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.