參數(shù)資料
型號: CYWUSB6934
廠商: Cypress Semiconductor Corp.
英文描述: Sound/Security Multiconductor Cable; Number of Conductors:2; Conductor Size AWG:18; No. Strands x Strand Size:7 x 26; Jacket Material:Polyvinylchloride (PVC); Leaded Process Compatible:Yes; Conductor Material:Copper RoHS Compliant: Yes
中文描述: 個WirelessUSB LS的2.4GHz直接序列擴頻無線電芯片
文件頁數(shù): 17/30頁
文件大小: 305K
代理商: CYWUSB6934
CYWUSB6932
CYWUSB6934
Document 38-16007 Rev. *G
Page 17 of 30
Addr: 0x19
REG_THRESHOLD_L
4
Default: 0x08
7
6
5
3
2
1
0
Reserved
Threshold Low
Figure 7-17. Threshold Low
Bit
7
6:0
Name
Reserved
Threshold Low
Description
This bit is reserved and should be written with zero.
The Threshold Low value is used to determine the number of missed chips allowed when attempting to correlate a
single data bit of value ‘0’. A perfect reception of a data bit of ‘0’ with a 64 chips/bit PN code would result in zero
correlation matches, meaning the exact inverse of the PN code has been received. By setting the Threshold Low
value to 0x08 for example, up to eight chips can be erroneous while still identifying the value of the received data
bit. This value along with the Threshold High value determine the correlator count values for logic ‘1’ and logic ‘0’.
The threshold values used determine the sensitivity of the receiver to interference and the dependability of the
received data. By allowing a minimal number of erroneous chips the dependability of the received data increases
while the robustness to interference decreases. On the other hand increasing the maximum number of missed chips
means reduced data integrity but increased robustness to interference and increased range.
Addr: 0x1A
REG_THRESHOLD_H
Default: 0x38
7
6
5
4
3
2
1
0
Reserved
Threshold High
Figure 7-18. Threshold High
Bit
Name
Description
This bit is reserved and should be written with zero.
7
Reserved
6:0
Threshold High
The Threshold High value is used to determine the number of matched chips allowed when attempting to correlate
a single data bit of value ‘1’. A perfect reception of a data bit of ‘1’ with a 64 chips/bit or a 32 chips/bit PN code would
result in 64 chips/bit or 32 chips/bit correlation matches, respectively, meaning every bit was received perfectly. By
setting the Threshold High value to 0x38 (64-8) for example, up to eight chips can be erroneous while still identifying
the value of the received data bit. This value along with the Threshold Low value determine the correlator count
values for logic ‘1’ and logic ‘0’. The threshold values used determine the sensitivity of the receiver to interference
and the dependability of the received data. By allowing a minimal number of erroneous chips the dependability of
the received data increases while the robustness to interference decreases. On the other hand increasing the
maximum number of missed chips means reduced data integrity but increased robustness to interference and
increased range.
Addr: 0x1C
REG_WAKE_EN
Default: 0x00
7
6
5
4
3
2
1
0
Reserved
Wakeup En-
able
Figure 7-19. Wake Enable
Bit
Name
Description
These bits are reserved and should be written with zeroes.
7:1
0
Reserved
Wakeup Enable
Wakeup interrupt enable.
0 = disabled
1 = enabled
A wakeup event is triggered when the PD pin is deasserted and once the IC is ready to receive SPI communications.
相關(guān)PDF資料
PDF描述
CYWUSB6934-48LFXC Multiconductor Cable; Number of Conductors:2; Conductor Size AWG:18; No. Strands x Strand Size:7 x 26; Jacket Material:Polyvinylchloride (PVC); Leaded Process Compatible:Yes; Capacitance:30pF/ft; Conductor Material:Copper RoHS Compliant: Yes
CYWUSB6935-48LFXC WirelessUSB LRTM 2.4-GHz DSSS Radio SoC
CYWUSB6935-48LFXI WirelessUSB LRTM 2.4-GHz DSSS Radio SoC
CYWUSB6941 WirelessUSB EX Radio
CYWUSB6941-42BAC WirelessUSB EX Radio
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CYWUSB6934-48LFC 功能描述:IC WIRELESS USB 2.4GHZ 48VQFN RoHS:否 類別:RF/IF 和 RFID >> RF 收發(fā)器 系列:WirelessUSB™ 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:30 系列:- 頻率:4.9GHz ~ 5.9GHz 數(shù)據(jù)傳輸率 - 最大:54Mbps 調(diào)制或協(xié)議:* 應用:* 功率 - 輸出:-3dBm 靈敏度:- 電源電壓:2.7 V ~ 3.6 V 電流 - 接收:* 電流 - 傳輸:* 數(shù)據(jù)接口:PCB,表面貼裝 存儲容量:- 天線連接器:PCB,表面貼裝 工作溫度:-25°C ~ 85°C 封裝/外殼:68-TQFN 裸露焊盤 包裝:管件
CYWUSB6934-48LFXC 功能描述:射頻接收器 Tranciever COM RoHS:否 制造商:Skyworks Solutions, Inc. 類型:GPS Receiver 封裝 / 箱體:QFN-24 工作頻率:4.092 MHz 工作電源電壓:3.3 V 封裝:Reel
CYWUSB6934-48LTXC 功能描述:射頻收發(fā)器 2.4 GHz Wireless USB RoHS:否 制造商:Atmel 頻率范圍:2322 MHz to 2527 MHz 最大數(shù)據(jù)速率:2000 Kbps 調(diào)制格式:OQPSK 輸出功率:4 dBm 類型: 工作電源電壓:1.8 V to 3.6 V 最大工作溫度:+ 85 C 接口類型:SPI 封裝 / 箱體:QFN-32 封裝:Tray
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