mk2704 Integrated Device Technology, mk2704 Datasheet

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mk2704

Manufacturer Part Number
mk2704
Description
Pll Audio Clock Synthesizer
Manufacturer
Integrated Device Technology
Datasheet

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mk2704SLFTR
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PLL AUDIO CLOCK SYNTHESIZER
Description
The MK2704 is a low cost, low jitter, high-performance PLL
clock synthesizer designed to replace oscillators and PLL
circuits in set-top box and multimedia systems. Using ICS’
patented analog Phase Locked Loop (PLL) techniques, the
device uses a 27 MHz crystal or clock input to produce a
buffered reference clock and a selectable audio clock.
The audio clock is frequency locked to the 27 MHz clock,
assuring that the audio with zero ppm error and video will
track perfectly.
ICS manufactures the largest variety of Set-Top Box and
multimedia clock synthesizers for all applications. Consult
ICS to eliminate VCXOs, crystals and oscillators from your
board.
Block Diagram
IDT™ / ICS™ PLL AUDIO CLOCK SYNTHESIZER
clock input
crystal or
27 MHz
Capacitors are required for crystal tuning
X2
X1
S1:0
2
Oscillator
Crystal
and Control
PLL Clock
Synthesis
1
VDD
Circuitry
GND
Features
Packaged in 8-pin SOIC
Available in Pb-free packaging
Uses an inexpensive, fundamental crystal or clock
Selectable audio output clock of 16.9344 MHz, 18.432
MHz, or 36.864 MHz
Supports MPEG sampling rates of 384x, 44.1 kHz, 48
kHz, and 96 kHz
Patented zero ppm synthesis error in all clocks
All frequencies are frequency locked
25 mA output drive capability at TTL levels
Advanced, low power, sub-micron CMOS process
Operating voltage of 3.3 V or 5 V
CLK
27M
MK2704
DATASHEET
MK2704
REV C 021304

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mk2704 Summary of contents

Page 1

... PLL AUDIO CLOCK SYNTHESIZER Description The MK2704 is a low cost, low jitter, high-performance PLL clock synthesizer designed to replace oscillators and PLL circuits in set-top box and multimedia systems. Using ICS’ patented analog Phase Locked Loop (PLL) techniques, the device uses a 27 MHz crystal or clock input to produce a buffered reference clock and a selectable audio clock ...

Page 2

... Input External Components Decoupling Capacitor As with any high performance mixed-signal IC, the MK2704 must be isolated from system power supply noise to perform optimally. A decoupling capacitor of 0.01µF must be connected between VDD and GND on pins 2 and 3. It must be connected close to the MK2704 to minimize lead inductance ...

Page 3

... Crystal capacitors, if needed, must be Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the MK2704. These ratings, which are standard values for ICS commercially rated parts, are stress ratings only. Functional operation of the device at these or any other conditions above those indicated in the operational sections of the specifications is not implied ...

Page 4

... JA θ CLOCK SYNTHESIZER Typ. Max. Units + Ω ppm Min. Typ. Max. Units 27 MHz ±30 ppm 1 ±225 ps Min. Typ. Max. Units °C/W 150 °C/W 140 °C/W 120 °C/W 40 MK2704 REV C 021304 ...

Page 5

... MK2704SLF 2704SL MK2704SLFTR 2704SL While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems (ICS) assumes no responsibility for either its use or for the infringement of any patents or other rights of third parties, which would result from its use. No other circuits, patents, or licenses are implied ...

Page 6

... MK2704 PLL AUDIO CLOCK SYNTHESIZER Innovate with IDT and accelerate your future networks. Contact: www.IDT.com For Sales 800-345-7015 408-284-8200 Fax: 408-284-2775 Corporate Headquarters Integrated Device Technology, Inc. 6024 Silver Creek Valley Road San Jose, CA 95138 United States 800 345 7015 +408 284 8200 (outside U.S.) © ...

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