CD74HC7046AE

Series:	74HC
Packaging:	Tube
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Phase Lock Loop (PLL)
PLL:	Yes
Input:	CMOS
Output:	CMOS
Number of Circuits:	1
Ratio - Input:Output:	1:2
Differential - Input:Output:	No/No
Frequency - Max:	38MHz
Divider/Multiplier:	No/No
Voltage - Supply:	2 V ~ 6 V
Operating Temperature:	-55°C ~ 125°C
Mounting Type:	Through Hole
Package / Case:	16-DIP (0.300", 7.62mm)
Supplier Device Package:	16-PDIP
Base Part Number:	74HC7046

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The CD74HC7046A is a high-frequency frequency synthesizer made of bipolar technology, manufactured by IDT (Integrated Device Technology). This product is part of their IDT’s ClockWorks™ Family product line. It combines a high-performance PLL (Phase Locked Loop) and an adjustable frequency/phase synthesizer. The CD74HC7046A is designed to provide multiple-output frequencies from a single clock input. It is optimized for use in battery-powered applications and offers low power consumption while providing the flexibility of a multi-output frequency source. The CD74HC7046A can generate up to six output frequencies, three of which are adjustable. The six outputs include: 4MHz, 9MHz, 12MHz, 24MHz, 32MHz, and 48MHz. The outputs are adjustable over two octaves each and can be tuned over an additional frequency range. The control signals are provided via two pins which are accessible through an external adjustment resistor. The external adjustment resistor also allows for fine tuning of the frequency and phase of the output signals. In addition, the module provides an external input for programming of the output frequencies.The working principle of the CD74HC7046A is based on a phase locked loop (PLL). A PLL is an electronic circuit that uses feedback to lock the output of the circuit to the input frequency. In this case, the frequency of the output signal is synthesized from the input frequency by the frequency control circuitry. The frequency is adjusted by the phase detector and loop filter, which adjust the voltage-controlled oscillator (VCO) frequency. The output of the VCO is compared to the fixed reference frequency and any discrepancies are used to adjust the frequency of the VCO, thus locking the output frequency to the reference frequency.The primary application field of the CD74HC7046A is in battery-powered applications, such as those found in portable communication systems, radio and radar systems, and the like. It is ideal for these applications due to its low power consumption and ability to produce multiple-output frequencies. In addition, it can be used in other low-power, high-frequency applications, such as digital cameras, microcontrollers, and automotive applications. As a frequency and phase synthesizer, the CD74HC7046A offers a wide range of flexibility. By providing an external adjustment resistor, it is possible to tune the output frequencies over an additional frequency range and adjust the phase of the outputs. This feature is beneficial in applications which require precise control over the output frequencies, such as clock synchronization and spread spectrum communications.Overall, the CD74HC7046A is an advanced frequency synthesizer designed to provide multiple output frequencies from a single clock input. It is optimized for low power consumption, making it ideal for portable applications, and offers the flexibility of an adjustable frequency and phase synthesizer. With its wide range of applications, the CD74HC7046A is a great choice for a variety of frequency and phase synthesis needs.

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