器件名称: 74HCT7046A
功能描述: Phase-locked-loop with lock detector
文件大小: 490.12KB 共38页
简 介:INTEGRATED CIRCUITS
DATA SHEET
For a complete data sheet, please also download:
The IC06 74HC/HCT/HCU/HCMOS Logic Family Specifications The IC06 74HC/HCT/HCU/HCMOS Logic Package Information The IC06 74HC/HCT/HCU/HCMOS Logic Package Outlines
74HC/HCT7046A Phase-locked-loop with lock detector
Product specication File under Integrated Circuits, IC06 December 1990
Philips Semiconductors
Product specication
Phase-locked-loop with lock detector
FEATURES Low power consumption Centre frequency up to 17 MHz (typ.) at VCC = 4.5 V Choice of two phase comparators: EXCLUSIVE-OR; edge-triggered JK flip-flop; Excellent VCO frequency linearity VCO-inhibit control for ON/OFF keying and for low standby power consumption Minimal frequency drift Operation power supply voltage range: VCO section 3.0 to 6.0 V digital section 2.0 to 6.0 V Zero voltage offset due to op-amp buffering Output capability: standard ICC category: MSI GENERAL DESCRIPTION The 74HC/HCT7046 are high-speed Si-gate CMOS devices and are specified in compliance with JEDEC standard no. 7. The 74HC/HCT7046 are phase-locked-loop circuits that comprise a linear voltage-controlled oscillator (VCO) and two different phase comparators (PC1 and PC2) with a common signal input amplifier and a common comparator input. A lock detector is provided and this gives a HIGH level at pin 1 (LD) when the PLL is locked. The lock detector capacitor must be connected between pin 15 (CLD) and pin 8 (GND). The value of the CLD capacit……
