Datasheet > HMC542LP4_09

HMC542LP4_09

更新时间： 2022-12-19 05:32:10

品牌	Logo	应用领域
HITTITE		衰减器
页数	文件大小	规格书
8页	316K
描述
0.5 dB LSB GaAs MMIC 6-BIT DIGITAL SERIAL CONTROL ATTENUATOR, DC - 3 GHz

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HMC542LP4_09 数据手册

HMC542LP4 / 542LP4E

v03.0809

0.5 dB LSB GaAs MMIC 6-BIT DIGITAL

SERIAL CONTROL ATTENUATOR, DC - 3 GHz

Typical Applications

Features

The HMC542LP4(E) is ideal for:

• Cellular/PCS/3G Infrastructure

• ISM, MMDS, WLAN, WiMAX, & WiBro

• Microwave Radio & VSAT

0.5 dB LSB Steps to 31.5 dB

TTL/CMOS Compatible Serial Data Interface

SPI Compatible Serial Output

0.25 dB Typical Step Error

Single +5V Supply

• Test Equipment and Sensors

24 Lead 4x4mm QFN Package: 16mmꢀ

Functional Diagram

General Description

The HMC542LP4(E) is a broadband 6-bit GaAs IC

digital attenuator with a CMOS compatible serial

to parallel driver in low cost leadless surface mount

package. This serial control digital attenuator incorp

rates off chip AC ground capacitors for near DC opera-

tion, making it suitable for a wide variety of RF and IF

applications. Covering DC to 3 GHz, the insertion loss

is 1.5 dB and the attenuator bit values are 0.5 (LSB),

1, 2, 4, 8, and 16 dB for a total attenuation of 31.5 dB.

Attenuation accuracy is excellent at 0.25 dB typi-

cal step error with an IIP3 of +45 dBm. Six bit serial

control words are used to select each attenuation

state. A single Vdd bias of +5V is required.

Electrical Speciﬁcations, T_A= +25° C, with Vcc = +5V

Parameter

Frequency (GHz)

Min.

Typ.

Max.

Units

DC - 1.5 GHz

1.5 - 3.0 GHz

1.2

1.5

1.8

Insertion Loss

Attenuation Range

DC - 3 GHz

31.5

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

Attenuation Accuracy: (Referenced to Insertion Loss)

All Attenuation States

0.5 - 3.5 dB States

4.0 - 31.5 dB States

All Attenuation States

DC - 1.0 GHz

1.0 - 2.2 GHz

2.2 - 3.0 GHz

(0.20 + 3% of Atten. Setting) Max.

(0.25 + 3% of Atten. Setting) Max.

(0.15 + 4% of Atten. Setting) Max.

(0.30 + 3% of Atten. Setting) Max.

Input Power for 0.1 dB Compression

0.1 - 3.0 GHz

dBm

Input Third Order Intercept Point

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

0.1 - 1.5 GHz

1.5 - 3.0 GHz

dBm

Switching Characteristics

DC - 3 GHz

tRISE, tFALL (10/90% RF)

800

900

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

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