152A-90-1 - Aeroflex / Weinschel

5305 Spectrum Drive, Frederick, MD 21703-7362 TEL: 301-846-9222, 800-638-2048 Fax: 301-846-9116

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112

Revision Date: 11/28/07

Programmable Attenuators

Model 150 dc to 18.0 GHz

Model 151 dc to 4.0 GHz

Model 152 dc to 26.5 GHz

Relay Switched Programmable Attenuators

Description

The Model 150, 151 and 152 Programmable Step

Attenuators represent the widest variety of programmable

attenuators available. This attenuator design is the result of

an extensive development program and offers long reliable

operation with exceptional accuracy and repeatability.

These attenuators can 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

(Figure 1). The attenuator

elements located in the

attenuator cell are created

by a thin-film process

which provides excep-

tional long-term stability,

low power and tempera-

ture coefficients. This

series uses a reed switch-

ing structure that provides

rapid switching together

with low insertion loss.

Other features include:

oBroadband Frequency Coverage

oHigh Accuracy and Repeatability

oLong Life, 5 Million Cycles Per Cell

o3, 4, and 5 Cell Configurations

PROGRAMMABILITY: In each programmable step

Attenuator, solenoids are used to switch the internal resistor

card of each cell into and out of the circuit. Once the cell is

switched, the solenoid is magnetically latched into position

and is able to withstand extreme shock and vibration.

Internal circuitry is included to interrupt the coil current after

switching is complete. This reduces power dissipation even

if power is continuously applied. The switching time for each

cell is rated at 20 msec maximum which includes the con-

tact settling time.

BROADBAND ACCURACY & LOW SWR: The use of

Aeroflex / Weinschel's proprietary thin-film resistor process

provides these programmable step attenuators with a high

degree of accuracy and the lowest possible SWR uncer-

tainty (refer to specifications for actual values). This thin film

process permits the construction of circuits which are truly

distributed and without stray reactances, even at the higher

microwave frequencies.

RELIABILITY: Each programmable step attenuator is

composed of 3 to 5 (4 in most models) cells. As with all

mechanical designs, usable life becomes a primary concern

to the user. With this in mind Aeroflex / Weinschel backs all

these attenuators with a rated switch life of 5 million

operations per cell. Standardized testing is also performed

on each programmable step attenuator over its operating

frequency range by a computer controlled Aeroflex /

Weinschel Attenuation Measurement System which is

traceable to NIST standards.

ENVIRONMENTAL: These Model 150 Programmable Step

Attenuators have undergone an extensive environmental

qualification program and have been subjected to

temperature, shock, vibration, and humidity conditions per

MIL-STD-202F. These programmable step attenuators

operate within these specifications at an ambient

temperature of -20° to +75°C. Operating beyond these

limits will adversely affect the accuracy and could damage

the internal circuitry.

For additional information on the 150 Series, visit our website @ www.aeroflex-weinschel.com/programmables.htm

Figure 1. Cell Schematic

RoHS



113

5305 Spectrum Drive, Frederick, MD 21703-7362 TEL: 301-846-9222, 800-638-2048 Fax: 301-846-9116

web: www.aeroflex-weinschel.com email: weinschel-sales@aeroflex.com Revision Date: 11/28/07

Programmable Attenuators

VOLTAGE MODEL(S)

+ 24 V with 150-XX, 151-XX, 152-XX,

Viking Connector 152A-XX

+ 24 V with 150-XX-1, 151-XX-1, 152-XX-1

Ribbon Cable 152A-XX-1

+ 5 V with 150-XX-2, 151-XX-2, 152-XX-2

Viking Connector 152A-XX-2

+ 5 V with 150-XX-3, 151-XX-3, 152-XX-3

Ribbon Cable 152A-XX-3

Cell 1 Cell 2 Cell 3 Cell 4 Cell 5

ATTN Cells ATTN ATTN ATTN ATTN ATTN Power

Value No. Bypass Element Bypass Element Bypass Element Bypass Element Bypass Element +Vdc

11 dB 4 0 dB 1 dB 0 dB 4 dB 0 dB 2 dB 0 dB 4 dB - - - - - -

15 dB 4 0 dB 1 dB 0 dB 8 dB 0 dB 2 dB 0 dB 4 dB - - - - - -

31 dB 5 0 dB 1 dB 0 dB 8 dB 0 dB 2 dB 0 dB 16 dB 0 dB 4 dB

55 dB 4 0 dB 5 dB 0 dB 10 dB 0 dB 20 dB 0 dB 20 dB - - - - - -

70 dB 4 0 dB 10 dB 0 dB 20 dB 0 dB 20 dB 0 dB 20 dB - - - - - -

3 0 dB 10 dB 0 dB 40 dB 0 dB 20 dB - - - - - - - - - - - -

75 dB 4 0 dB 5 dB 0 dB 40 dB 0 dB 20 dB 0 dB 10 dB - - - - - -

90 dB 4 0 dB 10 dB 0 dB 30 dB 0 dB 20 dB 0 dB 30 dB - - - - - -

110 dB 4 0 dB 10 dB 0 dB 40 dB 0 dB 20 dB 0 dB 40 dB - - - - - -

Round PIN # 5 6 9 10 7 8 11 12 3 4 1

Conn.

3 & 4 Cell Wire Violet Yellow Orange Blue Black Green Brown White - - - - - - Red

5 Cell Color Black White Green Orange Blue WHT/BLK RED/BLK GRN/BLK ORN/BLK BLU/BLK Red

Ribbon PIN# 13 2 3 9 11 5 4 10 8 7 6

Cable Wire Orange Yellow Blue Brown Purple Black Gray White Orange yellow Red

Conn. Color

Table provides standard attenuation ranges, increments, and cell configurations for all Aeroflex / Weinschel Programmable Step

Attenuators (Models 150, 151, 152, & 152A)

150 Series Cell Configurations...

Specifications

NOMINAL IMPEDANCE: 50 Ω

FREQUENCY RANGE: Model 151: dc to 4 GHz

Model 150: dc to 18 GHz

Model 152: dc to 26.5 GHz

OPERATIONAL VOLTAGE: + 24V Nominal (+20V mini-

mum to +30V maximum) or +5V Nominal (+4V minimum* to

+7V maximum)

*Minimum operating voltage derated to +4.25 V @ 55°C and further

derated to +4.5 V @ 75°C

POWER RATING: 1 watt average, 100 watts peak

(5 μsec pulse width; 0.5% duty cycle)

TEMPERATURE: -20° to +75°C operating

-55° to +85°C nonoperating

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

connectors which mate nondestructively with SMA male

connectors per MIL-STD-39012.

CONTROL CONNECTOR: 12 pin Viking TNP12-101

connector with 5' cable or 14 conductor 16" ribbon cable

with connector (shown below):

SWITCHING TIME: 20 msec (includes settling time)

CYCLING RATE: 4 Hz max per relay

CONTROL PULSE WIDTH: 20 msec (minimum)

SWITCHING CURRENT: 125 mA @ +24V per cell

300 mA @ +5V per cell

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)

EMC: Radiated interference is within the requirements of

MIL-STD-461 method RE02, VDE 0871 and CISPR

Publication II.

WEIGHT: 5 Cell 350 g (12 oz)

4 Cell 290 g (9.0 oz)

3 Cell 230 g (8.0 oz)

VOLTAGE/CONNECTOR OPTIONS:

Ribbon Cable Models Round (Viking)Cable Models

Frequency Attenuation Setting (dB)

Range (GHz) 5 1015 2025303540455055

dc-4 0.2 0.30.4 0.4 0.4 0.6 0.6 0.7 0.7 0.81.0

4-12.4 0.30.40.5 0.50.50.7 0.80.9 0.9 1.0 1.3

12.4-180.4 0.4 0.5 0.5 0.5 0.81.0 1.1 1.1 1.2 1.6

18-26.5 0.5 0.5 0.6 0.6 0.6 0.9 1.2 1.4 1.4 1.5 2.0

Model 152-55:

Frequency Attenuation Setting (dB)

Range (GHz) 1 2 3456 7891011121314 15

dc-4 0.2 0.2 0.30.30.30.30.4 0.4 0.4 0.4 0.5 0.5 0.5 0.5 0.5

4-12.4 0.30.30.4 0.4 0.5 0.5 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.7

12.4-180.5 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.80.80.80.80.80.8

18-26.5 0.5 0.6 0.7 0.80.9 0.9 0.9 1.0 1.1 1.1 1.1 1.1 1.1 1.1 1.1

Model 150/151/152-11 & 150/151/152-15:

Frequency Attenuation Setting (dB)

Range (GHz) 5 10 15 20 25 3035404550556065 70 75

dc-4 0.2 0.2 0.4 0.4 0.5 0.5 0.7 0.7 0.9 0.9 1.1 1.1 1.2 1.2 1.4

4-12.4 0.30.30.6 0.6 0.9 0.9 1.2 1.2 1.5 1.5 1.81.82.1 2.1 2.1

12.4-180.4 0.4 0.80.81.2 1.2 1.6 1.6 2.0 2.0 2.4 2.4 2.82.82.8

Model 150/151-75:

Frequency Attenuation Setting (dB)

Range (GHz) 10 20 30 405060 708090

dc-4 0.30.50.6 0.70.81.0 1.1 1.1 1.2

4-12.4 0.4 0.5 0.7 0.9 1.0 1.31.5 1.6 1.7

12.4-180.5 0.6 0.81.1 1.2 1.4 1.7 1.82.1

18-26.5 0.5 0.6 0.9 1.4 1.5 1.82.32.4 2.8

Model 152-70 & 152-90:

Frequency Attenuation Setting (dB)

Range (GHz) 10 20 30 405060 708090100110

dc-4 0.2 0.30.5 0.7 0.9 1.0 1.2 1.4 1.6 1.7 1.9

4-12.4 0.4 0.7 0.9 1.2 1.5 1.82.1 2.4 2.7 3.0 3.0

12.4-180.4 0.81.2 1.6 2.0 2.4 2.83.2 3.6 4.0 4.0

18-26.5 0.6 0.7 0.9 1.5 1.6 2.2 2.9 --- --- --- ---

Model 150/151-70, 150/151-110, 152A-70:

Frequency Attenuation Setting (dB)

Range (GHz) 123456 7891011121314 15 16

dc-4 0.2 0.2 0.30.30.30.30.4 0.4 0.5 0.4 0.5 0.5 0.5 0.5 0.5 0.5

4-12.4 0.30.30.4 0.4 0.5 0.5 0.6 0.6 0.7 0.6 0.7 0.7 0.7 0.7 0.7 0.7

12.4-180.5 0.5 0.6 0.6 0.6 0.6 0.7 0.7 0.80.80.80.80.80.80.8

Model 150/151-31:

Frequency Attenuation Setting (dB)

Rang (GHz) 17 1819 20 21 22 2324 25 26 27 2829 3031

dc-4 0.5 0.6 0.6 0.6 0.6 0.6 0.6 0.6 0.7 0.7 0.7 0.7 0.7 0.80.8

4-12.4 0.80.80.9 0.9 0.9 0.9 0.9 0.9 1.1 1.0 1.0 1.0 1.0 1.1 1.1

12.4-180.9 0.9 1.0 1.0 1.0 1.0 1.1 1.1 1.2 1.2 1.2 1.2 1.2 1.31.3

0.8

5305 Spectrum Drive, Frederick, MD 21703-7362 TEL: 301-846-9222, 800-638-2048 Fax: 301-846-9116

web: www.aeroflex-weinschel.com email: weinschel-sales@aeroflex.com

114

Revision Date: 11/28/07

Programmable Attenuators

MAXIMUM SWR (50 ΩCharacteristic Impedance):

Frequency (GHz)

APPLICABLE MODELS dc-4 4-18 18-26.5

151-11, 151-15, 151-31, 1.50 - - - - - -

151-75, 151-110

150-11, 150-15, 150-31, 1.50 1.90 - - -

150-75, 150-110

151-70 (3 cell) 1.35 - - - - - -

150-70 (3 cell) 1.35 1.70 - - -

152A-70 (3 cell) 1.40 1.70 1.80

152-55, 152-70, 152-90 1.40 1.60 1.90

ATTENUATION ACCURACY (+dB with respect to 0 dB reference):

MAXIMUM INSERTION LOSS (dB):

Frequency (GHz)

APPLICABLE MODELS dc-4 4-18 18-26.5

151-11, 151-15, 151-75, 151-110 0.90 - - - - - -

150-11, 150-15, 150-75, 150-110 0.90 2.20 - - -

151-31 (5 cell) 1.10 - - - - - -

150-31 (5 cell) 1.10 2.60* - - -

151-70 (3 cell) 0.70 - - - - - -

150-70 (3 cell) 0.70 1.60 - - -

152A-70 (3 cell) 0.90 2.00 2.98

152-55, 152-70, 152-90 0.90 2.00 2.98

*4-12.4 is 1.80, 12.4-18 is 2.60

115

5305 Spectrum Drive, Frederick, MD 21703-7362 TEL: 301-846-9222, 800-638-2048 Fax: 301-846-9116

web: www.aeroflex-weinschel.com email: weinschel-sales@aeroflex.com Revision Date: 11/28/07

Programmable Attenuators

PHYSICAL DIMENSIONS:

Models 150, 151, & 152:

DIM A B C

3 cell 82.3 (3.28) 76.2 (3.0) 104.6 (4.12)

4 cell 110.7 (4.36) 103.7 (4.08) 133.6 (5.25)

5 cell 136.1 (5.36) 129.1 (5.08) 159.5 (6.28)

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.

5305 Spectrum Drive, Frederick, MD 21703-7362 TEL: 301-846-9222, 800-638-2048 Fax: 301-846-9116

web: www.aeroflex-weinschel.com email: weinschel-sales@aeroflex.com

116

Revision Date: 11/28/07

Programmable Attenuators

Frequency Range/ NO. Attenuator Range/Step Size

Voltage/Connector Cells 11/1 dB 15/1 dB 55/5 dB 31/1 dB 70/10 dB 75/5 dB 90/10 dB 110/10 dB

dc-4 GHz/+24 V/ 4 151-11 NA N/A 151-75 N/A 151-110

Viking Connector 3 N/A

5 151-31

dc-18 GHz/+24 V/ 4 150-11 150-15 N/A 150-75 N/A 150-110

Viking Connector 3 150-70

5 150-31

dc-26.5 GHz/+24 V/ 4 N/A N/A 152-55 N/A N/A 152-90 N/A

Viking Connector 3

dc-4 GHz/+24 V/ 4 151-11-1 NA N/A 151-75-1 N/A 151-110-1

Ribbon Cable 3 N/A

5 151-31-1

dc-18 GHz/+24 V/ 4 150-11-1 150-15-1 N/A N/A N/A 150-110-1

Ribbon Cable 3 150-70-1

5 150-31-1

dc-26.5 GHz/+24 V/ 4 N/A N/A 152-55-1 N/A N/A N/A 152-90-1 N/A

Ribbon Cable 3

dc-4 GHz/+5 V/ 4 151-11-2 151-15-2 N/A 151-75-2 N/A 151-110-2

Viking Connector 3 N/A

5 151-31-2

dc-18 GHz/+5 V/ 4 150-11-2 150-15-2 N/A 150-75-2 N/A 150-110-2

Viking Connector 3 150-70-2

5 150-31-2

dc-26.5 GHz/+5 V/ 4 N/A N/A 152-55-2 N/A N/A 152-90-2 N/A

Viking Connector 3 N/A

dc-4 GHz/+5 V/ 4 151-11-3 N/A N/A N/A N/A N/A

Ribbon Cable 3 N/A

5 151-31-3

dc-18 GHz/+5 V/ 4 150-11-3 150-15-3 N/A 150-75-3 N/A 150-110-3

Ribbon Cable 3 150-70-3

5 150-31-3

dc-26.5 GHz/+5 V/ 4 N/A N/A 152-55-3 N/A N/A 152-90-3 N/A

Ribbon Cable 3 N/A

N/A = Not Available

150 Series Ordering Guide...

OPTIONAL TEST Data: Test Data is available at an addi-

tional cost for all programmable step attenuators models.

Standard test date is sweep measurements which magitude

and VSWR for each primary cell'.

MODELS WITH BUILT-IN TTL/CMOS INTERFACE\

DRIVER CIRCUIT: Aeroflex / Weinschel offers versions of

the 150 series with built-in TTL/CMOS interfaces. This gen-

eration of intelligent attenuators will greatly simplify as well

as provide an economical solution to 150 series driver prob-

lems. Refer to Model 150T, 151T, and 152T data sheet for

more information.

ACCESSORIES