LT5579IUH-PBF LINER [Linear Technology], LT5579IUH-PBF Datasheet - Page 18
![no-image](/images/no-image-200.jpg)
LT5579IUH-PBF
Manufacturer Part Number
LT5579IUH-PBF
Description
1.5GHz to 3.8GHz High Linearity Upconverting Mixer
Manufacturer
LINER [Linear Technology]
Datasheet
1.LT5579IUH-PBF.pdf
(20 pages)
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LT5579
TYPICAL APPLICATIONS
2140MHz with Low Side LO
The LT5579 was fully characterized with an RF output of
2140MHz and a high side LO. The part also works well
when driven with low side LO, however, the performance
benefi ted from the addition of common mode capacitance
to the IF input match. A 10pF capacitor to ground was
added to each IF pin. These capacitors were attached
near inductors L1 and L2. The measured performance is
shown in Figure 11.
18
Figure 12. LT5579 Evaluation Board (DC1233A)
Figure 11. Measured Performance when Tuned
for 240MHz IF , 2140MHz RF and Low Side LO
30
25
20
15
10
5
0
2000
T
f
P
P
f
IF
RF
A
IF
LO
= 240MHz
= 25°C
= –5dBm/TONE
= f
2050
= –1dBm
RF OUTPUT FREQUENCY (MHz)
IF
+ f
LO
2100
SSB NF
OIP3
GAIN
2150
2200
2250 2300
5579 F11
5579f
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