PLL1708

3.3V 双路 PLL 多时钟发生器

The PLL1707 are low cost, phase-locked loop PLL multiclock generators. The PLL1707 and can generate four system clocks from a 27-MHz reference input frequency. The clock outputs of the PLL1707 can be controlled by sampling frequency-control pins and those of the PLL1708 can be controlled through serial-mode control pins. The device gives customers both cost and space savings by eliminating external components and enables customers to achieve the very low-jitter performance needed for high performance audio DACs and/or ADCs. The PLL1707 and PLL1708 are ideal for MPEG-2 applications which use a 27-MHz master clock such as DVD recorders, HDD recorders, DVD add-on cards for multimedia PCs, digital HDTV systems, and set-top boxes.

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27-MHz Master Clock Input

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Generated Audio System Clock PLL1707:

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SCKO0: 768 fS fS = 44.1 kHz

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SCKO1: 768 fS, 512 fS fS = 48 kHz

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SCKO2: 256 fS fS = 32, 44.1, 48, 64, 88.2, 96 kHz

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SCKO3: 384 fS fS = 32, 44.1, 48, 64, 88.2, 96 kHz

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Generated Audio System Clock PLL1708:

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SCKO0: 768 fS fS = 44.1 kHz

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SCKO1: 768 fS, 512 fS, 384 fS , 256 fS fS = 48 kHz

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SCKO2: 256 fS fS = 16, 22.05, 24, 32, 44.1, 48, 64, 88.2, 96 kHz

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SCKO3: 384 fS fS = 16, 22.05, 24, 32, 44.1, 48, 64, 88.2, 96 kHz

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Zero PPM Error Output Clocks

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Low Clock Jitter: 50 ps Typical

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Multiple Sampling Frequencies PLL1707:

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fS = 32, 44.1, 48, 64, 88.2, 96 kHz

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Multiple Sampling Frequencies PLL1708:

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fS = 16, 22.05, 24, 32, 44.1, 48, 64, 88.2, 96 kHz

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3.3-V Single Power Supply

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PLL1707: Parallel Control

PLL1708: Serial Control

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Package: 20-Pin SSOP 150 mil, Lead-Free Product

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APPLICA ONS

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HDD + DVD Recorders

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DVD Recorders

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HDD Recorders

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DVD Players

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DVD Add-On Cards for Multimedia PCs

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Digital HDTV Systems

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Set-Top Boxes

The PLL1707 and PLL1708 use the same die and they are electrically identical except for mode control.