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S2-LP Datasheet(PDF) 12 Page - STMicroelectronics

Part # S2-LP
Description  Excellent receiver selectivity and blocking
PDF  90 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

S2-LP Datasheet(HTML) 12 Page - STMicroelectronics

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Typical application diagram and pin description
S2-LP
12/90
DocID029944 Rev 1
Figure 3: Suggested application diagram (embedded SMPS not used)
Table 2: Description of the external components of the typical application diagrams
Components
SMPS ON
SMPS OFF
Description
C0
X
X
Decoupling capacitor for on-chip voltage regulator
to digital part
C1
X
-
SMPS LC filter capacitors
C2, C3
X
X
Crystal loading capacitors
C4
X
X
Decoupling capacitor for on-chip voltage regulator
to synthesizer (LF part)
C5
X
X
Decoupling capacitor for band-gap voltage
reference of VCO regulator
C6
X
X
Decoupling capacitor for on-chip voltage regulator
to LNA-MIXER
C29, C30, C31,
C32
X
X
TX LC filter/matching capacitors
C11, C13, C16,
C21
X
X
DC blocking capacitors
C10, C14, C17
X
X
RF balun/matching capacitors
L0
X
-
SMPS LC filter inductor
L7
X
X
RF choke inductor or resonating inductor (upon
RF network topology)
L8, L9, L10
X
X
TX LC filter/matching inductors
S2-LPQTR
VDD SMPS
SMPS1
SMPS2
XOUT
XIN
SDN
VSMPS2
VBATT
VBATT
SHUTDOWN
DIGITAL INTERFACE
C0
C2
C3
XTAL
C4
C5
C6
C10
C16
C30
C31
C32
C21
C17
L7
L9
L10
L6
L5
C11
C13
C14
L3
L8
C28
C29
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
SCLK
SDI
SDO
VDD DIG/RX
RX-
RX+
EXT 1.4-1.8 V ≡ VSMPS2



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