MK3754DLF

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Type:	PLL Clock Synthesizer, VCXO
PLL:	Yes
Input:	Crystal
Output:	CMOS
Number of Circuits:	1
Ratio - Input:Output:	2:1
Differential - Input:Output:	No/No
Frequency - Max:	54MHz
Divider/Multiplier:	No/No
Voltage - Supply:	3.15 V ~ 3.45 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	MK3754

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The MK3754DLF is a versatile programmable clock generator. It can operate in Programmable Crystal Oscillator (PXO), crystal oscillator (XO), voltage controlled oscillator (VCXO), and programmable frequency synthesizer (PFS) modes. The ICs two on-chip PLLs and support for both integer-N and fractional-N frequency synthesis make it ideal for a wide range of timing applications, such as portable communications, DSL, ATM and switch fabric, portable HDTV and so on. This article will discuss the application field and working principle of MK3754DLF clock generator. The application field of MK3754DLF mainly involves portable communications, DSL, ATM and switch fabric, portable HDTV and so on. The IC solves the challenges of system design and meets the needs for small size and low power consumption. It also provides high level frequency synthesizing performance for RF products. Therefore, it can be widely used in wireless communication LNA, WiFi modules, PC Card, mini PC, PDA, GSM and 3G applications. The working principle of the MK3754DLF is based on PLL and frequency synthesis. When used in PFS mode, it has two independent PLLs. The first PLL consists of a phase- frequency detector, low pass filter, voltage-controlled oscillator (VCO), and a programmable divider. The second PLL consists of a phase-frequency detector, low pass filter, a fractional divider, a VCO and a programmable divider. The output frequency of each PLL is adjusted by using its feedback loop parameters, including the programmable divider, the phase-frequency detector and the VCO gain.The MK3754DLF also offers different output formats such as High Speed Serial (HSS) and Low Speed Serial (LSS) outputs. In addition, it supports up to 12 reference clocks and provides a programmable test clock output. With the support of on-chip dual-PLLs and frequency synthesis technology, the MK3754DLF can generate multiple output frequencies simultaneously, providing better users with a great degree of flexibility. In addition, the MK3754DLF has several system level features such as power management, temperature compensation, over-voltage protection, and a wide array of programmable options. It has a low standby current and low on-chip power consumption that make it ideal for applications with power limitation.To sum up, the MK3754DLF clock generator is widely applicable for various timing applications, such as portable communications, DSL, ATM and switch fabric, portable HDTV. With its versatile programmable frequencies and a wide range of system level features, it is a great choice for developers to design establish timing solutions, which is ideal for all kinds of electronic products that need precise clock synchronization.

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