Digital Attenuator, 5 Bit, 15.5 dB,

500 - 2500 MHz

V 3.00

Features

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5 Bits, 0.5 dB Steps

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Excellent Accuracy

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Single Positive Control (+3 to +5V)

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Small Low Cost QSOP-16 (SSOP-16) Package

Description

The M/A-COM MAATSS0001 is a 0.5 dB step GaAs

MMIC digital attenuator with 15.5 dB dynamic range in a

low cost QSOP-16 (SSOP-16) package. It requires external

DC blocking capacitors on the RF ports, positive supply

voltage and five individual bit control voltages. It is par-

ticularly suited where high attenuation accuracy, low inser-

tion loss and low intermodulation products are required.

Typical applications include base stations, wireless data,

and wireless local loop gain level control circuits.

The MAATSS0001 is fabricated using M/A-COM’s GaAs

1.0 micron process.

The process features full chip

passivation for increased performance and reliability.

Ω

Parameter

Conditions

Frequency

Units

Min.

Typ.

Max.

Insertion Loss

—

0.5 - 1.8 GHz

1.8 - 2.2 GHz

2.2 - 2.5 GHz

dB

dB

dB

—

—

—

1.9

2.2

2.5

2.2

2.5

2.8

VSWR

Any State

0.5 - 2.5 GHz

Ratio

—

1.6:1

1.9:1

Accuracy

Any State

0.5 - 0.8 GHz

0.8 - 1.8 GHz

1.8 - 2.2 GHz

2.2 - 2.5 GHz

± (0.3 + 4% atten setting)

± (0.3 + 3% atten setting)

± (0.3 + 6% atten setting)

± (0.3 + 8% atten setting)

Step Change

Any State

0.5 - 1.8 GHz

1.8 - 2.2 GHz

2.2 - 2.5 GHz

dB

dB

dB

0.3

0.2

0.1

—

—

—

0.8

0.9

1.0

Attenuation Range

—

0.5 - 2.5 GHz

dB

14.0

15.0

—

1 dB Compression

Input Power

+3 V

+5 V

0.5 - 2.5 GHz

0.5 - 2.5 GHz

dBm

dBm

19

22

25

30

—

—

IP3

+3 V Two tones input power up to +5 dBm

+5 V Two tones input power up to +5 dBm

0.5 - 2.5 GHz

0.5 - 2.5 GHz

dBm

dBm

34

43

36

46

—

—

Trise, Tfall

10/90% or 90/10% RF

—

µS

—

2.14

—

Ton, Toff

50% CNTL to 90/10% RF

—

µS

—

2.14

—

Transients

In Band

—

mV

—

62

—

Control Voltages

+3 V

+5 V

—

—

µA

µA

—

—

—

—

40

40

Functional Schematic

0.5 dB

8 dB

1 dB

VC5

VC4

VC3

VC2

VC1

Absolute Maximum Ratings

1

1. Operation of this device above any one of these

parameters may cause permanent damage.

Parameter

Absolute Maximum

Max Input Power

0.5 - 2.5 GHz

+34 dBm

Operating Temperature

-40°C to +85°C

Storage Temperature

-65°C to +150°C