Available on Tape

and Reel for Pick and

Place Manufacturing.

USA/Canada:

Toll Free:

Europe

:

(315) 432-8909

(800) 411-6596

+44 2392-232392

Model BD2425NnRF

Rev B

Ultra Low Profile 0404 Balun

For nRF24L01 and nRF24L01+

(Anaren Application Note Ann-3001)

Description

The BD2425NnRF is a low cost, low profile sub-miniature unbalanced to

balanced transformer designed for differential inputs and output, tuned to provide

optimal performance in tandem with the Nordic Semiconductor nRF24L01 and

nRF24L01+. The BD2425NnRF is ideal for high volume manufacturing and delivers

higher performance than a discrete implementation. The BD2425NnRF has an

unbalanced port impedance of 50Ω and matched balanced port impedance when

used in the specified matching network, which is the conjugate match of the

nRF24L01 and nRF24L01+ devices. This transformation enables single ended

signals to be applied to differential ports on the nRF24L01 and nRF24L01+. The

BD2425NnRF is available on tape and reel for pick and place high volume

manufacturing.

ROOM (25°°°°C)

Parameter

Min.

Typ.

Max

Unit

Frequency

2400

2525

MHz

Unbalanced Port Impedance**

50

Balanced Port Impedance**

Matched

Return Loss**

10.2

dB

Insertion Loss* **

1.25

dB

Power Handling

1

Watts

Features:

• 2400 – 2525 MHz

• 0.57 mm Height Profile

• Matched to Nordic Semiconductor

nRF24L01 and nRF24L01+

• Low Insertion Loss

• Surface Mountable

• Tape & Reel

• Non-conductive Surface

• RoHS Compliant

Operating Temperature

-55

+85

ºC

* Insertion Loss stated at room temperature (Insertion Loss is approximately 0.1 dB higher at +85 ºC)

** Stated performance assumes proper matching network found in application note: Ann-3001

Outline Drawing

Mechanical Outline

Dimensions are in Inches [Millimeters]

Tolerances are Non-Cumulative

Bottom View (Far-side)

Side View

Top View (Near-side)

Unbalanced Port

GND / DC Feed

+ RF GND

4

3

Designation

Pin

1

2

1

2

3

4

Balanced Port

.020 [0.50]

.020 [0.50]

Balanced Port

3x.010

[0.25]

3x.010

[0.25]

0.12 [0.30]

.012 [0.30]