HMC1190LP6GE
v01.1112
BROADBAND HIGH IP3 DUAL CHANNEL DOWNCONVERTER
w/ Fractional-N PLL & VCO, 0.7 - 3.5 GHz
Figure 7. Application Circuit for Narrowband RF Input Matching
It is recommended to use high side LO injection for RF frequencies below 1.2 GHz for better IIP3. For instance, higher
IIP3 can be obtained if LO input is driven with high side at RF=900 MHz. Please refer to Figure 8.
31
High Side LO
29
Low Side LO
27
25
23
21
19
17
15
0.7
1.1
1.5
1.9
2.3
2.7
3.1
3.5
FREQUENCY (GHz)
Figure 8. Input IP3 vs. High Side LO & Low Side LO @ VGATE=4.8V
For price, delivery and to place orders: Hittite Microwave Corporation, 2 Elizabeth Drive, Chelmsford, MA 01824
Phone: 978-250-3343
Fax: 978-250-3373
Order On-line at www.hittite.com
38
Application Support: Phone: 978-250-3343 or apps@hittite.com
HITTITE [ HITTITE MICROWAVE CORPORATION ]
