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參數(shù)資料
| 型號： | HFA3860B |
| 廠商： | Intersil Corporation |
| 元件分類： | 基帶處理器 |
| 英文描述： | Direct Sequence Spread Spectrum Baseband Processor(直接序列擴頻基帶處理器) |
| 中文描述： | 直接序列擴頻基帶處理器（直接序列擴頻基帶處理器） |
| 文件頁數(shù)： | 3/40頁 |
| 文件大?。?/td> | 330K |
| 代理商： | HFA3860B |
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2-3
Typical Application Diagram
For additional information on the PRISM chip set, call
(321) 724-7800 to access Intersil’s AnswerFAX system.
When prompted, key in the four-digit document numbe
(File #) of the data sheets you wish to receive.
The four-digit file numbers are shown in the Typical
Application Diagram, and correspond to the appropriate
circuit.
QUAD IF MODULATOR
RFPA
HFA3925
(FILE# 4132)
HFA3724/6
(FILE# 4067)
DSSS BASEBAND PROCESSOR
D
C
HFA3860B
(FILE# 4594)
HFA3524
0
o
/90
o
VCO
A/D
A/D
MAC-PHY
INTERFACE
802.11
VCO
DUAL SYNTHESIZER
HFA3624
UP/DOWN
CONVERTER
(FILE# 4066)
A/D
(FILE# 4062)
M
U
X
M
U
X
DEMOD
MOD.
DE-
SPREAD
SPREAD
Q
I
HFA3424
(NOTE)
(FILE# 4131)
TYPICAL TRANSCEIVER APPLICATION CIRCUIT USING THE HFA3860B
NOTE: Required for systems targeting 802.11 specifications.
CCA
RXI
RXQ
RSSI
TXI
TXQ
÷
2
Pin Descriptions
NAME
PIN
TYPE I/O
DESCRIPTION
V
DDA
(Analog)
10, 18, 20
Power
DC power supply 2.7V - 3.6V (Not Hardwired Together On Chip).
V
DD
(Digital)
7, 21, 29, 42
Power
DC power supply 2.7 - 3.6V
GND
(Analog)
11, 15, 19
Ground
DC power supply 2.7 - 3.6V, ground (Not Hardwired Together On Chip).
GND
(Digital)
6, 22, 31, 41
Ground
DC power supply 2.7 - 3.6V, ground.
V
REFN
17
I
“Negative” voltage reference for A/D’s (I and Q) [Relative to V
REFP
]
V
REFP
16
I
“Positive” voltage reference for A/D’s (I, Q and RSSI)
I
IN
12
I
Analog input to the internal 3-bit A/D of the In-phase received data.
Q
IN
13
I
Analog input to the internal 3-bit A/D of the Quadrature received data.
ANTSEL
26
O
The antenna select signal changes state as the receiver switches from antenna to antenna during the
acquisition process in the antenna diversity mode. This is a complement for ANTSEL (pin 27) for
differential drive of antenna switches.
ANTSEL
27
O
The antenna select signal changes state as the receiver switches from antenna to antenna during the
acquisition process in the antenna diversity mode. This is a complement for ANTSEL (pin 26) for
differential drive of antenna switches.
RSSI
14
I
Receive Signal Strength Indicator Analog input.
HFA3860B
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HFA3860 | 3.3V 288-mc CPLD |
| HFA3860IV | 11 Mbps Direct Sequence Spread Spectrum Baseband Processor |
| HFA3860IV96 | 11 Mbps Direct Sequence Spread Spectrum Baseband Processor |
| HFA3861A | Direct Sequence Spread Spectrum Baseband Processor(直接序列擴頻基帶處理器) |
| HFA3861B | Direct Sequence Spread Spectrum Baseband Processor(直接序列擴譜基帶處理器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HFA3860BIV | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HFA3860BIV WAF | 制造商:Harris Corporation 功能描述: |
| HFA3860BIV96 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HFA3860IV | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Harris Corporation 功能描述: |
| HFA3860IV WAF | 制造商:Harris Corporation 功能描述: |
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