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ASB Inc.

 sales@asb.co.kr  Tel: +82-42-528-7225

September. 2013

AAT530B5

0.5 ~ 3.0 GHz LSB 1 dB, 5 Bit Digital Attenuator

Parameters

Test Conditions

Min

Typ

Max

Units

Insertion loss

0.5 to 1 GHz

1 to 2 GHz

2 to 3 GHz

1.6

2.0

2.5

1.9

2.4

3.1

dB

Attenuation range

31

dB

Attenuation accuracy

0.5 to 1 GHz

1 to 2 GHz

2 to 3 GHz

±(0.5 + 5% of attenuation setting)

±(0.2 + 3% of attenuation setting)

±(0.3 + 3% of attenuation setting)

dB

Return loss

10

13

dB

Switching characteristics:

Rise/fall time

On/off time

(10%/90% RF)

(50% Vctrl to RF)

600

660

ns

Input power for 0.1 dB compression

0.5 to 3 GHz

Vs = +3 V

22

dBm

41

42

dBm

Supply voltage

Vs

+2.8

+3.5

V

Control voltage

High

Low

+0.7

-0.2

Vs +0.2

+0.2

V

V

Current

20

100

A

A

 Positive voltage operation: 3 V

 LSB attenuation: 1 dB

 Attenuation range: 31 dB

 Bit error:

±0.3 dB Typical step error

 High IIP3: +42 dBm

 16 lead QFN Package (4mm x 4mm)

Applications

 3G & 4G LTE

 GSM, CDMA, TD-SCDMA

 WLAN, WiMAX

Block Diagram

Features

Overview

The AAT530B5 is a GaAs MMIC binary-weighted five bit positive control digital attenuator. The device operates from 0.5 to 3.0 GHz with a

control and supply voltage +3 V. The AAT530B5 has and LSB of 1 dB and total attenuation of 31 dB. An external supply voltage of 3 V is

required. The AAT530B5 is composed of six cascaded fixed attenuators. The state of attenuators is controlled by the logic level voltage.

The attenuator bit values are 1(LSB), 2, 4, 8, 16 dB for a total attenuation of 31dB. Attenuation accuracy is excellent at

±0.3 dB typical

step error with an IIP3 of 42 dBm.

Electrical Specifications