CYWUSB6935-48LFXI Cypress Semiconductor Corp, CYWUSB6935-48LFXI Datasheet - Page 28

• Manufacturer Part Number: CYWUSB6935-48LFXI
• Description: IC,Upconverter And Downconverter,LLCC,48PIN,PLASTIC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CYWUSB6935-48LFXI

• Frequency: 2.4GHz
• Data Rate - Maximum: 62.5kbps
• Modulation Or Protocol: DSSS, GFSK
• Applications: AMR, ISM, RKE
• Power - Output: 0dBm
• Sensitivity: -95dBm
• Voltage - Supply: 2.7 V ~ 3.6 V
• Current - Receiving: 57.7mA
• Current - Transmitting: 69.1mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-VQFN Exposed Pad, 48-HVQFN, 48-SQFN, 48-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 428-1626

Power Management Timing
Table 40. Power Management Timing
Notes
Document #: 38-16008 Rev. *E
t
t
t
t
t
t
t
t
t
t
t
23. The PD pin must be asserted at power up to ensure proper crystal startup.
24. When X13OUT is enabled.
25. Both the polarity and the drive method of the IRQ pin are programmable. See page 10 for more details.
26. A wakeup event is triggered when the PD pin is deasserted.
27. Measured with CTS ATXN6077A crystal.
PDN_X13
SPI_RDY
PWR_RST
RST
PWR_PD
WAKE
PD
SLEEP
WAKE_INT
STABLE
STABLE2
Parameter
(Reg 0x05, bits 1:0).
(Reg 0x1C, bit 0=1).
X 1 3 O U T
X13OUT
R E S E T
V C C
P D
IRQ
PD
Time from PD deassert to X13OUT
Time from oscillator stable to start of SPI transactions
Power On to RESET deasserted
Minimum RESET asserted pulse width
Power On to PD deasserted
PD deassert to clocks running
Minimum PD asserted pulse width
PD assert to low power mode
PD deassert to IRQ
PD deassert to clock stable
IRQ assert (wake interrupt) to clock stable
t
t
P W R _ R S T
P W R _ P D
t
SLEEP
[25]
Description
t
assert (wake interrupt)
t
P D N _ X 1 3
PD
(The values below are dependent upon oscillator network component selection)
[23]
Figure 14. Power On Reset/Reset Timing
[24]
Figure 15. Sleep / Wake Timing
Figure 15
t
S P I_ R D Y
t
WAKE
t
WAKE_INT
illustrates a wakeup event configured to trigger an IRQ pin event via the Wake Enable register
[26]
to within ±10 ppm
to within ±10 ppm
V
Conditions
CC
@ 2.7V
t
STABLE
Figure 15
t
STABLE2
illustrates default values for the Configuration register
1300
1300
Min.
10
1
1
t
R S T
2000
2000
2000
2100
2100
Typ
50
[27]
CYWUSB6935
Max.
Page 28 of 34
Unit
µs
µs
µs
µs
µs
µs
µs
ns
µs
µs
µs
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