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Linear Technology DC2483A-A Demo Manual
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Linear Technology DC2483A-A Demo Manual

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Description
The
LTC
5562
is a versatile low power mixer optimized
®
for applications requiring very wide input bandwidth, low
distortion, and low LO leakage. This mixer can be used
for either upconverting or downconverting applications,
and provides a nominal conversion gain of 1dB. Demon-
stration circuit 2483A-A showcases the LTC5562 mixer
for upconverting applications while demonstration circuit
2483A-B is tuned for downconverting applications. The
differential inputs are optimized for use with 1:1 trans-
mission-line baluns, allowing very wideband impedance
matching. The LTC5562 uses a 3.3V supply for low power
consumption and an enable pin allows the part to be shut
aBsolute MaxiMuM input ratings
Supply Voltage (V
Enable Input Voltage (EN) ................–0.3V to V
+
–
LO
, LO
Input Power (1GHz to 7GHz) .................10dBm
+
–
IN
, IN
Power (10MHz to 7GHz)..........................15dBm
LGND Voltage............................................... –0.3V to 1V
Operating Temperature Range (T
BoarD photo
Arrow.com.
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+
–
, OUT
, OUT
) ..............................4V
CC
) ........ –40°C to 105°C
C
Figure 1. DC2483A-A
DC2483A-A/DC2483A-B
Wideband Low Power
down for further power savings. The total mixer current
is adjustable, allowing for even further power savings.
The standard match frequency ranges for each board are
outlined in the table below.
DEMO BOARD INPUT RANGE
DC2483A-A
DC2483A-B
Design files for this circuit board are available at
http://www.linear.com/demo/DC2483A-A
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Analog
Devices, Inc. All other trademarks are the property of their respective owners.
Junction Temperature (T
+ 0.3V
Storage Temperature Range .................. –65°C to 150°C
CC
CAUTION: THIS PART IS SENSITIVE TO ELECTROSTATIC
DISCHARGE (ESD). OBSERVE PROPER ESD PRECAU-
TIONS WHEN HANDLING THE LTC5562.
DEMO MANUAL
Active Mixer
LO RANGE
30MHz to 3GHz 2.8GHz to 3.4GHz 3.3GHz to 3.7GHz
30MHz to 3GHz 0.4GHz to 1.4GHz 10MHz to 550MHz
) .................................... 150°C
J
Figure 2. DC2483A-B
LTC5562
OUTPUT RANGE
dc2483aabf
1

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Summary of Contents for Linear Technology DC2483A-A

  • Page 1 The LTC5562 uses a 3.3V supply for low power consumption and an enable pin allows the part to be shut L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Analog Devices, Inc. All other trademarks are the property of their respective owners.
  • Page 2 DEMO MANUAL DC2483A-A/DC2483A-B notes on test equipMent setup • High performance signal generators with low harmonic • Spectrum analyzers can produce significant internal outputs should be used for 2-tone measurements. Oth- distortion products if they are overdriven. Generally, erwise, lowpass filters at the signal generator outputs spectrum analyzers are designed to operate at their should be used to suppress harmonics.
  • Page 3 DEMO MANUAL DC2483A-A/DC2483A-B proper test setups Figure 3. DC2483A-A Upconverter Two-Tone Test Setup Figure 4. DC2483A-B Downconverter Two-Tone Test Setup dc2483aabf Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from...
  • Page 4 DEMO MANUAL DC2483A-A/DC2483A-B quick start proceDure (Dc2483a-a) 1. Connect all test equipment as shown in Figure 3. 5. Set the LO signal generator to provide a 3360MHz CW signal at about 0dBm to the demo board’s LO port. 2. Set the power supply output voltage to 3.3V and set the current limit to 60mA.

  • Page 5: Parts List

    DEMO MANUAL DC2483A-A/DC2483A-B parts list ITEM REFERENCE PART DESCRIPTION MANUFACTURER/PART NUMBER DC2483A-A Required Circuit Components C1-C3, C8, C9 CAP ., 1000pF, X7R, 50V, 10%, 0402 MURATA GRM155R71H102KA01D C4, C6, C7 CAP ., 1.2pF, C0G, 50V, ±0.25pF, 0402 MURATA GJM1555C1H1R2CB01D CAP ., 10pF, C0G, 50V, 5%, 0402...

  • Page 6: Schematic Diagram

    DEMO MANUAL DC2483A-A/DC2483A-B scheMatic DiagraM dc2483aabf Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Arrow.com. Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from Downloaded from...
  • Page 7 Information furnished by Linear Technology Corporation is believed to be accurate and reliable. However, no responsibility is assumed for its use. Linear Technology Corporation makes no representa- tion that the interconnection of its circuits as described herein will not infringe on existing patent rights.
  • Page 8 Linear Technology Corporation (LTC) provides the enclosed product(s) under the following AS IS conditions: This demonstration board (DEMO BOARD) kit being sold or provided by Linear Technology is intended for use for ENGINEERING DEVELOPMENT OR EVALUATION PURPOSES ONLY and is not provided by LTC for commercial use. As such, the DEMO BOARD herein may not be complete in terms of required design-, marketing-, and/or manufacturing-related protective considerations, including but not limited to product safety measures typically found in finished commercial goods.

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