Analog Devices LTC5597 Manual

DESCRIPTION
Demonstration circuit DC3129A-KIT is a Linduino
ation kit for RMS Power Detector
for quick evaluation of RMS RF power measurement using
the Arduino/Linduino compatible platform and software
download available. When connected to PC with USB
cable, accurate power level can be monitored using the
graphic user interface.
The LTC5597 is a wide dynamic range linear-in-dB RMS
RF Power Detector, operational from 100MHz to 70GHz.
The Linduino (DC2026C) platform provides 10-bit ADC at
4.9mV/LSB resolution with 5V default reference voltage.
Input dynamic range with 1dB accuracy is up to 35dB
depending on frequency. The detector output slope is
normally 6 LSB/dB. The DC3129A-KIT is optimized for
wide operational frequency signals up to 70GHz using
the 1.85mm edge mount connector. Input impedance is
internally matched to 50Ω. It is suitable for RMS mea-
surements of high crest factor waveforms up to 12dB
peak-to-average. No external coupling capacitor is neces-
sary if DC voltage at RF
IN
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TEST SETUP
LTC5597 Linduino Shield 100MHz to
®
LTC 5597. It is set up
®
pin is kept below 1.0V. On board
Figure 1. Test Setup for RF Performance Measurements
DEMO MANUAL DC3129A-KIT
70 GHz RMS Power Detector
evalu- 3.3V regulator provides power to the shield by jumper
JP1. Contact applications support for more information.
Design files for this circuit board are available.
ABSOLUTE MAXIMUM INPUT RATINGS
(Note 1)
Supply Voltage(V
DC Voltage at RF
DC Voltage at FLTR:
DC Voltage at EN:
RF Input Power-Average:
IN
T
JMAX
Case Operating Temperature Range
Storage Temperature Range
Note 1: Voltage on all pins must not exceed V
or be less than –0.3V.
CAUTION: This part is sensitive to electrostatic discharge
(ESD). Observe proper ESD precautions when handling
the LTC5597.
):
CC
:
IN
–40°C to 105°C
–65°C to 150°C
+3.8V
–0.3V to 1.0V
–0.3V to 0.4V
–0.3V to 3.8V
+15dBm
150°C
+ 0.3V
CC
Rev. 0
1