Datasheet > 540LP3E

540LP3E

更新时间： 2024-11-04 07:56:15

品牌	Logo	应用领域
HITTITE		衰减器
页数	文件大小	规格书
6页	218K
描述
1 dB LSB GaAs MMIC 4-BIT DIGITAL POSITIVE CONTROL ATTENUATOR, DC - 5.5 GHz

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540LP3E 数据手册

HMC540LP3 / 540LP3E

v00.0605

1 dB LSB GaAs MMIC 4-BIT DIGITAL

POSITIVE CONTROL ATTENUATOR, DC - 5.5 GHz

Typical Applications

Features

The HMC540LP3 / HMC540LP3E is ideal for both RF

and IF applications:

1 dB LSB Steps to 15 dB

0.2 dB Typical Step Error

Low Insertion Loss: 1 dB

High IP3: +50 dBm

• Cellular Infrastructure

• ISM, MMDS, WLAN, WiMAX, WiBro

• Microwave Radio & VSAT

Single Control Line Per Bit

TTL/CMOS Compatible Control

Single +5V Supply

• Test Equipment and Sensors

Functional Diagram

3x3 mm SMT Package

General Discription

The HMC540LP3 & HMC540LP3E are broadband

4-bit GaAs IC digital attenuators in low cost leadless

surface mount packages. This single positive control

line per bit digital attenuator utilizes off chip AC

ground capacitors for near DC operation, making it

suitable for a wide variety of RF and IF applications.

Covering DC to 5.5 GHz, the insertion loss is less

than 1 dB typical. The attenuator bit values are

1 (LSB), 2, 4 and 8 dB for a total attenuation of 15 dB.

Attenuation accuracy is excellent at 0.2 dB typical

step error. The attenuator also features a IIP3 of +50

dBm. Four TTL/CMOS control inputs are used to

select each attenuation state. A single Vdd bias of

+5V is required.

Electrical Speciﬁcations,

T_A= +25° C, With Vdd = +5V & Vctl = 0/+5V (Unless Otherwise Noted)

Parameter

Frequency (GHz)

Min.

Typ.

Max.

Units

DC - 2.0 GHz

2.0 - 3.0 GHz

3.0 - 4.0 GHz

4.0 -5.5 GHz

0.8

1.0

1.3

2.2

1.1

1.3

1.6

2.6

Insertion Loss

Attenuation Range

DC - 5.5 GHz

DC - 3.5 GHz

3.5 - 5.5 GHz

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

DC - 1.0 GHz

1.0 - 4.0 GHz

4.0 - 5.0 GHz

5.0 - 5.5 GHz

(0.2 + 2% of Atten. Setting) Max.

(0.2 + 3% of Atten. Setting) Max.

(0.3 + 5% of Atten. Setting) Max.

(0.4 + 8% of Atten. Setting) Max.

Attenuation Accuracy:

(Referenced to Insertion Loss)

All States

Input Power for 0.1 dB Compression

0.1 - 5.5 GHz

dBm

Input Third Order Intercept Point

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

REF - 4 dB States

5 - 15 dB States

dBm

Switching Characteristics

DC -5.5 GHz

tRISE, tFALL (10/90% RF)

100

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

For price, delivery, and to place orders, please contact Hittite Microwave Corporation:

20 Alpha Road, Chelmsford, MA 01824 Phone: 978-250-3343 Fax: 978-250-3373

Order On-line at www.hittite.com

5 - 170

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