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HFA3861IV

更新时间： 2024-11-23 22:51:19
品牌 Logo 应用领域
英特矽尔 - INTERSIL 电信集成电路
页数 文件大小 规格书
35页 220K
描述
Direct Sequence Spread Spectrum Baseband Processor

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HFA3861IV 数据手册

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HFA3861  
Data Sheet  
July 1999  
File Number 4699.1  
ADVANCE INFORMATION  
Direct Sequence Spread Spectrum  
Baseband Processor  
Features  
• Complete DSSS Baseband Processor  
™
The Intersil HFA3861 Direct Sequence  
• 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  
Spread Spectrum (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.  
The HFA3861 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 HFA3861 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 HFA3861 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 ~100ns  
• Supports Short Preamble Acquisition  
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 NO.  
HFA3861IV  
RANGE ( C)  
-40 to 85  
PKG. TYPE  
64 Ld TQFP  
PKG. NO.  
Q64.10x10  
HFA3861IV96  
-40 to 85  
Tape and Reel  
Pinout  
• Wireless Bridges  
Simplified Block Diagram  
6463 62 61 60 59 58 57 56 55 54 53 52 51 50 49  
48  
TEST4  
TEST3  
TEST2  
TEST1  
TEST0  
GNDd  
MCLK  
NC  
ANT-SEL  
ANT-SEL  
RX-RF_AGC  
GNDd  
1
2
3
4
5
6
7
8
ANT_SEL  
V
47  
46  
45  
44  
43  
42  
41  
40  
39  
38  
37  
36  
35  
34  
33  
DDD  
RX_RF_AGC  
RX_IF_DET  
1
SD  
SCLK  
R/W  
1
7
THRESH.  
DETECT  
AGC  
CTL  
CS  
RX_IF_AGC  
IF  
GNDd  
DAC  
V
DDD  
RX_I±  
6
6
GNDa  
RX_I+  
RX_I-  
9
I ADC  
10  
11  
12  
13  
14  
15  
16  
DEMOD  
I/O  
RX_Q±  
Q ADC  
V
V
DDD  
V
DDA  
REF  
DATA I/O  
GNDd  
RX_Q+  
RX_Q-  
GNDa  
TX_IF_AGC  
RX_IF_AGC  
COMPCAP1  
TX_I±  
6
6
I DAC  
V
REF  
TX_Q±  
MOD  
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32  
Q DAC  
TX_IF_AGC  
TX_AGC_IN  
7
6
TX  
TX  
ALC  
DAC  
TX  
ADC  
HFA 3861 BBP  
44MHz MCLK  
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 and PRISM logo are trademarks of Intersil Corporation.  
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