madr-007098-0001tr M/A-COM Technology Solutions, Inc., madr-007098-0001tr Datasheet

madr-007098-0001tr

Manufacturer Part Number

madr-007098-0001tr

Description

Linear Driver Diode Attenuators

Manufacturer

M/A-COM Technology Solutions, Inc.

Datasheet

1.MADR-007098-0001TR.pdf (4 pages)

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Features

• Linearizes PIN Diode Attenuators Over a Wide

• Output Currents up to 12 mA

• Operates with a Single Supply Voltage of +3V to

• Low Quiescent Currents

• Single Control Voltage

• Test Boards are Available

• Tape and Reel Packaging Available

• Lead-Free SOW-16 Package

• 100% Matte Tin Plating over Copper

• Halogen-Free “Green” Mold Compound

• 260°C Reflow Compatible

• RoHS* Compliant Version of DR65-0002

Description

M/A-COM's MADR-007098-000100 is a break point

free driver that produces a logarithmic output current

suitable for linearizing PIN diode based shunt

attenuators. This driver, in conjunction with customer

defined external components, produces a linear

transfer function (dB/V) between the input control

voltage of the driver and the attenuation output of

the PIN attenuator. The MADR-007098-000100 has

been optimized for linearizing M/A-COM’s MAAV-

007089-000100

attenuators, but will function well with most types of

cathode grounded, PIN attenuators. The driver is

packaged in a SOW-16 package for commercial

SMT applications. A typical schematic for a 30 dB,

7.5 dB/V linear attenuator is shown in Figure 1.

ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions

is considering for development. Performance is based on target specifications, simulated results,

and/or prototype measurements. Commitment to develop is not guaranteed.

PRELIMINARY: Data Sheets contain information regarding a product M/A-COM Technology

Solutions has under development. Performance is based on engineering tests. Specifications are

typical. Mechanical outline has been fixed. Engineering samples and/or test data may be available.

Commitment to produce in volume is not guaranteed.

Linear Driver for

PIN Diode Attenuators

Ordering Information

MADR-007098-000100

Note: Reference Application Note M513 for reel size

information.

* Restrictions on Hazardous Substances, European Union Directive 2002/95/EC.

MAAV-007089-DR01TB

MAAV-007090-DR01TB

MADR-007098-0001TR

MADR-007098-000100

Attenuation Range

+12V

Part Number

Test Board with Circuit per Figure 1

MAAV-007090-000100

(MAAV-007089-000100,

(MAAV-007090-000100,

GSM Attenuator)

PCS Attenuator)

Bulk Packaging

1000 piece reel

Package

M/A-COM Technology Solutions Inc. and its affiliates reserve the right to make

changes to the product(s) or information contained herein without notice.

Pin Configuration

Circuit Description:

(Reference Figures 1 and 2)

The input divider, R1 and the sum of R2 and R3,

sets the overall transfer function of the circuit. To

increase the transfer function, decrease the Control

Voltage and the value of R1. Varying the value of

R4 will optimize the linearity of the circuit. One can

achieve a very linear transfer function (less than

± 1 dB/V) by driving the attenuator over a smaller

portion of its dynamic range. In the case of the

MAAV-007089-000100 and MAAV-007090-000100

attenuators, this would be limited to a dynamic

range of 28 and 25 dB, respectively. Temperature

compensation is a function temperature coefficient

of the thermistor, R3, and the ratio of R2 to R3, and

can only be optimized once the transfer function

and linearity component values have been

established.

• North America Tel: 800.366.2266 • Europe Tel: +353.21.244.6400

• India Tel: +91.80.4155721

Pin No.

Visit www.macomtech.com for additional data sheets and product information.

Function

INPUT +

GND

REF

N/C

• China Tel: +86.21.2407.1588

Pin No.

Function

OUTPUT

+ V

N/C

Rev. V2

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madr-007098-0001tr Summary of contents

Page 1

... SOW-16 package for commercial SMT applications. A typical schematic for a 30 dB, 7.5 dB/V linear attenuator is shown in Figure 1. Ordering Information Part Number MADR-007098-000100 Bulk Packaging MADR-007098-0001TR 1000 piece reel MAAV-007089-DR01TB Test Board with Circuit per Figure 1 (MAAV-007089-000100, GSM Attenuator) MAAV-007090-DR01TB Test Board with Circuit per Figure 1 ...

Page 2

... Figure 1. Linear Attenuator Schematic R1 Vcontrol (0 to 4V) 39K R2 R3 (PTCT) NOTES: a. Transfer function is 7.5 dB/V b. Vcontrol 4.0V c. +Vcc is 5.0V ± positive temperature coefficient thermistor. e. Attenuator is MAAV-007089-000100 or MAAV-007090-000100 Figure 2. Typical Attenuation Error MADR-007098-000100 Driver with MAAV-007090-000100 VVA 2.0 1.5 1.0 0.5 0.0 -0.5 -1.0 -1.5 -2 Frequency: 1 960 M Hz Vco nt 4.0V 2 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions is considering for development ...

Page 3

... MADR-007098-000100 Linear Driver for PIN Diode Attenuators Electrical Specifications: T Parameter Output Drive Current +V Supply Range CC +V Supply Tolerance CC +V Quiescent Current CC Linearity Transfer Function Settling Time Absolute Maximum Ratings Parameter Absolute Maximum +V CC Input + REF Output Current Operating Temperature Storage Temperature ...

Page 4

... MADR-007098-000100 Linear Driver for PIN Diode Attenuators † Lead-Free, SOW-16 † Reference Application Note M538 for lead-free solder reflow recommendations. 4 ADVANCED: Data Sheets contain information regarding a product M/A-COM Technology Solutions is considering for development. Performance is based on target specifications, simulated results, and/or prototype measurements. Commitment to develop is not guaranteed. ...

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