1

dc1861af

DEMO MANUAL DC1861A

DESCRIPTION

ABSOLUTE MAXIMUM RATINGS

LTC5567

300MHz to 4GHz Active Downconverting

Mixer with Wideband IF

Demonstration circuit 1861A is optimized for evaluation

and LO input ports are internally matched to 50Ω, from

1.4GHz to 3GHz, and from 1GHz to 4GHz, respectively.

The IF output uses a bandpass network followed by an 8:1

transformer to provide a 50Ω match at 153MHz. The LO

input is easily matched for higher or lower frequencies, as

low as 300MHz, with simple external matching. The low-

capacitance differential IF output is usable up to 2.5GHz.

Design files for this circuit board are available at

http://www.linear.com/demo

LO Input Power (350MHz to 4.5GHz)................. +10dBm

LO Input DC Voltage............................................... ±0.1V

RF Input Power (300MHz to 4GHz) .................... +15dBm

RF Input DC Voltage............................................... ±0.1V

TEMP Monitor Input Current..................................10mA

Storage Temperature Range .................. –65°C to 150°C

CAUTION: This part is sensitive to electrostatic discharge

(ESD). Observe proper ESD precautions when handling

the LT5567.

L, LT, LTC, LTM, μModule, Linear Technology and the Linear logo are registered trademarks of

Linear Technology Corporation. All other trademarks are the property of their respective owners.

BOARD PHOTO

Figure 1. Test Setup for Mixer Two-Tone Measurements