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參數(shù)資料
| 型號： | 20575 |
| 英文描述： | Wireless LAN DSSS PC Card Reference Design Application ? 220KB (PDF) |
| 中文描述： | 無線局域網(wǎng)擴(kuò)頻PC卡參考設(shè)計中的應(yīng)用？欺詐郵件（PDF格式） |
| 文件頁數(shù)： | 9/25頁 |
| 文件大?。?/td> | 220K |
| 代理商： | 20575 |
8
AMD
Am79C930
Pin Name
TXCMD
Pin
No.
126
I/O
O
AMD Am79C930 Pin
Function
Signals beginning of
Am79C930 transmission
sequence
802.11 HARRIS DS PHY PC
CARD System Connections
HFA3724.LPFRXPE (Pin 21)
HFA3724.MODRXPE (Pin 43)
HFA3724.LIM1PE (Pin 74)
HFA3724.LIM2PE Pin 54)
HFA3624.RXPE (Pin 28)
NC
I/O
802.11 HARRIS DS
PHY PC CARD
System Function
IF/RF modulator/
demodulator RX
enable inputs, IF/RF
converter RX enable
input
I
FDET
128
O
Indicates that UW has
been located
Timing is generated by
state machine per API
programming
Begins second stage of
Am79C930 transmission
power ramp sequence
TXPE
129
O
NC
TXMOD
131
O
HSP3824.TX_PE,
HFA3925.PIN11 (Pin 11)
HFA3925.PIN18 (Pin 18),
HFA3925.PIN23 (Pin 23)
I
Standby mode for TX
circuitry - also initiates
TX state machine and
freezes antenna
selection for
transmission, and
enables power to
transmitter
Filter select control
ANTSLT
132
O
Effectively a DC level set
by an API module
HFA3724.LPFSEL0 (Pin 17)
I
PWRDWN
ADIN1
ADIN2
ADREF
AVDD
VDD5
VDDU2
ANTSLT
133
134
135
137
138
139
140
141
O
I
I
I
I
I
I
O
NC
Ground
Ground
Ground
5-V supply
5-V supply
3.5-V supply
HFA3724.LPFSEL1 (Pin 16)
5-V supply (VCC)
5-V supply (VCC)
3.5-V supply (VCC)
Effectively a DC level set
by an API module
Timing is generated by
state machine per API
programming
I
Filter select control
TXCMD
142
O
HFA3624.TXPE (Pin 15)
HFA3724.LPFTXPE (Pin 22)
HFA3724.MODTXPE (Pin 41)
I
TX enables for RF/IF
converter and
modulator/
demodulator
TXDATA
LLOCKE
143
144
O
O
Inverted TX data output
API will determine signal
timing
NC
NC
Table 1. Am79C930 Pin Connections
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