Preliminary
CXE-1089Z
Application Schematic
V+
C1
C2
L1
C3
CXE-1089Z
RF IN
RF OUT
C4
*RBIAS
Application Circuit Element Values
Reference Designator
Frequency (MHz) 50 to 1200
F-connectors
C1, C3, C4
C2
1000pF 0603 size
100pF 0603 size
1.2uH 1008LS size
See table below
L1
*R
BIAS
*Optional shunt resistor can be used to lower device current.
Performance degradation may occur.
RBIAS
Device Current (VD=5.0V)
1.3kΩ
2.4kΩ
4.7kΩ
open
80mA
90mA
100mA
110mA
Evaluation Board Layout and Bill of Materials
Rbias
125873
MicroDevices
75ohm 31mil SOT-89
Mounting Instructions
1. Solder the copper pad on the backside of the device package to the ground plane.
2. Use a large ground pad area with many plated through-holes as shown.
3. We recommend 1 or 2 ounce copper. Measurements for this data sheet were made on a 31mil thick GTEK board with 1
ounce copper on both sides.
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at (+1) 336-678-5570 or sales-support@rfmd.com.
EDS-105785 Rev D
9 of 10
RFMD [ RF MICRO DEVICES ]
