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HFA3824AIV 参数 Datasheet PDF下载

HFA3824AIV图片预览
型号: HFA3824AIV
PDF下载: 下载PDF文件 查看货源
内容描述: 直接序列扩频基带处理器 [Direct Sequence Spread Spectrum Baseband Processor]
分类和应用:
文件页数/大小: 40 页 / 272 K
品牌: INTERSIL [ INTERSIL CORPORATION ]
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HFA3824A
Data Sheet
August 1998
File Number
4459.2
Direct Sequence Spread Spectrum
Baseband Processor
The Intersil HFA3824A Direct
Sequence (DSSS) baseband
processor is part of the PRISM™
2.4GHz radio chipset, and contains all
the functions necessary for a full or
half duplex packet baseband transceiver.
Features
• Complete DSSS Baseband Processor
• High Data Rate. . . . . . . . . . . . . . . . . . . . . . .up to 4 MBPS
• Processing Gain . . . . . . . . . . . . . . . . . . . . . . . . up to 12dB
• Programmable PN Code . . . . . . . . . . . . . . . . up to 16 Bits
• Ultra Small Package . . . . . . . . . . . . . . . . . . . . 7 x 7 x 1mm
• Single Supply Operation (44MHz Max) . . . . . 2.7V to 5.5V
• Modulation Method. . . . . . . . . . . . . . . . DBPSK or DQPSK
• Supports Full or Half Duplex Operations
• On-Chip A/D Converters for I/Q Data (3-Bit, 44 MSPS)
and RSSI (6-Bit, 2 MSPS)
• Backward Compatible with HSP3824
• Programmable Rotation I, Q Sense
The HFA3824A has on-board ADC’s for analog I and Q
inputs, for which the HFA3724/6 IF QMODEM is
recommended. Differential phase shift keying modulation
schemes DBPSK and DQPSK, with optional data scrambling
capability, are combined with a programmable PN sequence
of up to 16 bits. Built-in flexibility allows the HFA3824A to be
configured through a general purpose control bus, for a wide
range of applications. A Receive Signal Strength Indicator
(RSSI) monitoring function with on-board 6-bit 2 MSPS ADC
provides Clear Channel Assessment (CCA) to avoid data
collisions and optimize network throughput. The HFA3824A
is housed in a thin plastic quad flat package (TQFP) suitable
for PCMCIA board applications.
Applications
• Systems Targeting IEEE802.11 Standard
• DSSS PCMCIA Wireless Transceiver
• Spread Spectrum WLAN RF Modems
• TDMA Packet Protocol Radios
• Part 15 Compliant Radio Links
• Portable Bar Code Scanners/POS Terminal
• Portable PDA/Notebook Computer
• Wireless Digital Audio
• Wireless Digital Video
• PCN/Wireless PBX
Ordering Information
PART NO.
HFA3824AIV
HFA3824AIV96
TEMP.
RANGE (
o
C)
-40 to 85
-40 to 85
PKG. TYPE
48 Ld TQFP
Tape and Reel
PKG. NO.
Q48.7x7
Pinout
HFA3824A (TQFP)
TEST7
TEST6
TEST5
TEST4
TEST3
TEST2
TEST1
TEST0
I
OUT
Q
OUT
V
DD
GND
Simplified Block Diagram
I
IN
DE-SPREADER
3-BIT
A/D
TEST_CK
TX_PE
TXD
TXCLK
TX_RDY
GND
V
DD
R/W
CS
V
DDA
GND
I
IN
1
2
3
4
5
6
7
8
9
10
48 47 46 45 44 43 42 41 40 39 38 37
36
35
34
33
32
31
30
29
28
27
RXCLK
RXD
MD_RDY
RX_PE
CCA
GND
MCLK
V
DD
RESET
ANTSEL
A/D_CAL
SD
Q
IN
3-BIT
A/D
RSSI
6-BIT
A/D
CCA
PRO-
CESSOR
INTER-
FACE
CTRL
I
OUT
SPREADER
26
11
25
12
13 14 15 16 17 18 19 20 21 22 23 24
Q
OUT
DPSK
MOD.
GND
V
REFP
V
REFN
GND
V
DDA
2-99
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
©
Intersil Corporation 1999
PRISM® is a registered trademark of Intersil Corporation. PRISM logo is a trademark of Intersil Corporation.
SCLK
V
DDA
RSSI
V
DD
GND
Q
IN
AS
DATA TO NETWORK
PROCESSOR
DPSK
DEMOD.