JP510S Datasheet, PDF (3/4 Pages) Anaren Microwave – UMTS and WCDMA

Model JP510S
Rev A
VSWR & DIRECTIVITY (CONTINUED)
internal meandering of the coupled lines and limitations
of building perfect 50Ω transitions at the input and
output ports of the device are the most significant
factors against perfect VSWR and directivity.
Typically, VSWR and directivity of 1.15:1 and 25 dB
respectively are achieved in practice.
INSERTION LOSS
Coupler insertion loss is defined as the log of the input
power divided by the sum of the power at the two
output ports. In practice, typical loss is approximately
0.20 dB. Specification limits are somewhat higher due
to imperfect test conditions; surface mount couplers
must be tested in test fixtures that negatively affect
results.
MOUNTING
For Xinger surface mount couplers to operate optimally,
there must be 50Ω transmission lines leading to and from
all of the RF ports. To ensure proper electrical and
thermal performance, there must be a ground plane with
100% solder connection underneath the part. If either of
these two conditions is not satisfied, insertion loss,
coupling, VSWR and directivity may not meet published
specifications.
SUGGESTED FOOTPRINT
To ensure proper electrical and thermal performance
there must be a ground plane with 100%
solder connection underneath the part
PIN CONFIGURATION
The JP510S’s have an orientation marker to denote
either pin 1 or pin 2. When the input port is identified,
the output, coupled and isolated ports are known
automatically. For example, if the input port for a
device was selected to be Pin 1, Pin 2 automatically
becomes the output port, Pin 4 becomes the coupled
port, and Pin 3 is the isolated port. Similarly, if Pin 2
was to be selected as the input port, the adjacent port
on the long side (Pin 1) is the output port, the adjacent
port on the short side (Pin 3) is the coupled port, and
the opposite port (Pin 4) is the isolated port. Either
port on the same side as the orientation marker can be
selected as the input port, as shown in the table, which
shows both pin configurations. The use of pin 1 or pin
2 as the input port ensures phase consistency as well
as maximum power handling.
Multiple
plated thru holes
to ground
.170
[4.32]
4X .034
[0.86]
4X .063 SQ
[1.60]
.120
[3.05]
4X 50
Transmission
Line
Dimensions are in Inches [Millimeters]
JP510S Mounting Footprint
Available on Tape
and Reel For Pick and
Place Manufacturing.
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