4140-0 Peregrine Semiconductor, 4140-0 Datasheet - Page 7

• Manufacturer Part Number: 4140-0
• Description: EVAL KIT FOR 4140
• Manufacturer: Peregrine Semiconductor
• Series: UltraCMOS™r
• Type: MOSFETr

Specifications of 4140-0

• Frequency: 0Hz ~ 6GHz
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: PE4140
• Other names: 4140-00

PE4140 in a Broadband CATV Upconverter
Matching placed at the LO port can greatly affect the efficiency with which applied LO power
drives the gates of the FETs. This can have a great affect on the IIP3 performance of a
mixer. An example of this is shown in the PE4140 CATV Upconverter schematic. Placing a
shunt 4.7nH inductor at each LO pin of the PE4140 improves LO power transfer over the 1 to
2 GHz band, increasing the IIP3 of the mixer by about 5dB from a circuit with no LO port
matching.
Peregrine Semiconductor Corportation
LO
1630MHz to
2130MHz
J6
IF
70Mhz
J3
1
1
T1
M/A COM ETC1.6-4-2-3
4
5
Component Reference disignators Refer to Evaluation board 101/0090~00A
T3
TOKO-617DB-1024-P3
3
2
1
4
5
Figure 6 Typical schematic for CATV Application
3
2
1
R2
2.7nH
R12
6.8nH

R3
6.8nH
R8
6.8nH
7
4
5
6
U1
MLP6-3X3
LO-
LO+
IF-
RF-
RF+
IF+
3
2
1
R17
0.5pF
Doc. 79/0082~00A
3
2
1
T2
M/A COM ETC1.6-4-2-3
4
5
R16
3.0pF
1
RF
1700Mhz to
2200Mhz
J4