- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄371807 > HFA3861AIN (INTERSIL CORP) 288 MACROCELL 3.3 VOLT ISP CPLD PDF資料下載
參數(shù)資料
| 型號： | HFA3861AIN |
| 廠商： | INTERSIL CORP |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | 288 MACROCELL 3.3 VOLT ISP CPLD |
| 中文描述： | TELECOM, CELLULAR, BASEBAND CIRCUIT, PQFP64 |
| 封裝： | 10 X 10 MM, PLASTIC, MS-026ACD, TQFP-64 |
| 文件頁數(shù)： | 16/37頁 |
| 文件大?。?/td> | 440K |
| 代理商： | HFA3861AIN |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁當(dāng)前第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁
16
PN Correlators Description
There are two types of correlators in the HFA3861A
baseband processor. The first is a parallel matched
correlator that correlates for the Barker sequence used in
preamble, header, and PSK data modes. This PN correlator
is designed to handle BPSK spreading with carrier offsets up
to
±
50ppm and 11 chips per symbol. Since the spreading is
BPSK, the correlator is implemented with two real
correlators, one for the I and one for the Q Channel. The
same Barker sequence is always used for both I and Q
correlators.
These correlators are time invariant matched filters otherwise
known as parallel correlators. They use one sample per chip for
correlation although two samples per chip are processed. The
correlator despreads the samples from the chip rate back to the
original data rate giving 10.4dB processing gain for 11 chips per
bit. While despreading the desired signal, the correlator
spreads the energy of any non correlating interfering signal.
The second form of correlator is the correlator function used
for detection of the CCK modulation. For the CCK modes,
the correlation function uses a Fast Walsh Transform to
PREAMBLE/HEADER
CRC-16
GENERATOR
TX_AGC_IN (18)
V
REF
(16)
I
REF
(21)
ANTSEL (39)
(60) CCA
TX_DATA
SCRAMBLER
(58) TXD
P
(52) RXCLK
MODULATOR,
BARKER/CCK
TXI (23, 24)
TXQ (29, 30)
TIMING
GENERATOR
MCLK
(12, 17, 22, 31)
V
DD
(ANALOG)
(2, 8, 37, 57)
V
DD
(DIGITAL)
(9, 15, 20, 25, 28)
GND (ANALOG)
(1, 7, 36, 43, 56)
GND (DIGITAL)
(55) TXCLK
(59) TX_RDY
(62) TX_PE
ANTSEL (40)
(4) SCLK
(3) SD
(64) SDI
(5) R/W
(6) CS
S
P
T
P
(42)
MCLK
T
(45)
T
(44)
(46)
T
(47)
T
(48)
T
(49)
T
(50)
T
(51)
T
TEST PORT
FIGURE 11. DSSS BASEBAND PROCESSOR, TRANSMIT SECTION
TX AGC
CONTROL
TRANSMIT
FILTER
O
T
O
DAC
DAC
TX
STATE
CONTROL
TX_IF_AGC (35)
6-BIT
DAC
REGISTER
6-BIT
ADC
HFA3861A
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HFA3863IN | Direct Sequence Spread Spectrum Baseband Processor |
| HFA3863IN96 | Direct Sequence Spread Spectrum Baseband Processor |
| HFA3863 | Direct Sequence Spread Spectrum Baseband Processor(直接序列擴(kuò)譜基帶處理器) |
| HFA3983IV96 | 2.4GHz Power Amplifier and Detector |
| HFA3983 | 2.4GHz Power Amplifier and Detector(2.4GHz 功率放大器探測器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HFA3861AIN96 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Direct Sequence Spread Spectrum Baseband Processo |
| HFA3861B | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Direct Sequence Spread Spectrum Baseband Processor |
| HFA3861BIN | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Direct Sequence Spread Spectrum Baseband Processor |
| HFA3861BIN96 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Direct Sequence Spread Spectrum Baseband Processor |
| HFA3861IV | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:Direct Sequence Spread Spectrum Baseband Processor |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。