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.

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