acmd-6007 Avago Technologies, acmd-6007 Datasheet - Page 9

• Manufacturer Part Number: acmd-6007
• Description: Lte Band 7 Duplexer
• Manufacturer: Avago Technologies

ACMD-6007
GROUND PLANE OPENING FOR LAND PAD
Notes:
1. Dimensions in mm
2. Top view
Figure 25. Suggested PCB Layout.
A PCB layout using the principles illustrated in the figure
above is recommended to optimize performance of the
ACMD-6007.
The transmission line dimensions shown are designed to
achieve an impedance of 50 ohms for an 80μm thick PCB
layer with a dielectric constant of 3.4. If other PCB materials
or thicknesses are used, the 0.25 mm gap spacing may
need to be adjusted to retain a Zo of 50 ohms.
It is important to maximize isolation between the Tx and
Rx ports.
9
3 X 0.90 X .095, CHAMFER 0.12 X 45°
Rx
50-OHM LINE
3 X 0.20
High isolation is achieved by: (1) maintaining a continuous
ground plane around the I/O connections and duplexer
mounting area, and (2) surrounding the I/O ports with
sufficient ground vias to enclose the connections in a
“Faraday cage. ”
The ground vias under the ACMD-6007 mounting area
are also needed to provide adequate heat sinking for the
device.
1.90
0.95
Ant
6 X 0.25 TYP
(ADJUST FOR 50 OHMS)
Tx
3 X 0.50 X 0.50
LAND PAD