Datasheet Texas Instruments LMH1983SQE/NOPB — 数据表

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SNLS309I – APRIL 2010 – REVISED DECEMBER 2014 LMH1983 3G/HD/SD Video Clock Generator with Audio Clock
1 Features 3 Description The LMH1983 is a highly-integrated programmable
audio/video (A/V) clock generator intended for
broadcast and professional applications. It can
replace multiple PLLs and VCXOs used in
applications supporting SMPTE serial digital video
(SDI) and digital audio AES3/EBU standards. It offers
low-jitter reference clocks for any SDI transmitter to
meet stringent output jitter specifications without
additional clock cleaning circuits. 1 Four PLLs for Simultaneous A/V Clock Generation
– PLL1: 27 or 13.5 MHz
– PLL2: 148.5 or 74.25 MHz
– PLL3: 148.5/1.001 or 74.25/1.001 MHz
– PLL4: 98.304 MHz / 2X (X = 0 to 15)
3 x 2 Video Clock Crosspoint
Flexible PLL Bandwidth to Optimize Jitter
Performance and Lock Time …