Model BD2425NnRFA00
Rev A
Ultra Low Profile 0404 Balun
For nRF24L01 and nRF24L01+
(Anaren Application Note Ann-3001)
Description
The BD2425NnRF is a low cost, low profile subꢀminiature 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 50ꢀ 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.
Detailed Electrical Specifications: Specifications subject to change without notice.
ROOM (25°C)
Typ.
Features:
• 2400 – 2525 MHz
Parameter
Min.
Max
Unit
MHz
Frequency
2400
2525
• 0.57 mm Height Profile
• Matched to Nordic Semiconductor
nRF24L01 and nRF24L01+
• Low Insertion Loss
• Surface Mountable
• Tape & Reel
Unbalanced Port Impedance**
Balanced Port Impedance**
Return Loss**
50
ꢁ
Matched
ꢁ
dB
dB
10.2
1.25
Insertion Loss* **
• Non-conductive Surface
• RoHS Compliant
Power Handling
1
Watts
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: Annꢀ3001
Outline Drawing
Top View (Nearꢀside)
Side View
Bottom View (Farꢀside)
.012 [0.30]
±.001
±0.03
.022
[0.57
±.004
1
.041
]
0.12 [0.30]
2
3
±0.10
[1.05
]
3x.010
[0.25]
±.004
±0.10
.041
[1.05
]
4
.020 [0.50]
3x.010
[0.25]
.020 [0.50]
Pin
1
Designation
GND / DC Feed
+ RF GND
2
3
4
Unbalanced Port
Balanced Port
Balanced Port
Dimensions are in Inches [Millimeters]
Mechanical Outline
Tolerances are NonꢀCumulative
USA/Canada:
Toll Free:
(315) 432ꢀ8909
(800) 411ꢀ6596
+44 2392ꢀ232392
Available on Tape
and Reel for Pick and
Place Manufacturing.
Europe
: