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9

HMC467LP3

2 dB LSB GaAs MMIC 2-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 6.0 GHz

v00.0403

Functional Diagram

Typical Applications

The HMC467LP3 is ideal for:

• Cellular; UMTS/3G Infrastructure

• Fixed Wireless & WLL

• Microwave Radio & VSAT

• Test Equipment

Features

2 dB LSB Steps to 6 dB

High IP3: +50 dBm

+/- 0.2 dB Typical Bit Error

Single Control Line Per Bit

Single +5V Supply

3 mm x 3 mm x 1 mm SMT Package

General Description

The HMC467LP3 is a broadband 2-bit GaAs IC

digital attenuator in a low cost leadless surface

mount package. Covering DC to 6.0 GHz, the

insertion loss is less than 0.7 dB typical. The

attenuator bit values are 2 (LSB) and 4 dB for a

total attenuation of 6 dB. Attenuation accuracy

is excellent at ± 0.2 dB typical step error with

an IIP3 of +50 dBm. Two control voltage inputs,

toggled between 0 and +5V, are used to select

each attenuation state. A single Vdd bias of +5V

is required.

Parameter

Frequency

(GHz)

Min.

Typ.

Max.

Units

Insertion Loss

DC - 2.5 GHz

2.5 - 6.0 GHz

0.5

0.8

0.8

1.2

dB

dB

Attenuation Range

DC - 6.0 GHz

6

dB

Return Loss (RF1 & RF2, All Atten. States)

DC - 2.5 GHz

2.5 - 6.0 GHz

20

15

dB

dB

Attenuation Accuracy:

(Referenced to Insertion Loss)

2 dB State

4, 6 dB States

DC - 6.0 GHz

± 0.2 + 2% of Atten. Setting Max.

± 0.4 + 2% of Atten. Setting Max.

dB

dB

Input Power for 0.1 dB Compression

0.25 - 6.0 GHz

22

dBm

Input Third Order Intercept Point

(Two-Tone Input Power= 0 dBm Each Tone)

0.25 - 6.0 GHz

50

dBm

Switching Characteristics

tRISE, tFALL (10/90% RF)

tON, tOFF (50% CTL to 10/90% RF)

DC - 6.0 GHz

135

155

ns

ns

* Bypass capacitor connecting ACG1 & ACG2 to RF ground required per pin description herein.