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參數(shù)資料
| 型號： | 88W8500 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Wireless LAN 802.11b Access Point Chipset |
| 中文描述： | 無線局域網(wǎng)802.11b接入點芯片組 |
| 文件頁數(shù)： | 1/2頁 |
| 文件大?。?/td> | 153K |
| 代理商： | 88W8500 |
2.4 GHz
44 MHz
XOSC
50 MHz
XOSC
Power
Enable
Control
Serial I/F
TR_SW
ADC
DAC
VCO
Frequency
Synthesizer
Transmitter
Receiver
Antenna
Diversity
802.11
MAC
Protocol
Engine
I
Security
Engine
Serial
(EEPROM)
Controller
Power
Mgmt.
GPIO/
LED
UART
Baseband Processor
88W8500
88W8000
Demodulator
Modulator
RF
Filter
RF
Switch
On-Chip
LNA
On-Chip
PA
T/R Switch, Serial Interface, Power Enable Control
SDRAM
Flash
Controller
802.3u MAC
802.3u PHY
ARM9
CPU
Memory
EEPROM
External
Flash or
SDRAM
MII, PCI, or
Twisted Pair
JTAG
GPIO (15:0)
W
S
PRODUCT OVERVIEW
The Marvell
802.11b Access Point solution. The 88W8000 product performs all of the functions of an RF transceiver by
integrating a 20 dBm power ampliTer, low noise ampliTer, voltage-controlled oscillator, frequency synthesizer, as
well as other necessary RF and analog functions onto one CMOS chip. The 88W8500 device is a single chip that
combines the functions of the Direct Sequence Spread Spectrum (DSSS) baseband processor, Medium Access
Control (MAC) processor, on-chip CPU, on-chip memory, advanced encryption, external SDRAM/FLASH memory
controller, and one Fast Ethernet port (MAC and PHY). The high level of integration reduces the overall Bill of
Materials (BOM) cost for an access point by eliminating the need for an external CPU and Fast Ethernet port for
wired infrastructure connectivity. Together, the Libertas 88W8000 and 88W8500 chipset supports IEEE 802.11b
data rates of 1, 2, 5.5 and 11 Mbps, as well as a proprietary data rate of 22 Mbps. The 88W8000 and 88W8500
chipset provides an optimal solution for access points as well as wireless home gateway applications.
¨
Libertas
a
88W8000 and 88W8500 Wireless LAN (WLAN) chipset comprises the worlds most integrated
88W8000 FEATURES
￥
2.4 GHz ISM Band Radio
￥
Integration of all RF to analog baseband transmit and
receive functionalities
￥
On-chip power ampliTer with 20 dBm output power at the
antenna connector
￥
On-chip power ampliTer is programmable from 0 dBm to 20 dBm
￥
Integrated power loop control
￥
2x higher receiver sensitivity
￥
Programmable frequency synthesizers with integrated
VCOs and I/Q generation
BENEFITS
￥
One single chip supports all RF to analog baseband functions of the
popular 802.11b standard
￥
Reduces BOM cost, simpliTes board layout and provides smaller
form factor
￥
Reduces cost and increases range
￥
Allows transmit power control to be implemented for power savings
and extended battery life for host system
￥
Stabilizes power ampliTer output at user designated values across
temperature, voltage supply and semiconductor variations
￥
Improves detection of weak signals and increases range
￥
Provide for longer range in terms of adaptive gain adjustments
for best signal reception
Libertas
Wireless LAN 802.11b Access Point Chipset
88W8000 and 88W8500
Fig 1. Libertas WLAN 802.11b Access Point Chipset (88W8000 and 88W8500) Block Diagram
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 88W8000 | Wireless LAN 802.11b Access Point Chipset |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 88W8510/88W8510H | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:802.11g(b) Access Point/Gateway Solutions: The Libertas? 88W8510/8510H and 88W8000G Chipset |
| 88W8510-A7-BAN-C000 | 制造商:Marvell 功能描述: |
| 88W8510EB2BAN1C000 | 制造商:Marvell 功能描述:802.11A/B/G MAC/BASEBAND SOC VOIP W ATA AND UR SOC. - Trays |
| 88W8510HB2-BAN1C000 | 制造商:Marvell 功能描述:802.11A/B/G MAC/BASEBAND SOC LEAD-FREE (ROUTER/ GATEWAY) - Trays |
| 88W8510HB2-BAN-C000 | 制造商:Marvell 功能描述:802.11A/B/G MAC/BASEBAND SOC (ROUTER/ GATEWAY) - Trays |
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