General Description

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.

Features

• Operating voltage: 2.7V~6V

• Extremely low power consumption current

- ICC= 0A (typ.) in battery-saving mode

- ICC= 8.5mA (typ.) in standby mode

- ICC= 13.5mA (typ.) for communication

• Built-in IF decoder, compander and PLL

• IF decoder

- 1st/2nd Mixers, RX VCO

- RSSI quadrature detector, IF AMP

- Noise detector

• Compander

- Expander, Compressor, Limiter

- Receive AMP, MIC AMP, PRE AMP

• PLL

- RX PLL, TX PLL

- Local oscillator

- Data latch control

- Unlock detector

• Four threshold variable battery alarms