General description
The 74HC4046A; 74HCT4046A is a high-speed Si-gate CMOS device. It is specified in compliance with JEDEC standard no 7A.

FEATUREs and benefits
• Low power consumption
• VCO-Inhibit control for ON/OFF keying and for low standby power consumption
• Center frequency up to 17 MHz (typical) at VCC = 4.5 V
• Choice of three phase comparators:
    • PC1: EXCLUSIVE-OR
    • PC2: Edge-triggered J-K flip-flop
    • PC3: Edge-triggered RS flip-flop
• Excellent Voltage Controlled Oscillator (VCO) linearity
• Low frequency drift with supply voltage and temperature variations
• Operating power supply voltage range:
    • VCO section 3.0 V to 6.0 V
    • Digital section 2.0 V to 6.0 V
• Zero voltage offset due to operational amplifier buffering
• ESD protection:
    • HBM JESD22-A114F exceeds 2000 V
    • MM JESD22-A115-A exceeds 200 V

APPLICATIONs
• FM modulation and demodulation
• Frequency synthesis and multiplication
• Frequency discrimination
• Tone decoding
• Data synchronization and conditioning
• Voltage-to-frequency conversion
• Motor-speed control