19-3404; Rev 0; 9/04
KIT
ATION
EVALU
BLE
AVAILA
LF-to-2.5GHz Dual Logarithmic Detector/
Controller for Power, Gain, and VSWR Measurements
General Description
The MAX2016 dual logarithmic detector/controller is a
fully integrated system designed for measuring and
comparing power, gain/loss, and voltage standing-wave
ratio (VSWR) of two incoming RF signals. An internal
broadband impedance match on the two differential RF
input ports allows for the simultaneous monitoring of sig-
nals ranging from low frequency to 2.5GHz.
The MAX2016 uses a pair of logarithmic amplifiers to
detect and compare the power levels of two RF input
signals. The device internally subtracts one power level
from the other to provide a DC output voltage that is pro-
portional to the power difference (gain). The MAX2016
can also measure the return loss/VSWR of an RF signal
by monitoring the incident and reflected power levels
associated with any given load. A window detector is
easily implemented by using the on-chip comparators,
OR gate, and 2V reference. This combination of circuitry
provides an automatic indication of when the measured
gain is outside a programmable range. Alarm monitoring
can thus be implemented for detecting high-VSWR
states (such as open or shorted loads).
The MAX2016 operates from a single +2.7V to +5.25V*
power supply and is specified over the extended -40擄C
to +85擄C temperature range. The MAX2016 is available
in a space-saving, 5mm x 5mm, 28-pin thin QFN.
Features
鈾?/div>
Complete Gain and VSWR Detector/Controller
鈾?/div>
Dual-Channel RF Power Detector/Controller
鈾?/div>
Low-Frequency to 2.5GHz Frequency Range
鈾?/div>
Exceptional Accuracy Over Temperature
鈾?/div>
High 80dB Dynamic Range
鈾?/div>
2.7V to 5.25V Supply Voltage Range*
鈾?/div>
Internal 2V Reference
鈾?/div>
Scaling Stable Over Supply and Temperature
Variations
鈾?/div>
Controller Mode with Error Output
鈾?/div>
Available in 5mm x 5mm 28-Pin Thin QFN
Package
*See
Power-Supply Connection
section.
MAX2016
Ordering Information
PART
MAX2016ETI
MAX2016ETI-T
MAX2016ETI+D
TEMP RANGE
-40擄C to +85擄C
-40擄C to +85擄C
-40擄C to +85擄C
PIN-
PACKAGE
PKG
CODE
28 Thin QFN-EP*,
T2855-3
bulk
28 Thin QFN-EP*,
T2855-3
T/R
28 Thin QFN-EP*,
T2855-3
lead free, bulk
28 Thin QFN-EP*,
T2855-3
lead free, T/R
Applications
Return Loss/VSWR Measurements
Dual-Channel RF Power Measurements
Dual-Channel Precision AGC/RF Power Control
Log Ratio Function for RF Signals
Remote System Monitoring and Diagnostics
Cellular Base Station, Microwave Link, Radar,
and other Military Applications
MAX2016ETI+TD -40擄C to +85擄C
*EP
= Exposed pad.
+
= Lead free.
D
= Dry pack.
Pin Configuration
OUTB
23
OUTA
SETB
SETA
REF
28
FA1
V
CC
RFINA+
RFINA-
GND
COUTH
CSETH
1
2
3
4
5
6
7
8
COR
9
V
CC
10
SETD
11
OUTD
12
V
CC
13
FV2
14
FV1
27
26
25
24
22
21 FB1
20 V
CC
19 RFINB+
FB2
18 RFINB-
17 GND
16 COUTL
15 CSETL
FA2
RF/IF Power Amplifier (PA) Linearization
MAX2016
Typical Application Circuit appears at end of data sheet.
THIN QFN
________________________________________________________________
Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim鈥檚 website at www.maxim-ic.com.
MAX2016 PDF文件相關(guān)型號
MAX2016EVKIT,MAX2021,MAX2039ETP,MAX2039ETP+D,MAX2039ETP+TD,MAX2039ETP-T
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