BALF-2690-02D3 Datasheet, PDF (1/9 Pages) STMicroelectronics – Low amplitude imbalance

BALF-2690-02D3
50 ohm nominal input / conjugate match balun for STLC2690,
with integrated harmonic filter
Datasheet − production data
Flip-Chip package 4 bumps
Features
• 50 Ω nominal input / matched output differential
impedance
• Integrated harmonic filter
• Low insertion loss
• Low amplitude imbalance
• Low phase imbalance
• Small footprint < 1.54 mm²
Benefits
• Very low profile (< 560 µm after reflow)
• High RF performance
• RF BOM and area reduction
Description
STMicroelectronics BALF-2690-02D3 is a balun
design to transform single ended signal to
differential signals in Bluetooth applications. This
BALF-2690-02D3 has been customized for
STLC2690 Bluetooth transceiver with less than
1.2 dB insertion losses in the bandwidth
(2400 MHz-2500 MHz).
The BALF-2690-02D3 has been designed using
STMicroelectronics IPD (integrated passive
device) technology on non-conductive glass
substrate which optimize RF performance.
Figure 1. Device configuration (top view)
1
2
SE
A
GND
B
DIFF
DIFF
C
Applications
• Bluetooth STLC2690 application
• Mobile phone application
Figure 2. Application schematic
Antenna
BALF-2690-02D3
Z _IN
STLC2690
RF_P
RF_N
GND
September 2015
This is information on a product in full production.
DocID025234 Rev 4
1/9
www.st.com
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