1. General description
The 74HC4046A; 74HCT4046A is a high-speed Si-gate CMOS device. It is specified in compliance
with JEDEC standard no 7A.
2. 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
3. Applications
• FM modulation and demodulation
• Frequency synthesis and multiplication
• Frequency discrimination
• Tone decoding
• Data synchronization and conditioning
• Voltage-to-frequency conversion
• Motor-speed control