1P620S - Anaren, Inc. - Datasheet.Directory

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and Reel For Pick and

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Model 1P620

Rev. B

Pico Xinger

20dB Directional Coupler

Description

The 1P620 Pico Xinger is a low profile, miniature 20dB directional coupler

in an easy to use surface mount package designed for MMDS and WLAN

applications. The 1P620 is for power and frequency detection as well as

power injection. The 1P620 is an ideal solution for the ever-increasing

demands of the wireless industry for smaller printed circuit boards and high

performance. Parts have been subjected to rigorous qualification testing

and units are 100% tested. They are manufactured using materials with x

and y thermal expansion coefficients compatible with common substrates.

Available in both 5 of 6 tin lead (1P620) and 6 of 6 RoHS compliant tin

immersion (1P620S).

ELECTRICAL SPECIFICATIONS**

Frequency Mean

Coupling Insertion

Loss VSWR Freq.

Sensitivity

GHz dB dB Max Max : 1 dB Max

2.3 – 2.7 20 ± 0.75 0.25 1.22 ± 0.2

Directivity Power

Handling ΘJC

Operating

Temp.

dB Min Watts ºC / Watt ºC

Features:

• 2.3 – 2.7 GHz

• MMDS and WLAN

• Very Low Loss

• High Directivity

• Surface Mountable

• Tape And Reel

• Available in Lead-Free (as

illustrated) or Tin-Lead 20 25 35 -55 to +85

**Specification based on performance of unit properly installed on microstrip printed circuit

boards with 50 Ω nominal impedance. Specifications subject to change without notice.

1P620* Rev A Mechanical Outline

Dimensions are in Inc he s [Mill imet ers]

.250±.010

[6.35±0.25]

.200±.010

[5.08±0.25]

.064±.013

[1.64±0.33]

Pin 4

Pin 1 Pin 2

Pin 3

Pin 1

Pin 4

Pin 3

Pin 2

4X .020±.004

[0.51±0.10]

GND

4X .034±.004 SQ

[0.86±0.10]

Orientation

Marker Denotes

Pin Location

.170±.004

[4.32±0.10]

.120±.004

[3.05±0.10]

Denotes

Array Number

GND

USA/Canada:

Toll Free:

Europe:

(315) 432-8909

(800) 544-2414

+44 2392-232392

Available on Tape and

Reel For Pick and Place

Manufacturing.

Model 1P620

Rev. B

Typical Performance: 2.0 GHz. – 3.0 GHz.

Coupling 1P620S

-21.5

-21.0

-20.5

-20.0

-19.5

2000 2200 2400 2600 2800 3000

Frequency (MHz)

Coupling (dB)

Return Loss 1P620S

-50

-40

-30

-20

-10

2000 2200 2400 2600 2800 3000

Frequency (MHz)

Return Loss (dB)

Directivity 1P620S

-50

-40

-30

-20

-10

2000 2200 2400 2600 2800 3000

Frequency (MHz)

Directivity (dB)

Transmission Loss 1P620S

-0.25

-0.20

-0.15

-0.10

-0.05

0.00

2000 2200 2400 2600 2800 3000

Frequency (MHz)

Transmission Loss (dB)

COUPLING

Choice of a coupling value in an application normally

depends on the power level of the main (sampled) line.

For example, if the coupler is being used to monitor main

line power, the coupling value is selected to provide

sufficient power to the monitoring device and yet

minimize system loss. Note that any coupler reduces

power flowing in the main line by the amount coupled off;

a 10dB coupler reduces main line power by 1 dB (10%)

where a 20dB coupler reduces it by only 0.044dB (1%).

Anaren uses mean coupling and frequency sensitivity

with the coupling specification. The mean coupling value

is arrived at by periodically sampling the coupling value

over the specified band and averaging the readings.

Frequency sensitivity is the peak to peak variation in

coupling over the specified band.

VSWR & DIRECTIVITY

In directional couplers, directivity is specified in lieu of

isolation. Directivity is a measure of how well the coupled

power is isolated from reflections at the main line output

port. For example, open or short circuiting the output port

of a coupler with 20dB directivity would only affect the

coupled output power by 1% and only 0.1% for 30dB

directivity. High directivity is especially important if the

coupler is being used to measure the VSWR of a device

at its output port. In this application, accurate

measurements of forward and reverse power are

required.

In theory, VSWR and directivity characteristics of a

coupler are perfect; the input and output ports are

perfectly matched and no power is coupled to the isolated

port. In practice, factors associated with the design and

manufacturing processes limit VSWR and directivity. The

Available on Tape

and Reel For Pick and

Place Manufacturing.

USA/Canada:

Toll Free:

Europe:

(315) 432-89 09

(800) 544-24 14

+44 2392-232392

Model 1P620

Rev. B

VSWR & DIRECTIVITY (CONTI NUED)

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.

PIN CONFIGURATION

The 1P520’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.

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

1P620* Rev A Mounting Footprint

Dimensions are in Inches [Millimeters]

To ensure proper electrical and thermal performance

there must be a ground plane with 100%

solder connection underneath the part

4X .063 SQ

[1.60]

4X .034

[0.86]

.170

[4.32]

.120

[3.05]

4X 50 Ω

Transmission

Line

Multiple

plated thru holes

to ground

USA/Canada:

Toll Free:

Europe:

(315) 432-8909

(800) 544-2414

+44 2392-232392

Available on Tape and

Reel For Pick and Place

Manufacturing.

Model 1P620

Rev. B

PACKAGING

Packaging follows EIA-481-2. Parts are oriented in tape as shown below. Minimum ord er quantities are 2000

per reel and 77 per tube.

Xinger® Tape & Reel Diagram