Datasheet ADL5724 (Analog Devices) - 9

Data Sheet ADL5724 APPLICATIONS INFORMATION LAYOUT 10 9
Solder the exposed pad on the underside of the ADL5724 to a low thermal and electrical impedance ground plane. This pad is
8
typically soldered to an exposed opening in the solder mask on
7 B)
the evaluation board. Connect the ground vias to all other
(d 6
ground layers on the evaluation board to maximize heat
URE 5 IG
dissipation from the device package.
F IE 4 S NO 3 2 1 012.7 13.0 13.3 13.6 13.9 14.2 14.5 14.8 15.1 15.4
180 17-
FREQUENCY (GHz)
143 Figure 15. Noise Figure vs. Frequency
20 15
016 14317-
10
Figure 13. Evaluation Board Layout for the ADL5724 Package
5 ) DIFFERENTIAL vs. SINGLE-ENDED OUTPUT m B 0 d 3 (
This section provides the test results that compare the ADL5724
P –5 I T
using a differential vs. a single-ended output. When using the
U P –10 IN
device as a single-ended output, use the RFOP output on the
–15
evaluation board and terminate RFON to 50 Ω. Note that the
–20
converse can be done as well; however, doing so produces
–25
slightly different results from the plots shown in this section because there is some amplitude imbalance between the two
–3012.7 13.0 13.3 13.6 13.9 14.2 14.5 14.8 15.1 15.4
-021 differential ports, RFOP and RFON. The output trace and
FREQUENCY (GHz)
317 14 connector loss were not deembedded for these measurements. Figure 16. Input IP3 vs. Frequency
35 0 30 –5 25 –10 ) m ) B –15 B 20 d (d ( B IN d –20 A 15 G P1 T PU –25 IN 10 –30 5 –35 0
7
12.7 13.0 13.3 13.6 13.9 14.2 14.5 14.8 15.1 15.4 –40
01 20 7-
12.7 13.0 13.3 13.6 13.9 14.2 14.5 14.8 15.1 15.4
0
FREQUENCY (GHz)
17- 1431
FREQUENCY (GHz)
143 Figure 14. Gain vs. Frequency Figure 17. Input P1dB vs. Frequency Rev. 0 | Page 9 of 12 Document Outline FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION TABLE OF CONTENTS REVISION HISTORY SPECIFICATIONS AC SPECIFICATIONS DC SPECIFICATIONS ABSOLUTE MAXIMUM RATINGS THERMAL RESISTANCE ESD CAUTION PIN CONFIGURATION AND FUNCTION DESCRIPTIONS TYPICAL PERFORMANCE CHARACTERISTICS THEORY OF OPERATION APPLICATIONS INFORMATION LAYOUT DIFFERENTIAL vs. SINGLE-ENDED OUTPUT EVALUATION BOARD INITIAL SETUP RESULTS BASIC CONNECTIONS FOR OPERATION OUTLINE DIMENSIONS ORDERING GUIDE