Functions
• On-chip PLL for transmission/reception.
• On-chip digital unlock detector. (only PLL for transmission)
• 5.0kHz/4.4kHz output pins for guard tone.
• Standby function.
• Pull-down resistance at CH select pins (D1 to D4).
LC7150 : With (for mechanical SW)
LC7151 : Without (for µCOM)