MACOM AT-113TR, AT-113 Datasheet

(

A

3 Volt Voltage Variable Absorptive Attenuator
40 dB, 0.5 - 2.0 GHz

Features

• Single Positive Voltage Control 0 to +3 Volts

• 40 dB Attenuation Range at 0.9 GHz

• ± 2 dB Linearity from BSL

• Low DC Power Consumption

• Low Cost SOIC-8 Plastic Package

• Tape and Reel Packaging Available

Description

M/A-COM’s AT-113 is a GaAs MMIC voltage variable
absorptive attenuator in a low cost SOIC 8-lead surface mount
plastic package. The AT-113 is ideally suited for use where
linear attenuation fine tuning and very low power consumption
are required.

Typical applications include radio, cellular, GPS equipment and
automatic gain/level control circuits.

The AT-113 is fabricated with a monolithic GaAs MMIC using
a mature 1-micron process. The process features full chip
passivation for increased performance and reliability.

AT-113

1

SOIC-8

Oreintation

Mark

.0532/.0688

(1.35/1.75)

1. Dimensions are in inches/mm.

Ordering Information

AT-113 SOIC-8 Lead Plastic
AT-113TR Forward Tape and Reel

1. If specific reel size is required, consult factory for part number

PIN 8

PIN 1

.004

(0.10)

.050 (1.27)

.1890/.1968

(4.80/5.00)

-A-

BSC.

.1497/.1574
(3.80/4.00)

.010

.25)

.0040/.0098

-C-

.013/.020 (8

-B-

(.10/.25)

(.33/.51)

PL)

C

.2284/.2440

(5.80/6.20)

CHAMFER
(OPTIONAL

0°/80°

B M M S

.010(.25)

)

Part Number Package

assignment.

M M B

.016/.050

(0.40/1.27)

1

.0075/.0098

(.19/.25)

1

Electrical Specifications: TA = +25°C

====

Parameter Test Conditions Units Min. Typ. Max.

Insertion Loss 0.5 - 1.0 GHz dB 2.7 3.0

1.0 - 2.0 GHz dB 3.0 3.5
Attenuation 0.5 - 1.0 GHz dB 40

1.0 - 2.0 GHz dB 35
Insertion Loss Flatness (Peak-to-Peak) 0.5 - 1.0 GHz dB ±0.5 ±0.8

1.0 - 2.0 GHz dB ±1.2 ±1.5
VSWR 2:1

T

, T

rise

fall

Ton, T

off

Transients

10% to 90% RF, 90% to 10% RF
50% Control to 90% RF, Control to 10% RF

µS
µS

In-band mV 10

1. All measurements at 1 GHz in a 50Ω system unless otherwise specified. The RF ports must be blocked out side of the package from ground or
any other voltage.

Specifications subject to change without notice.

 North America: Tel. [phone], Fax [phone]
 Asia/Pacific: Tel.[phone], Fax [phone]
 Europe: Tel. [phone], Fax+ 44 (1 34 4) 30 0 020

Visit www.macom . com for ad di tional data sheets and pr o d uct i nf orm ation.

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3 Volt Voltage Variable Absorptive Attenuator, 40 dB, 0 .5 - 2.0 GHz

AT-113

Absolute Maximum Ratings

1

Parameter Absolute Maximum

Maximum Input Power +21 dBm
Supply Voltage V
Control Voltage V

CC

C

-1V, +8V

-1V, VCC +0.5V
Operating Temperature -40°C to +85°C
Storage Temperature -65°C to +150°C

1. Exceeding any one or a combination of these limits may cause

permanent damage.

Typical Performance Curves

Functional Schematic

GND RF GND Vc

8

1

GND

1. VCC = +3 VDC @ 50 µA max.
= 0 VDC to +3 VDC @ 50 µA max.

2. V

C

3. External DC blocking capacitors are required on all RF ports.

4. 39pF used for data measurements.

1, 2, 3

76

2

3

GND

RF

5

4

Vcc

Attenuation vs. Control Voltage @ +25°C

ATTENUATION (dB)

-10

-15

-20

-25

-30

-35

-40

-45

0

-5

0.9 GHz

CONTROL VOLTAGE (VOLTS)

2.4 GHz

Attenuation vs. Frequency @ 0V, +25°C

0

-5

-10

-15

-20

-25

-30

-35

ATTENUATION (dB)

-40

-45

0.4 0.9 1.4 2.0 2.5 3.0
FREQUENCY (GHz)

1.8 GHz

Insertion Loss vs. Frequency @ +25°C

0

-0.5

-1

-1.5

-2

LOSS (dB)

-2.5

-3

-3.5

00.40.81.21.622.42.8

0.4 0.9 1.4 2.0 2.5 3.0
FREQUENCY (GHz)

Attenuation vs. Temperature, Normalized to
+25°C, f = 900 MHz

3
2
1
0

-1

-2

ATTENUATION DELTA (dB)

-3

CONTROL VOLTAGE (VOLTS)

- 40°C

+ 85°C

00.40.81.21.622.42.8

Specifications subject to change without notice.

 North America: Tel. [phone], Fax [phone]
 Asia/Pacific: Tel.[phone], Fax [phone]
 Europe: Tel. [phone], Fax+ 44 (1 34 4) 30 0 020

Visit www.macom . com for ad di tional data sheets and pr o d uct i nf orm ation.

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