1
dc2461af
DEMO MANUAL DC2461A
Description
Absolute MAxiMuM input
rAtings
LTC5548
2GHz to 14GHz Microwave
Mixer with Low IF Frequency
Demonstration circuit 2461A is optimized for evaluation
of the
LTC
®
5548
passive double-balanced mixer with
integrated LO frequency doubler. Its RF port is matched
to 50Ω from 2GHz to 13.6GHz with 9dB return loss, and
the LO port is matched to 50Ω from 1GHz to 12GHz with
10dB return loss. The differential IF port is usable from
DC to 6GHz. The LTC5548 can be used for upconverting
and downconverting applications.
The internal LO doubler can be enabled to allow operation
with a lower frequency LO input signal such as that from
the
LTC6945/LTC6946
or
LTC6947/LTC6948
family of
frequency synthesizers.
Design files for this circuit board are available at
http://www.linear.com/demo/DC2461A
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.
boArD lAyout
Figure 1. DC2461A
Supply Voltage (EN) ....................................................4V
Enable Input Voltage (EN) ................–0.3V to V
CC
+ 0.3V
LO Input Power (1GHz to 12GHz) .........................10dBm
LO Input DC Voltage ............................................... ±0.1V
RF Input Power (2GHz to 14GHz) .........................20dBm
RF Input DC Voltage ............................................... ±0.1V
IF Input Power (LF to 6GHz) .................................20dBm
IF Input DC Voltage ................................................ ±0.1V
Operating Temperature Range (T
C
) ........ –40°C to 105°C
Junction Temperature (T
J
) .................................... 150°C
Storage Temperature Range .................. –65°C to 150°C
Caution: This part is sensitive to electrostatic discharge
(ESD). Observe proper ESD precautions when handling
the LTC5548.
