HCT9046中文資料飛利浦?jǐn)?shù)據(jù)手冊(cè)PDF規(guī)格書

GENERAL DESCRIPTION

The 74HCT9046A is a high-speed Si-gate CMOS device. It is specified in compliance with “JEDEC standard no. 7A”.

FEATURES

? Low power consumption

? Centre frequency up to 17 MHz (typ.) at VCC = 5.5 V

? Choice of two phase comparators(1):

– EXCLUSIVE-OR (PC1)

– Edge-triggered JK flip-flop (PC2)

? No dead zone of PC2

? Charge pump output on PC2, whose current is set by an external resistor Rb

? Centre frequency tolerance ±10

? Excellent voltage-controlled-oscillator (VCO) linearity

? Low frequency drift with supply voltage and temperature variations

? On chip bandgap reference

? Glitch free operation of VCO, even at very low frequencies

? Inhibit control for ON/OFF keying and for low standby power consumption

? Operation power supply voltage range 4.5 to 5.5 V

? Zero voltage offset due to op-amp buffering

? Output capability: standard

? ICC category: MSI.

APPLICATIONS

? FM modulation and demodulation where a small centre frequency tolerance is essential

? Frequency synthesis and multiplication where a low jitter is required (e.g. Video picture-in-picture)

? Frequency discrimination

? Tone decoding

? Data synchronization and conditioning

? Voltage-to-frequency conversion

? Motor-speed control.