MK2745-24

I C R O C LOC K Description The MK2745-24 is a low cost, low jitter, high performance clock synthesizer for DVD and other MPEG 2 based applications. Using analog PhaseLocked Loop (PLL) techniques, the device accepts a 27.00 MHz fundamental mode crystal or clock input to produce multiple audio output clocks, a processor clock, and two 27 MHz clocks. The audio clocks are frequency locked to the 27.00 MHz using our patented zero ppm error techniques, allowing audio and video to track exactly, thereby eliminating the need for large buffer memory. MicroClock manufactures the largest variety of DVD, Set-Top Box, and multimedia clock synthesizers for all applications. Consult MicroClock to eliminate crystals and oscillators from your board. MK2745-24 DVD/MPEG Clock Source Features Packaged in 16 pin narrow (150 mil) SOIC Ideal for AuraVision’s notebook DVD solutions Patented zero ppm audio clock error for exact audio clock sampling rates, plus 32x and 256x clocks of the sampling frequencies Selectable audio sampling frequencies support 32, 44.1, 48 and 96 kHz in most DACs 27.00 MHz fundamental crystal or clock input Selectable processor frequencies Two clocks of 27 MHz Zero ppm error in all clocks 25mA output drive capability at TTL levels Advanced, low power, sub-micron CMOS process 3.0V to 5.5V operating voltage See also the MK2712 for NTSC/PAL clocks Block Diagram VDD 2 /2 GND 3 Output Buffer ACS1:0 PCS PCLK ACLK ACLK/8 ACLK/256 27.0 MHz 27.0 MHz Cl...