HT9015

The HT9015 is an RF single chip for cordless phone systems. Internally these are three major parts, a PLL, an IF decoder and a compander. The PLL provides radio channel selection for either the transmitter or receiver. Frequency locking status of the selected channel can be monitored by a control register.

The IF decoder provides two frequency down converters that let high frequency signals pass through a mixer and local oscillator to be lowered for frequency even base band signals. HT9015 also provides an RSSI (receiver signal strength indicator) function to detect the IF output signal strength and built-in noise detector for S/N quality.

The HT9015 compander provides better S/N ratio for audio signal processing.

The HT9015 has a wide-range applications in FM/FSK, Transmitting/Receiving of VHF bandwidth including cordless phone, narrow band voice and data transceiver systems.

The most significant advantage of the HT9015  is in the reduction of many external components making it well suited for cordless phone baseset, handset radio section.