CYWUSB6934-28SEC Cypress Semiconductor Corp, CYWUSB6934-28SEC Datasheet - Page 9

IC WIRELESS USB 2.4GHZ 28-SOIC

CYWUSB6934-28SEC

Manufacturer Part Number
CYWUSB6934-28SEC
Description
IC WIRELESS USB 2.4GHZ 28-SOIC
Manufacturer
Cypress Semiconductor Corp
Datasheets

Specifications of CYWUSB6934-28SEC

Frequency
2.4GHz
Data Rate - Maximum
62.5kbps
Modulation Or Protocol
DSSS, GFSK
Applications
HID, PC, Peripheral Gaming Devices
Power - Output
0dBm
Sensitivity
-90dBm
Voltage - Supply
2.7 V ~ 3.6 V
Data Interface
PCB, Surface Mount
Antenna Connector
PCB, Surface Mount
Operating Temperature
0°C ~ 70°C
Package / Case
28-SOIC
Operating Temperature (min)
0C
Operating Temperature (max)
70C
Operating Temperature Classification
Commercial
Operating Supply Voltage (min)
2.7V
Operating Supply Voltage (typ)
3V
Operating Supply Voltage (max)
3.6V
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Memory Size
-
Current - Transmitting
-
Current - Receiving
-
Lead Free Status / Rohs Status
Not Compliant
Other names
428-1580-5

Available stocks

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Part Number
Manufacturer
Quantity
Price
Part Number:
CYWUSB6934-28SEC
Manufacturer:
CY
Quantity:
22 751
Note:
Document 38-16007 Rev. *G
3.
Bit
7:3
2
1
0
Bit
7:2
1:0
• 001 – Not Valid
• 010 – Not Valid
• 011 – Not Valid
• 111 – Not Valid.
[3]
[3]
[3]
The following Reg 0x04, bits 2:0 values are not valid:
Name
Reserved
IRQ Pin Select
Name
Reserved
Code Width
Data Rate
Sample
Rate
7
7
Addr: 0x04
Addr: 0x05
Description
These bits are reserved and should be written with zeroes.
The Code Width bit is used to select between 32 chips/bit and 64 chips/bit PN codes.
The number of chips/bit used impacts a number of factors such as data throughput, range and robustness to inter-
ference. By choosing a 32 chips/bit PN-code, the data throughput can be doubled or even quadrupled (when double
data rate is set). A 64 chips/bit PN code offers improved range over its 32 chips/bit counterpart as well as more
robustness to interference. By selecting to use a 32 chips/bit PN code a number of other register bits are impacted
and need to be addressed. These are PN Code Select (Reg 0x03, bit 5), Data Rate (Reg 0x04, bit 1), and Sample
Rate (Reg 0x04, bit 0).
The Data Rate bit allows the user to select Double Data Rate mode of operation which delivers a raw data rate of
62.5kbits/sec.
This bit is applicable only when using 32 chips/bit PN codes which can be selected by setting the Code Width bit (Reg
0x04, bit 2=1). When using Double Data Rate, the raw data throughput is 62.5 kbits/sec because every 32 chips/bit
PN code is interpreted as 2 bits of data. When using this mode a single 64 chips/bit PN code is placed in the PN code
register. This 64 chips/bit PN code is then split into two and used by the baseband to offer the Double Data Rate
capability. When using Normal Data Rate, the raw data throughput is 32kbits/sec. Additionally, Normal Data Rate
enables the user to potentially correlate data using two differing 32 chips/bit PN codes.
The Sample Rate bit allows the use of the 12x sampling when using 32 chips/bit PN codes and Normal Data Rate.
Using 12x oversampling improves the correlators receive sensitivity. When using 64 chips/bit PN codes or Double
Data Rate this bit is don’t care. The only time when 12x oversampling can be selected is when a 32 chips/bit PN code
is being used with Normal Data Rate.
1 = 32 chips/bit PN codes
0 = 64 chips/bit PN codes
1 = Double Data Rate - 2 bits per PN code (No odd bit transmissions)
0 = Normal Data Rate - 1 bit per PN code
1 = 12x Oversampling
0 = 6x Oversampling
Description
These bits are reserved and should be written with zeroes.
The Interrupt Request Pin Select bits are used to determine the drive method of the IRQ pin.
6
6
11 = Open Source (IRQ asserted = 1, IRQ deasserted = Hi-Z)
10 = Open Drain (IRQ asserted = 0, IRQ deasserted = Hi-Z)
01 = CMOS (IRQ asserted = 1, IRQ deasserted = 0)
00 = CMOS Inverted (IRQasserted = 0, IRQ deasserted = 1)
Reserved
5
5
Reserved
Figure 7-4. Configuration
Figure 7-3. Data Rate
REG_DATA_RATE
4
4
REG_CONFIG
3
3
Code Width
2
2
Data Rate
1
1
CYWUSB6932
CYWUSB6934
Default: 0x00
Default: 0x01
IRQ Pin Select
Sample Rate
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