Description
The CD4046B phase locked loop consists of two phase comparators, a voltage-controlled oscillator (VCO), source follower and zener diode. The comparators have a common signal input amplifier and common comparator input. The zener diode is used for power supply regulation if required. Applications include FM and FSK modulation / demodulation, frequency synthesis and multiplication, frequency discrimination, tone decoding, data synchronization and conditioning, voltage-to-frequency conversion and motor speed control.

FEATUREs:
◾ Choice of two Phase Comparators:
   - Exclusive Or Gate, duty cycle limited
   - Rising edge switching, duty cycle unlimited
◾ Buffered outputs compatible with MHTL and Low
   power TTL
◾ VCO inhibit control for ON-OFF keying and ultralow standby power consumption
◾ Source-follower output of VCO control input
◾ Integrated zener diode to assist supply regulation
◾ Supply voltage range: 3V to 18V
◾ Symmetrical output characteristics