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HMC1120LP4E fiches techniques PDF

Hittite - RMS POWER DETECTOR & ENVELOPE TRACKER

Numéro de référence HMC1120LP4E
Description RMS POWER DETECTOR & ENVELOPE TRACKER
Fabricant Hittite 
Logo Hittite 





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HMC1120LP4E fiche technique
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Typical Applications
The HMC1120LP4E is ideal for:
Log –> Root-Mean-Square (RMS) Conversion
Tx/Rx Signal Strength Indication (TSSI/RSSI)
RF Power Amplifier Efficiency Control
Receiver Automatic Gain Control
Transmitter Power Control
Envelope Tracking
PA Linearization
Functional Diagram
HMC1120LP4E
RMS POWER DETECTOR &
ENVELOPE TRACKER, DC - 3.9 GHz
Features
Broadband Single-Ended RF Input
RMS Detector with ±1 dB Detection
Accuracy up to 3.9 GHz
Input Dynamic Range: -60 dBm to +8 dBm
±1 dB Envelope Detection Accuracy over
30 dB Input Range
Envelope Detection Bandwidth > 150MHz
Digitally Programmable Integration Bandwidth
Power-Down Mode
24 Lead 4x4mm SMT Package: 16mm²
Envelope Tracking Power-Down Mode
General Description
The HMC1120LP4E is an RMS power detector with
an integrated high bandwidth envelope detector. The
RMS output is a temperature compensated, monoton-
ic, linear-in-dB representation of real RF signal power,
measured over an input sensing range of 70 dB. The
envelope detector provides an accurate voltage output
which is linearly proportional to the amplitude enve-
lope of the RF input signal for modulation bandwidths
up to 150 MHz. The high bandwidth envelope detec-
tion of the HMC1120LP4E makes it ideal for detecting
broadband and high crest factor RF signals commonly
used in GSM, WCDMA, and LTE systems. Addition-
ally, the instantaneous envelope output can be used to
create fast, excessive RF power protection, PA linear-
ization, and efficiency enhancing envelope-tracking
PA implementations.
The HMC1120LP4E’s RMS detector integration band-
width is digitally programmable via input pins SCI1-4
over a range of more than 4 decades. This allows the
user to dynamically set the operation bandwidth and
also permits the detection of different types of modula-
tions on the same platform.
The HMC1120LP4E features an internal op-amp at the
RMS output stage, which accommodates slope and
intercept adjustments and supports a wide range of
applications.
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
1
Phone: 978-250-3343 Fax: 978-250-3373 Order On-line at www.hittite.com
Application Support: Phone: 978-250-3343 or [email protected]

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