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Hittite Microwave Corporation - RMS And Peak To Average Power Detector

Numéro de référence HMC614LP4
Description RMS And Peak To Average Power Detector
Fabricant Hittite Microwave Corporation 
Logo Hittite Microwave Corporation 





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HMC614LP4 / 614LP4E
v03.0109
RMS & Peak to Average
Power Detector 0.1 - 3.9 GHz
12
12 - 76
Typical Applications
The HMC614LP4(E) 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
Features
IPWR Output: Instantaneous Power,
Crest Factor Measurement
RF Signal Wave shape & Crest Factor Independent
Supports Controller Mode [1]
±1 dB Detection Accuracy to 3.9 GHz
Input Dynamic Range: -57 dBm to +15 dBm
+5V Operation from -40°C to +85°C
Excellent Temperature Stability
Power-Down Mode
24 Lead 4x4mm QFN Package: 9 mm2
Functional Diagram
General Description
The HMC614LP4E RMS Power Detector is designed
for RF power measurement, and control applications
for frequencies up to 3.9 GHz. The detector provides
a “true RMS” representation of any RF/IF input sig-
nal. The output is a temperature compensated, mono-
tonic representation of real signal power, measured
with a differential input sensing range of 71 dB.
The HMC614LP4E 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 HMC614LP4E provides an indication of the in-
stantaneous or peak input power level normalized to
the average input power level (peak to average power
ratio) via the IPWR output. The capability of simultane-
ously measuring the instantaneous power (envelope
power) and the average true RMS power provides
crucial information about the RF input signal: Peak
Power, Average Power, Peak to average power and
RF Wave-Shape.
Electrical Specifications, TA = +25C, Vcc= 5V, CINT = 0.1 μF [2]
Parameter
Typ. Typ. Typ.
Input Frequency
100 900 1900
Dynamic Range (± 1 dB linearity Error) [1]
70 71 70
Differential Input Configuration Logarithmic Slope
Logarithmic Slope
37.5 37.5 37.6
Logarithmic Intercept
-69.8 -69.4 -68.8
Max. input Power at ±1 dB Error
13 15 >15
Min. input Power at ±1 dB Error
-57 -56 -55
Deviation vs. Temperature:
Deviation is measured from reference, which is the same CW Input @ 25° C
Differential Input Interface with 1:1 Balun Transformer (Over Full Input Frequency Range)
Typ.
2200
69
38.1
-67.4
>15
-54
Typ.
2700
62
39.6
-63.6
12
-50
Typ.
3000
62
Typ.
3500
53
41.0
-60.8
14
-48
44.5
-54.8
10
-43
±0.5
Typ.
3900
45
50.2
-49.2
5
-40
Units
MHz
dB
mV/dB
dBm
dBm
dBm
dB
[1] For more information regarding controller mode operation, please contact your Hittite sales representative or email [email protected]
[2] Differential input drive via 1:1 balun transformer, VTGT = 2V unless otherwise noted.
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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