 2 3 0.2 0.2 0.3 0.4 0.4 0.5 0.5 0.5 0.6 Attenuation Setting (dB) 4 5 6 7 8 9 10 0.3 0.3 0.3 0.4 0.4 0.5 0.4 0.5 0.6 0.6 0.7 0.6 0.7 0.6 0.6 0.6 0.6 0.7 0.7 0.8 0.8 11 12 13 0.5 0.5 0.5 0.7 0.7 0.7 0.8 0.8 0.8 14 0.5 0.7 0.8 15 0.5 0.7 0.8 Frequency Range (GHz) dc-4 4-12.4 12.4-18 17 0.5 0.8 0.9 19 0.6 0.9 1.0 20 0.6 0.9 1.0 21 0.6 0.9 1.0 Attenuation Setting (dB) 22 23 24 25 26 0.6 0.6 0.6 0.7 0.7 0.9 0.9 0.9 1.1 1.0 1.0 1.1 1.1 1.2 1.2 27 28 29 0.7 0.7 0.7 1.0 1.0 1.0 1.2 1.2 1.2 30 0.8 1.1 1.3 31 0.8 1.1 1.3 Frequency Range (GHz) dc-4 4-12.4 12.4-18 2 4 6 0.3 0.3 0.3 0.4 0.4 0.4 0.5 0.5 0.5 8 0.4 0.5 0.6 10 0.4 0.5 0.6 Attenuation Setting (dB) 12 14 16 18 20 0.5 0.5 0.5 0.5 0.5 0.6 0.6 0.6 0.7 0.7 0.6 0.8 0.8 0.8 0.8 22 24 26 0.5 0.5 0.5 0.7 0.8 0.8 0.8 1.0 1.0 28 0.5 0.8 1.0 30 0.6 0.8 1.2 Frequency Range (GHz) dc-4 4-12.4 12.4-18 34 0.6 1.0 1.4 40 0.7 1.1 1.6 42 0.7 1.3 1.8 Attenuation Setting (dB) 44 46 48 50 52 0.8 0.8 0.8 0.9 0.9 1.4 1.4 1.4 1.5 1.6 1.8 2.0 2.0 2.0 2.2 54 56 58 0.9 1.0 1.0 1.6 1.6 1.8 2.2 2.2 2.4 60 1.0 1.8 2.4 62 1.2 1.8 2.4 18 0.6 0.8 0.9 16 0.5 0.7 0.8 Model 150T/151T-62: 36 0.6 1.0 1.4 38 0.7 1.1 1.6 32 0.6 0.8 1.2 Model 150T/151T/152T-75: Frequency Range (GHz) dc-4 4-12.4 12.4-18 5 0.2 0.3 0.4 18 - 26.5 0.5 0.5 0.9 10 0.2 0.3 0.4 15 0.4 0.6 0.8 20 0.4 0.6 0.8 Attenuation Setting (dB) 25 30 35 40 45 0.5 0.5 0.7 0.7 0.9 0.9 0.9 1.2 1.2 1.5 1.2 1.2 1.6 1.6 2.0 0.9 1.2 1.2 50 55 60 65 0.9 1.1 1.1 1.2 1.5 1.8 1.8 2.1 2.0 2.4 2.4 2.8 70 1.2 2.1 2.8 75 1.4 2.1 2.8 1.6 1.6 2.0 2.0 2.4 2.4 2.8 2.8 2.8 Model 150T/151T-70, 150T/151T-110, 152AT-70: Frequency Range (GHz) dc-4 4-12.4 12.4-18 18-26.5 10 0.2 0.4 0.4 0.6 20 0.3 0.7 0.8 0.7 30 0.5 0.9 1.2 0.9 40 0.7 1.2 1.6 1.5 Attenuation Setting (dB) 50 60 70 80 90 0.9 1.0 1.2 1.4 1.6 1.5 1.8 2.1 2.4 2.7 2.0 2.4 2.8 3.2 3.6 1.6 2.2 2.9 --- --- 100 1.7 3.0 4.0 --- 110 1.9 3.0 4.0 --- 10 0.3 0.4 0.4 0.5 15 0.4 0.5 0.5 0.6 20 0.4 0.5 0.5 0.6 Attenuation Setting (dB) 25 30 35 40 45 0.4 0.6 0.6 0.7 0.7 0.5 0.7 0.8 0.9 0.9 0.5 0.8 1.0 1.1 1.1 0.6 0.9 1.2 1.4 1.4 50 0.8 1.0 1.2 1.5 55 1.0 1.3 1.6 2.0 Model 152T-55: Frequency Range (GHz) dc-4 4-12.4 12.4-18 18-26.5 5 0.2 0.3 0.4 0.5 Model 152T-70, 152T- 90: Frequency Range (GHz) dc-4 4-12.4 12.4-18 18-26.5 226 10 0.3 0.4 0.5 0.5 20 0.5 0.5 0.6 0.6 Attenuation Setting (dB) 30 40 50 60 70 0.6 0.7 0.8 1.0 1.1 0.7 0.9 1.0 1.3 1.5 0.8 1.1 1.2 1.4 1.7 0.9 1.4 1.5 1.8 2.3 80 1.1 1.6 1.8 2.4 90 1.2 1.7 2.1 2.8 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: 4/8/2015 Programmable Attenuators PHYSICAL DIMENSIONS: Models 150T, 151T, & 152T: DIM A B C 3 cell 83.3 (3.28) 76.2 (3.0) 101.6 (4.00) 4 cell 110.7 (4.36) 103.6 (4.08) 129.2 (5.09) 5 cell 136.1 (5.36) 129.1 (5.08) 154.4 (6.08) NOTE: 1. All dimensions are given in mm (inches) and are maximum, unless otherwise specified. 2. Unit available with RoHS compliant materials, specify when ordering. 150T Series Ordering Guide... Frequency Range dc-4 GHz dc-18 GHz dc-26.5 GHz NO. Attenuator Range/Step Size Cells 11/1 dB 15/1 dB 4 3 5 151T-11 151T-15 4 3 5 150T-11 4 3 N/A 31/1 dB 55/5 dB 62/2 dB 70/10 dB N/A 75/5 dB 90/10 dB 110/10 dB 151T-75 N/A 151T-110 150T-75 N/A 150T-110 152T-75 152T-90 N/A 151T-70 151T-31 150T-15 151T-62 N/A 150T-70 150T-31 NA N/A 150T-62 152T-55 NA 152T-70 152AT-70 227 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: 4/8/2015