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PDF MK2745-24 Data sheet ( Hoja de datos )
| Número de pieza | MK2745-24 | |
| Descripción | DVD/MPEG Clock Source | |
| Fabricantes | Integrated Circuit Systems | |
| Logotipo |  |
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I CR O C LOC K
MK2745-24
DVD/MPEG Clock Source
Description
Features
The MK2745-24 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 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.
Block Diagram
VDD GND
23
• 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
ACS1:0
PCS
27 MHz clock
or crystal X1
X2
/2
Clock Synthesis
and Control
Circuitry
Crystal
Oscillator
÷8
÷256
Output
Buffer
Output
Buffer
Output
Buffer
Output
Buffer
Output
Buffer
Output
Buffer
PCLK
ACLK
ACLK/8
ACLK/256
27.0 MHz
27.0 MHz
MDS 2745-24 B
1
Revision 100898
Printed 11/16/00
MicroClock Division of ICS•1271 Parkmoor Ave.•San Jose•CA•95126•(408)295-9800tel•(408)295-9818fax
1 page | ||
| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet MK2745-24.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
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