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参数资料
| 型号： | HFA3824AIV |
| 厂商： | INTERSIL CORP |
| 元件分类： | 无绳电话/电话 |
| 英文描述： | Direct Sequence Spread Spectrum Baseband Processor |
| 中文描述： | TELECOM, CELLULAR, BASEBAND CIRCUIT, PQFP48 |
| 封装： | 7 X 7 MM, PLASTIC, TQFP-48 |
| 文件页数： | 30/40页 |
| 文件大小： | 271K |
| 代理商： | HFA3824AIV |
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2-128
Bit 2
This control bit selects the active level of the transmit ready (TX_RDY) output pin 5.
Logic 1 = TX_RDY active 0.
Logic 0 = TX_RDY active 1.
Bit 1
Reserved (must be set to “0”).
Bit 0
This control bit selects the phase of the transmit output clock (TXCLK) pin 4.
Logic 1 = Inverted TXCLK.
Logic 0 = NON-Inverted TXCLK
CONFIGURATION REGISTER 9 ADDRESS (24h) I/O DEFINITION REGISTER (Continued)
CONFIGURATION REGISTER 10 ADDRESS (28h) RSSI VALUE REGISTER
Bits 0 - 7
This is a read only register reporting the value of the RSSI analog input signal from the on chip 6-bit ADC. This register is
updated at (chip rate/11). Bits 7 and 6 are not used and set to Logic 0.
Example:
BITS (0:7)
RANGE
RSSI_STAT
7 6 5 4 3 2 1 0
0 0 0 0 0 0 0 0
00h (Min)
0 0 1 1 1 1 1 1
3Fh (Max)
CONFIGURATION REGISTER 11 ADDRESS (2ch) A/D CAL POS REGISTER
Bits 0 - 7
This 8-bit control register contains a binary value used for positive increment for the level adjusting circuit of the A/D refer-
ence. The larger the step the faster the level reaches saturation.
CONFIGURATION REGISTER 12 ADDRESS (30h) A/D CAL NEG REGISTER
Bits 0 - 7
This 8-bit control register contains a binary value used for the negative increment for the level adjusting reference of the A/D.
The number is programmed as 256 - the value wanted since it is a negative number.
CONFIGURATION REGISTER 13 ADDRESS (34h) TX SPREAD SEQUENCE (HIGH)
Bits 0 - 7
This 8-bit register is programmed with the upper byte of the transmit spreading code. This code is used for both the I and Q
signalling paths of the transmitter. This register combined with the lower byte TX_SPREAD(LOW) generates a transmit
spreading code programmable up to 16 bits. Code lengths permitted are 11, 13, 15, and 16. Right justified MSB first.
SOME SUITABLE CODES
LENGTH
CR13
CR14
TYPE
11
05
B8
Barker
13
1F
35
Barker
15
1F
35
Modified Barker
16
1F
35
Modified Barker
CONFIGURATION REGISTER 14 ADDRESS (38h) TX SPREAD SEQUENCE (LOW)
Bits 0 - 7
This 8-bit register is programmed with the lower byte of the transmit spreading code. This code is used for the I and Q sig-
nalling paths of the transmitter. This register combined with the higher byte TX_SPREAD(HIGH) generates the transmit
spreading code programmable up to 16 bits.
The example below illustrates the bit positioning for one of the 11-bit Barker PN codes. Example:
Transmit Spreading Code 11-Bit Barker Word Right Justified MSB First.
MSB
LSB
TX_SPREAD(HIGH)
15 14 13 12 11 10 9 8
TX_SPREAD(LOW)
7 6 5 4 3 2 1 0
11-bit Barker code
X
X
X X X 1 0 1
1 0 1 1 1 0 0 0
CONFIGURATION REGISTER 15 ADDRESS (3Ch) SCRAMBLER SEED
Bits 0 - 7
This register contains the 7-bit (seed) value for the transmit scrambler which is used to preset the transmit scrambler to a
known starting state. The MSB bit position (7) is unused and must be programmed to a Logic 0.
HFA3824A
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PDF描述 |
|---|---|
| HFA3824A | Direct Sequence Spread Spectrum Baseband Processor |
| HFA3842B | PCMCIA/USB Wireless LAN Medium Access Controller |
| HFA3842BIN | PCMCIA/USB Wireless LAN Medium Access Controller |
| HFA3842BIN-TK | PCMCIA/USB Wireless LAN Medium Access Controller |
| HFA3842IN96 | Wireless LAN Medium Access Controller |
相关代理商/技术参数 |
参数描述 |
|---|---|
| HFA3824AIV WAF | 制造商:Harris Corporation 功能描述: |
| HFA3824AIV96 | 制造商:Rochester Electronics LLC 功能描述:BASEBAND PROCESSOR - Bulk |
| HFA3824EVAL | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HFA3824IV | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| HFA3824IV96 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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