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參數(shù)資料
| 型號： | AT48802 |
| 廠商： | Atmel Corp. |
| 英文描述： | Spread- Spectrum Signal Processor Integrated Circuit |
| 中文描述： | 擴(kuò)頻信號處理器集成電路 |
| 文件頁數(shù)： | 1/23頁 |
| 文件大?。?/td> | 218K |
| 代理商： | AT48802 |
Spread-
Spectrum
Signal
Processor
Integrated
Circuit
Preliminary
Features
Two Independent PN (Pseudo-Random Noise) Generators
Programmable R7 (128) to R13 (8,192) PN Sequence Lengths
Programmable Tau-Dither Amplitude
Programmable PN Phase Adjustment to 1/16 Chip
Correlation Acquisition Interface
Programming Register Control
Microcontroller Compatible Bus Interface
Patent-Pending Frequency Diversity
Low Speed Link Data Path for Supervisory and Setup Functions
Description
The AT48802 Spread-Spectrum Signal Processor (SSSP) chip from Atmel handles
all PN code generation, synchronization, and handshaking required for either station
(handset or base station) of a time division duplex direct sequence spread-spectrum
cordless telephone. The AT48802 supports RF spreading and despreading for the
best rejection of interference. In conjunction with a single-chip microcontroller, the
circuit performs the following functions:
Generates a pseudo-random sequence for spreading the transmitted signal.
Generates a pseudo-random sequence for despreading in the receiver.
Generates a sliding phase PN for acquiring synchronization with an incoming
signal.
Controls receive signal strength measurement timing for correlation peak
detection.
Operates a tau-dither tracking loop, with adaptive threshold, to maintain
synchronization with the incoming signal.
Controls transmit keying antenna switching for time-division duplexing.
(continued)
0624A
64 Lead PQFP
Pin Configuration
AT48802
2-1
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AT48802-16QC | Spread- Spectrum Signal Processor Integrated Circuit |
| AT48802-16QI | Spread- Spectrum Signal Processor Integrated Circuit |
| AT48810 | 900 MHz Spread- Spectrum RF Module |
| AT48810-CB | 900 MHz Spread- Spectrum RF Module |
| AT48810-CH | 900 MHz Spread- Spectrum RF Module |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AT48802-16QC | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Spread- Spectrum Signal Processor Integrated Circuit |
| AT48802-16QI | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Spread- Spectrum Signal Processor Integrated Circuit |
| AT48810 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:900 MHz Spread- Spectrum RF Module |
| AT48810-CB | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:900 MHz Spread- Spectrum RF Module |
| AT48810-CH | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:900 MHz Spread- Spectrum RF Module |
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