CD74HC4046AMT

高速CMOS逻辑锁相环与VCO High-Speed CMOS Logic Phase-Locked Loop with VCO

Description

The ’HC4046A and ’HCT4046A are high-speed silicon-gate CMOS devices that are pin compatible with the CD4046B of the “4000B” series. They are specified in compliance with JEDEC standard number 7.

Features

• Operating Frequency Range

\- Up to 18MHz Typ at VCC= 5V

\- Minimum Center Frequency of 12MHz at VCC= 4.5V

• Choice of Three Phase Comparators

\- EXCLUSIVE-OR

\- Edge-Triggered JK Flip-Flop

\- Edge-Triggered RS Flip-Flop

• Excellent VCO Frequency Linearity

• VCO-Inhibit Control for ON/OFF Keying and for Low Standby Power Consumption

• Minimal Frequency Drift

• Operating Power Supply Voltage Range

\- VCO Section . . . . . . . . . . . . . . . . . . . . . . . . . . 3V to 6V

\- Digital Section . . . . . . . . . . . . . . . . . . . . . . . . 2V to 6V

• Fanout Over Temperature Range

\- Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads

\- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads

• Wide Operating Temperature Range . . . -55oC to 125oC

• Balanced Propagation Delay and Transition Times

• Significant Power Reduction Compared to LSTTL Logic ICs

• HC Types

\- 2V to 6V Operation

\- High Noise Immunity: NIL= 30%, NIH= 30% of VCC at VCC= 5V

• HCT Types

\- 4.5V to 5.5V Operation

\- Direct LSTTL Input Logic Compatibility, VIL= 0.8V Max, VIH = 2V Min

\- CMOS Input Compatibility, Il ≤1µA at VOL, VOH

Applications

• FM Modulation and Demodulation

• Frequency Synthesis and Multiplication

• Frequency Discrimination

• Tone Decoding

• Data Synchronization and Conditioning

• Voltage-to-Frequency Conversion

• Motor-Speed Control