SX1441EVK Semtech, SX1441EVK Datasheet - Page 79

• Manufacturer Part Number: SX1441EVK
• Description: KIT DEV FOR SX1441
• Manufacturer: Semtech
• Series: EasyBlue™r
• Type: Bluetoothr

Specifications of SX1441EVK

• For Use With/related Products: SX1441
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Contents: -
• Other names: SX1441DVK; SX1441DVK

Personal Area Network
© Semtech 2006
100 nF
C30
VDDM
TX_DATA
RX_DATA
TX_EN
RX_EN
VDDA
Q1
CS_BAR
SO
WP_BAR
GND
SST25VF020
1 μF
C33
SPI_DATA_R2BB
SPI_DATA_BB2R
HOLD_BAR
C31 220 nF
SYNC_DETECT
SPI_EN_BAR
SLW_CLK
VCC
SYS_CLK
SCK
100 nF
SPI_CLK
C43
SI
NRESET
1kΩ
1kΩ
1kΩ
VDDM
C32
220 nF
REG_PD
R36
R37
R38
C42 0.1 μF
Figure 40 - Headset application schematic, part 2 of 2
SYNC_DETECT
SPI_DATA_IN
SPI_DATA_OUT
SPI_EN_BAR
SPI_CLK_OUT
SLW_CLOCK_IN
SYS_CLOCK_IN
VMIC_N
RX_DATA
TX_DATA
NSS[3]
TX_EN
NSS[4]
RX_EN
VREGA
VDD_ANA
VDDM
NRESET
NSS[2]
VMIC_P
0.1 μF
C34
VDDM VDDM
0.1 μF
C35
SW2
SW1
VDDM
1 μF
C36
SX1441
1 μF
C37
VDDD
79
VDDM
4.7 μF
C38
VDDD
1 μF
C39
J1
PA_OUTN
WAKEUP
PA_OUTP
DBG[0]
DBG[1]
DBG[2]
DBG[3]
DBG[4]
DBG[5]
DBG[6]
DBG[7]
PB[0]
PB[1]
PB[2]
PB[3]
PB[4]
PB[5]
PB[6]
PB[7]
SW3
VDDM
V2.2
UA_CTS
UA_RTS
UA_TX
UA_RX
HCI_CTS
HCI_RTS
HCI_RX
HCI_TX
Bluetooth Headset
SX1441 – Bluetooth® 1.2 SoC
Reference Design
PRELIMINARY
VDDM
PWR_RST_BAR
L30 470 μH
L21 470 μH
VDDM
Page 2/2
www.semtech.com
1 μF
1 μF
C40
C41
LEGEND
Data Sheet
Regulated input voltage
test points,
accessible on PCB
output from XE1431
input to XE1431
pins not connected
VDDM