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dc2158afa
DEMO MANUAL DC2158A
Description Absolute MAxiMuM input
rAtings
LTC5596
100MHz to 40GHz RMS Power Detector
Demonstration circuit 2158A hosts a high accuracy RMS
Power Detector featuring the LT C
®
5596 IC. This device is
a wide dynamic range RMS RF Power Detector operational
from 100MHz to 40GHz. The input dynamic range with
1dB accuracy is up to 35dB depending on frequency. The
detector output voltage slope is normally 29mV/dB. The
DC2158A Demo Circuit is optimized for wide operational
frequency range up to 40GHz with 2.9mm SMK edge
mount connector. Input impedance to LTC5596 is internally
matched to 50Ω. It is suitable for RMS measurements
of high crest factor waveforms up to 12dB peak/average
ratio. No external coupling capacitor is necessary if DC
voltage at RF
IN
pin is kept below 1.0V. Contact applications
support for more information.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2158A
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
test setup
Figure 1: Test Setup for RF Performance Measurements
(Note 1)
Supply Voltage(V
CC
):................................................3.8V
DC Voltage at RF
IN
: ....................................–0.3V to 1.0V
DC Voltage at FLTR: .................................. –0.3V to 0.4V
DC Voltage at EN: ...................................... –0.3V to 3.8V
RF
IN
Input Power-Average: ...................................15dBm
T
JMAX
.................................................................... 150°C
Case Operating Temperature Range ....... –40°C to 105°C
Storage Temperature Range .................. –65°C to 150°C
Note 1: Voltage on all pins must not exceed V
CC
+0.3V or
be less than –0.3V.
CAUTION: This part is sensitive to electrostatic discharge
(ESD). Observe proper ESD precautions when handling
the LTC5596.
+
–
DC
POWER
SUPPLY
SIGNAL
GENERATOR
UP TO 40GHz
3dB PAD
(OPTIONAL)
DC
VOLTMETER
+
–
