sx1441 Semtech Corporation, sx1441 Datasheet - Page 78

• Manufacturer Part Number: sx1441
• Description: Bluetooth V1.2 Soc For Voice And Data Applications With Dsp Capabilities
• Manufacturer: Semtech Corporation

Personal Area Network
5 APPLICATION SCHEMATICS – BLUETOOTH HEADSET
© Semtech 2006
TBD
C1
Antenna
2
1
V2.2
BP 2520
LEGEND
test points,
accessible on PCB
Bluetooth Headset
output from XE1413
input to XE1413
Reference Design
PRELIMINARY
pins not connected
3
4
C2 10 pF
5
Page 1/2
AS213-
92
3
1
2.2pF
C3 10 pF
C24
10pF
C23
C4 1.0 pF
VDDR
VDDR
L2
Figure 39 - Headset application schematic, part 1 of 2
0.1 μF
C6
0.1 μF
C8
3.9 nH
VDDR
10 pF
10 pF
C10
C22
VDDM
2.2 μF
1 nF
10 pF
0.1 μF
C5
C11
C9
C7
C16
1 nF
AREG_VDD
PA_VDD
VCO_TUNE
MIX_VDD
MOD_REF
VCO_VDD
LNA_VDD
RF_INP
IC
PA_OUT
REG_BG
RF_INN
C17 2.2 nF
0.1 μF
C18 220 pF
C13
VDDR
27kΩ
R2
2.2 μF
C15
78
10pF
C14
VDDR
10pF
C24
XE1413
VDDR
0.1uF
C12
0.1 μF
C19
13MHz
Y1
Y2
SPI_DATA_OUT
PWR_RST_BAR
SPI_DATA_IN
32kHz
DREG_VDD
SX1441 – Bluetooth® 1.2 SoC
SYNC_DET
RX_DATA
D_VDD_IO
TX_DATA
D_VDD
TX_EN
RX_EN
2.2 μF
REG_PD
C21
SPI_DATA_BB2R
SYNC_DET
PWR_RST_BAR
RX_DATA
TX_DATA
SPI_DATA_R2BB
TX_EN
RX_EN
SPI_CLK
SPI_EN_BAR
SYS_CLK
SLW_CLK
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Data Sheet
VDDM
2.2 μF
C20