BALF-SPI-02D3 Datasheet, PDF (1/12 Pages) STMicroelectronics – Low amplitude imbalance

BALF-SPI-02D3
50 ohm nominal input / conjugate match balun to SPIRIT1 434
MHz, with integrated harmonic filter
Datasheet - production data
Figure 1: Pin coordinates (top view)
Flip-Chip (6 bumps) package
Features
 50 Ω nominal input / conjugate match to
SPIRIT1
 Low insertion loss
 Low amplitude imbalance
 Low phase imbalance
 Small footprint
Benefits
 Very low profile < 670 μm after reflow
 High RF performance
 RF BOM and area reduction
Applications
 434 MHz impedance matched balun filter
 Optimized for ST chip set SPIRIT1
Description
STMicroelectronics BALF-SPI-02D3 is an ultra
miniature balun. The BALF-SPI-02D3 integrates
matching network and harmonics filter. Matching
impedance has been customized for the SPIRIT1
ST transceiver.
The BALF-SPI-02D3 uses STMicroelectronics
IPD technology on non-conductive glass
substrate which optimize RF performance.
Figure 2: Application schematic (top view)
C0
1.8 - 3.6 V
20 19 18 17 16
GPIO1
1 GPIO0
15
SDN
L7
2 MISO
SMPS Ext1 14
3 MOSI
SPIRIT1
SMPS Ext2 13
4 SCLK
TX 12
5 CSn
R0
RBIAS
11
XOUT
6 7 8 9 10
1.8-3.6 V
XTAL
C9
C10
C13
C12
L8
C11
L0
CX
BALF-SPI-02D3
Antenna
(50 Ω)
SMD
L0
L7
L8
C11
C12
C13
CX
Table 1: Device summary
PN
LGQ15HSR15J02
LQM21FN100M70L
LQW15AN62NG00
GRM188R60J105KA01D
GRM155R71C104KA88D
GRM1555C1H331JA01D
GRM1555C1H221JA01
Value
150 nH
10 µH
62 nH
1 µF
100 nF
330 pF
220 pF
March 2017
DocID027278 Rev 4
This is information on a product in full production.
1/12
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