For price, delivery and to place orders: Hittite Microwave Corporation, 20 Alpha Road, Chelmsford, MA 01824

Phone: 978-250-3343

Fax: 978-250-3373

Order On-line at www.hittite.com

Application Support: Phone: 978-250-3343 or apps@hittite.com

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HMC909LP4E

General Description

Features

Functional Diagram

the HMc909LP4e Power Detector is designed for

rF power measurement, and control applications for

frequencies up to 5.8 GHz. the detector provides

an accurate rMs representation of any broadband,

single-ended rF/IF input signal. the output is a tem-

perature compensated monotonic, representation of

real signal power, measured with an input sensing

range of 40 dB.

the HMc909LP4e is ideally suited to those wide

bandwidth, wide dynamic range applications, requir-

ing repeatable measurement of real signal power,

especially where rF/IF wave shape and/or crest factor

change with time.

the integration bandwidth of the HMc909LP4e is

digitally programmable with the use of input pins

scI1-4 with a range of more than 4 decade. this

allows the user to dynamically set the operation

bandwidth providing the capability of handling differ-

ent types of modulations on the same platform.

HMc909LP4e features an internal op-amp at output

stage, which provides for slope / intercept adjustments

and enables controller application.

Broadband single-ended rF Input

±1 dB Detection Accuracy to 5.8 GHz

Input Dynamic range: -51 dBm to -11 dBm

rF signal wave shape & crest Factor Independent

Digitally Programmable Integration Bandwidth

+5V operation from -40°c to +85°c

excellent temperature stability

Power-Down Mode

24 Lead 4x4mm sMt Package: 16mm²

Typical Applications

the HMc909LP4e is ideal for:

• Log –> Root-Mean-Square (RMS) Conversion

• Received Signal Strength Indication (RSSI)

• Transmitter Signal Strength Indication (TSSI)

• RF Power Amplifier Efficiency Control

• Receiver Automatic Gain Control

• Transmitter Power Control

RMS POWER DETECTOR

SINGLE-ENDED, DC - 5.8 GHz

v02.0511

Electrical Specifications, TA = +25 °C, Vcc = 5V

Parameter

typ.

typ.

typ.

typ.

typ.

typ.

typ.

typ.

Units

Dynamic Range (±1dB Error) [1]

Input Frequency

100

900

1900

2200

2700

3500

3900

5800

MHz

Single Ended Input Configuration

40

40

40

39

38

37

36

24

dB

Deviation vs Temperature: (Over full temperature range -40 °C to 85 °C).

Deviation is measured from reference, which is the same wcDMA input at 25 °c.

1

dB

[1] With WCDMA 4 Carrier (TMI1-64 DPCH)

Information furnished by Analog Devices is believed to be accurate and reliable. However, no

responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other

rights of third parties that may result from its use. Specifications subject to change without notice. No

license is granted by implication or otherwise under any patent or patent rights of Analog Devices.

Trademarks and registered trademarks are the property of their respective owners.

For price, delivery, and to place orders: Analog Devices, Inc.,

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106

Phone: 781-329-4700 • Order online at www.analog.com

Application Support: Phone: 1-800-ANALOG-D