Linear Technology LTC5510 Demo Manual

Description
Demonstration circuit 1984A showcases the
wideband high linearity active mixer for VHF/UHF upmixer
applications, where a 70MHz input signal is upconverted
to the 100MHz to 1GHz output range. Its input port is
optimized for 30MHz to 2.6GHz, and its output port is
optimized for 10MHz to 1.3GHz. The LO input can be
either high side or low side.
Another demonstration circuit, the DC1983A, utilizing a
multilayer chip hybrid balun, is designed for evaluating
the LTC5510 for wideband up/downmixer applications
with 30MHz to 3GHz input and 1.2GHz to 2.1GHz output.
DEMO BOARD INPUT RANGE
DC1983A 30MHz to 3GHz
DC1984A 30MHz to 2.6GHz
performance summary
P = –10dBm (–10dBm/tone for two-tone tests), unless otherwise noted. (Note 1)
IN
PARAMETER
Input Frequency Range
Output Frequency Range
LO Input Frequency Range
LO Input Power Range
Supply Voltage Range
Supply Current
Total Supply Current During Shutdown
EN Input High Voltage (On)
EN Input Low Voltage (Off)
EN Input Current
Turn-On Time
Turn-Off Time
Temperature Monitor Pin (TEMP)
DC Voltage at T = 25°C
J
Temperature Monitor Pin (TEMP)
Voltage Temperature Coefficient
LTC 5510.
®
LO RANGE OUTPUT RANGE
5MHz to 6GHz 1.2GHz to 2.1GHz
5MHz to 6GHz 10MHz to 1.3GHz
Specifications are at T
CONDITIONS
5V Supply, R1 = Open (Default Configuration)
3.3V Supply, R1 = 2kΩ
5V Supply, R1 = Open (Default Configuration)
3.3V Supply, R1 = 2kΩ
EN = Low
–0.3V to V + 0.3V
CC
EN: Low to High
EN: High to Low
I = 10µA
IN
I = 80µA
IN
I = 10µA
IN
I = 80µA
IN
DEMO MANUAL DC1984A
1MHz to 6GHz Wideband
High Linearity Active Mixer
The LTC5510 is a high linearity active mixer optimized
for applications requiring very wide input bandwidth,
low distortion and low LO leakage. The IC includes a
double-balanced active mixer with an input buffer and a
high speed LO amplifier. The mixer can be used for both
up- and down-conversion and requires only 0dBm of LO
power to achieve excellent distortion and noise perfor-
mance. The LTC5510 is optimized for 5V, but can also
be used with a 3.3V supply with reduced performance.
The shutdown function allows the part to be disabled for
further power saving.
Design files for this circuit board are available at
http://www.linear.com/demo/DC1984A
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.
= 25°C, V = 5V, EN = High, P
C CC
LTC5510
= 0dBm,
LO
VALUE UNITS
30 to 2600 MHz
10 to 1300 MHz
5 to 6000 MHz
–6 to 6 dBm
4.5 to 5.3 V
3.1 to 3.5 V
98 mA
90 mA
1.3 mA
>1.8 V
<0.5 V
–20 to 200 µA
0.6 µs
0.6 µs
697 mV
755 mV
–1.80 mV/°C
–1.61 mV/°C
dc1984af
1