HMC614LP4 / 614LP4E
v06.1109
RMS & PEAK TO AVERAGE
POWER DETECTOR 0.1 - 3.9 GHz
Typical Applications
The HMC614LP4(E) is ideal for:
Features
IPWR Output: Instantaneous Power,
Crest Factor Measurement
• 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
RF Signal Wave shape & Crest Factor Independent
Operates with Single-Ended or Differential Input
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
• Transmitter Power Control
11
Power-Down Mode
24 Lead 4x4mm QFN Package: 9 mmꢀ
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 signal.
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, requiring
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
instantaneous or peak input power level normalized
to the average input power level (peak to average
power ratio) via the IPWR output. The capability of
simultaneously 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 = +25 °C, Vcc = 5V, CINT = 0.1 μF [2]
Parameter
Typ.
Typ.
Typ.
Typ.
Typ.
Typ.
Typ.
Typ.
Units
Differential Input Configuration
Input Frequency
100
70
900
71
1900
70
2200
69
2700
62
3000
62
3500
53
3900
45
MHz
dB
Dynamic Range ( 1 dB linearity Error) [2]
Differential Input Configuration Logarithmic Slope
Logarithmic Slope
37.5
-69.8
13
37.5
-69.4
15
37.6
-68.8
>15
38.1
-67.4
>15
39.6
-63.6
12
41.0
-60.8
14
44.5
-54.8
10
50.2
-49.2
5
mV/dB
dBm
Logarithmic Intercept
Max. input Power at 1 dB Error
Min. input Power at 1 dB Error
dBm
-57
-56
-55
-54
-50
-48
-43
-40
dBm
[1] For more information regarding controller mode operation, please contact your Hittite sales representative or email sales@hittite.com
[2] Differential input drive via 1:1 balun transformer, VTGT = 2V unless otherwise noted.
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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