PL685-P8-038OC

Differential - Input:Output:	No/No
Base Part Number:	PL685
Supplier Device Package:	16-TSSOP
Package / Case:	16-TSSOP (0.173", 4.40mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	0°C ~ 70°C
Voltage - Supply:	2.97 V ~ 3.63 V
Divider/Multiplier:	Yes/Yes
Frequency - Max:	112.5MHz
Series:	--
Ratio - Input:Output:	1:2
Number of Circuits:	1
Output:	PECL
Input:	LVPECL, Crystal
PLL:	Yes with Bypass
Part Status:	Discontinued at Digi-Key
Packaging:	Tube

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PL685-P8-038OC Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers

PL685-P8-038OC is an advanced clock generator and phase-locked loop (PLL) device that is used to generate synchronized clock signals with frequency and phase accuracy. This device is a highly integrated module which is primarily used in audio, video, and telecom applications, mainly in telecommunications, satellite navigation, and data processing systems, in order to generate accurate and stable clock signals.

Applications

PL685-P8-038OC provides high-performance clock oscillator, clock multiplier, and phase locked loop functionalities, which make it a great choice for any applications requiring reliable, high precision clock synchronization. The most common applications for the device include data communications, telecommunication infrastructure, consumer audio/video applications, automotive applications, and various other high-speed optics and network applications.

Working Principle

The PL685-P8-038OC utilizes a combination of both crystal and voltage-controlled oscillators (VCOs) to produce numerically-controlled oscillator (NCO) or synthesizer output. The device also provides a number of different clock-generation modes, including flexible programmable output frequency, dual-frequency output, adjustable output voltage level and adjustable output current limit.At the heart of the PL685-P8-038OC is an integrated VCO that can generate a wide range of clock frequencies. This VCO is linked to a high-performance phase-locked loop (PLL) circuit, which uses an analog feedback circuit to control the VCO frequency and track the reference frequency. The device also employs digital control logic to enable a variety of control modes, such as integer- or fractional-N frequency synthesis and modulo-N frequency pre-scaling.

Output Clock Signals

The PL685-P8-038OC has two independent output clocks, both of which have separate voltage supplies and can be independently programmable. The output clocks are generated using a combination of analog and digital logic. The first output clock is an Analog-to-Digital converter (ADC) clock, which is produced by a voltage-controlled oscillator (VCO) and the second output clock is a synchronous clock, which is a multiplication of the VCO frequency by the PLL circuit.The output clock signals have very low jitter and distortion levels. The device also includes adjustable output voltage and output current limit protection. Additionally, the device provides an adjustable start-up delay, which is used to ensure that the output clock signals start at the correct frequencies.

Conclusion

In conclusion, the PL685-P8-038OC Clock/Timing - Clock Generators, PLLs, Frequency Synthesizers is a highly integrated and reliable module for producing frequency and phase accurate clock signals for various applications, such as data communications, telecommunication infrastructure, consumer audio/video applications, automotive applications, and various other high-speed optics and network applications. Its combination of crystal, voltage-controlled oscillators, and phase-locked loop circuitry results in very low jitter and distortion levels, while its adjustable output voltage and current limit protections make it suitable for a wide range of applications.

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