參數(shù)資料
型號(hào): MK2745-20SLF
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: 時(shí)鐘產(chǎn)生/分配
英文描述: 108 MHz, VIDEO CLOCK GENERATOR, PDSO16
封裝: 0.150 INCH, SOIC-16
文件頁(yè)數(shù): 1/4頁(yè)
文件大小: 61K
代理商: MK2745-20SLF
MK2745-20
MPEG Clock Source
MDS 2745-20 A
1
Revision 052499
Printed 11/16/00
Integrated Circuit Systems 525 Race Street San Jose CA 95126 (408)295-9800tel (408)295-9818fax
PRELIMINARY INFORMATION
The MK2745-20 is a low cost, low jitter, high
performance clock synthesizer for DVD and other
MPEG 2 based applications. Using analog Phase-
Locked Loop (PLL) techniques, the device accepts
a 27.00 MHz fundamental mode crystal or clock
input to produce multiple output clocks including
a selectable processor clock, a selectable processor
clock, a selectable audio clock, and fixed outputs
of 27 MHz and 24.576 MHz. The audio clocks
are frequency locked to the 27.00MHz input 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 us to
eliminate crystals and oscillators from your board.
Block Diagram
Description
Features
Packaged in 16 pin narrow (150 mil) SOIC
Ideal for DVD and MPEG solutions
3.0 V to 5.5 V operating voltage
Patented zero ppm audio clock error for 256X and
384X sampling rates
Selectable audio sampling frequencies support
32 kHz, 44.1 kHz, and 48 kHz in most DACs
27.00 MHz fundamental crystal or clock input
Eight selectable processor frequencies
Fixed clocks of 27 and 24.576 MHz
Zero ppm error in all clocks
Full CMOS outputs with 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
Clock
Buffer/
Crystal
Oscillator
VDD
GND
Clock Synthesis
and Control
Circuitry
Processor Clock
27.00 MHz
clock or
crystal
Output
Buffer
Output
Buffer
Audio Clock
27 MHz
2
Output
Buffer
24.576 MHz
AS2:0
Output
Buffer
3
PS2:0
3
X1
X2
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參數(shù)描述
MK2745-21 制造商:ICS 制造商全稱:ICS 功能描述:DVD/MPEG Clock Source
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