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