CYWUSB6935_10 Datasheet, PDF (7/36 Pages) Cypress Semiconductor – WirelessUSB™ LR 2.4 GHz DSSS Radio SoC

CYWUSB6935
Application Examples
Figure 7 shows a block diagram example of a typical battery powered device using the CYWUSB6935 chip.
Figure 8 shows an application example of a WirelessUSB LR alarm system where a single hub node is connected to an alarm panel.
The hub node wirelessly receives information from multiple sensor nodes in order to control the alarm panel.
Figure 7. CYWUSB6935 Battery Powered Device
+
Battery ^-
LDO/
DC2DC
3.3 V
0.1μF
2.0 pF
PCB Trace
Antenna
2.0 pF
1.2 pF
Application
Hardware
Vcc
PSoC™
8-bit MCU
RESET
PD
IRQ
Vcc
ns RFIN
ig _RFOUT
Des ^{WirelessUSB LR}
3.3 nH
2.2 nH
27 pF
w ^SPI
e ₄
d ^{for N} _{Figure 8. WirelessUSB LR Alarm System}
Not ^{Recommende ALARM PANEL}
W ir elessU S B LR
W ir elessU S B LR
W ir elessU S B LR
13MHz
Crystal
PSoC + SMOKE
DETECTOR
P S oC + MO TIO N
DETECTOR
PSoC + DOOR
SENSOR
W ir elessU S B LR +
PSoC
…
W ir elessU S B LR
PSoC + KEYPAD
Document Number : 38-16008 Rev. *G
Page 7 of 36
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