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HFA3861AIN

更新时间： 2024-11-23 22:51:19
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英特矽尔 - INTERSIL /
页数 文件大小 规格书
37页 434K
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Direct Sequence Spread Spectrum Baseband Processo

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HFA3861AIN 数据手册

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HFA3861A  
®
November 2001  
File Number 4776.3  
ADVANCE INFO
Direct Sequence Spread Spectrum  
Baseband Processor  
Features  
• Complete DSSS Baseband Processor  
The Intersil HFA3861A Direct  
Sequence Spread Spectrum (DSSS)  
baseband processor is part of the  
• Processing Gain. . . . . . . . . . . . . . . . . . . . .FCC Compliant  
• Programmable Data Rate . . . . . . . 1, 2, 5.5, and 11Mbps  
• Ultra Small Package. . . . . . . . . . . . . . . . . . . . . 10 x 10mm  
• Single Supply Operation (44MHz Max) . . . . . 2.7V to 3.6V  
• Modulation Methods. . . . . . . . DBPSK, DQPSK, and CCK  
• Supports Full or Half Duplex Operations  
PRISM® 2.4GHz radio chipset, and contains all the  
functions necessary for a full or half duplex packet baseband  
transceiver.  
The HFA3861A has on-board A/D’s for analog I and Q inputs  
and outputs, for which the HFA3783 IF QMODEM is  
recommended. Differential phase shift keying modulation  
schemes DBPSK and DQPSK, with data scrambling  
capability, are available along with Complementary Code  
Keying to provide a variety of data rates. Built-in flexibility  
allows the HFA3861A to be configured through a general  
purpose control bus, for a range of applications. Both  
Receive and Transmit AGC functions with 7-bit AGC control  
obtain maximum performance in the analog portions of the  
transceiver. The HFA3861A is housed in a thin plastic quad  
flat package (TQFP) suitable for PCMCIA board  
applications.  
• On-Chip A/D and D/A Converters for I/Q Data (6-Bit,  
22MSPS), AGC, and Adaptive Power Control (7-Bit)  
• Targeted for Multipath Delay Spreads ~50ns  
• Supports Short Preamble Acquisition  
• Supports Antenna Diversity  
Applications  
• Enterprise WLAN Systems  
• Systems Targeting IEEE 802.11 Standard  
• DSSS PCMCIA Wireless Transceiver  
• Spread Spectrum WLAN RF Modems  
• TDMA Packet Protocol Radios  
• Part 15 Compliant Radio Links  
• Portable PDA/Notebook Computer  
• Wireless Digital Audio, Video, Multimedia  
• PCN/Wireless PBX  
Ordering Information  
TEMP.  
o
PART NUMBER  
HFA3861AIN  
RANGE ( C)  
-40 to 85  
PACKAGE  
64 Ld TQFP  
PKG. NO.  
Q64.10x10  
HFA3861AIN96  
-40 to 85  
Tape and Reel  
• Wireless Bridges  
Pinout  
• Antenna Diversity Supported  
Simplified Block Diagram  
6463 62 61 60 59 58 57 56 55 54 53 52 51 50 49  
48  
ANT_SEL  
TEST4  
TEST3  
TEST2  
TEST1  
TEST0  
GNDd  
MCLK  
NC  
ANT-SEL  
ANT-SEL  
GNDd  
1
2
3
4
5
6
7
8
RX_RF_AGC  
RX_IF_DET  
1
V
47  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
36  
35  
34  
33  
DDD  
1
7
SD  
SCLK  
R/W  
CS  
GNDd  
THRESH.  
DETECT  
AGC  
CTL  
RX_IF_AGC  
IF  
DAC  
RX_I±  
6
6
I ADC  
V
DDD  
DEMOD  
I/O  
RX_Q±  
GNDa  
RX_I+  
RX_I-  
9
Q ADC  
10  
11  
12  
13  
14  
15  
16  
V
REF  
RX-RF_AGC  
DATA I/O  
V
V
DDD  
DDA  
GNDd  
RX_Q+  
RX_Q-  
GNDa  
TX_I±  
6
6
TX_IF_AGC  
RX_IF_AGC  
COMPCAP1  
I DAC  
TX_Q±  
MOD  
V
Q DAC  
REF  
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32  
TX_IF_AGC  
TX_AGC_IN  
7
6
TX  
TX  
ALC  
DAC  
TX  
ADC  
HFA 3861A BBP  
44MHz MCLK  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.  
Copyright © Intersil Americas Inc. 2002. All Rights Reserved  
1
PRISM® is a registered trademark of Intersil Corporation. PRISM and design is a trademark of Intersil Corporation.  
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