mk3724 Integrated Device Technology, mk3724 Datasheet

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mk3724

Manufacturer Part Number
mk3724
Description
Vcxo Plus Audio Clock For Stb
Manufacturer
Integrated Device Technology
Datasheet

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Part Number:
mk3724GL
Quantity:
440
VCXO PLUS AUDIO CLOCK FOR STB
IDT™ / ICS™ VCXO PLUS AUDIO CLOCK FOR STB
Description
The MK3724 is a low cost, low jitter, high performance
VCXO and PLL clock synthesizer designed to replace
expensive discrete VCXOs and multipliers. The patented
on-chip Voltage Controlled Crystal Oscillator accepts a 0 to
3.3 V input voltage to cause the output clocks to vary by
±115 ppm. Using ICS’ analog/digital Phase-Locked Loop
(PLL) techniques, the device uses an inexpensive 27 MHz
pullable crystal input to produce a reference output and a
selectable audio clock.
ICS manufactures the largest variety of VCXO based timing
devices for all applications. Consult ICS to eliminate
VCXOs, crystals, and oscillators from your board.
The frequency of the on-chip VCXO is adjusted by an
external control voltage connected to VIN. Because VIN is
a high impedance input, it can be driven directly from an
PWM RC integrator circuit.
Block Diagram
Pullable
27 MHz
Crystal
S2:S0
VIN
X1
X2
3
Controlled
Oscillator
Voltage
Crystal
GND
VDD
3
3
1
Features
PLL/Clock
Synthesis
Circuitry
Packaged in 16-pin TSSOP
Available in Pb free packaging
Replaces a VCXO and oscillator
Operating voltage of 3.3 V
Provides output of 27 MHz plus audio clock
Uses an inexpensive 27 MHz pullable crystal
On-chip patented VCXO with pull range of 230 ppm
(minimum)
VCXO tuning voltage of 0 to 3.3 V
Advanced, low power, sub-micron CMOS process
Industrial temperature range available
For other standard audio frequencies see the MK3722
PDTS
ACLK
27MHz
MK3724
DATASHEET
MK3724
REV C 121904

Related parts for mk3724

mk3724 Summary of contents

Page 1

... VCXO PLUS AUDIO CLOCK FOR STB Description The MK3724 is a low cost, low jitter, high performance VCXO and PLL clock synthesizer designed to replace expensive discrete VCXOs and multipliers. The patented on-chip Voltage Controlled Crystal Oscillator accepts 3.3 V input voltage to cause the output clocks to vary by ± ...

Page 2

... No connect. Do not connect anything to this pin. Input Select input S1. Selects ACLK per table above. Internal pull-up resistor. 2 VCXO AND SYNTHESIZER S1 S0 ACLK (MHz 3.072 0 1 4.096 1 0 6.144 1 1 8.192 0 0 12.288 0 1 24.576 1 0 33.8688 1 1 73.728 Pin Description MK3724 REV C 121904 ...

Page 3

... Decoupling Capacitors Decoupling capacitors of 0.01 µF should be connected between VDD and GND on pins 3 and 4, pins 6 and 7, and pins 11 and 14 as close to the MK3724 as possible. For optimum device performance, the decoupling capacitors should be mounted on the component side of the PCB. Avoid the use of vias in the decoupling circuit. ...

Page 4

... Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the MK3724. 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 5

... CLK output final frequency 5 VCXO AND SYNTHESIZER Min. Typ. Max. 2.5 0.8 0.5 0.1 -8.5 11 ±50 0 3.3 360 5 20 Min. Typ. Max. Units + 100 + 150 150 ppm/V 1.2 2.0 1.2 2.0 = +150 MK3724 Units µA µ kΩ pF Ω ppm REV C 121904 ...

Page 6

... YYWW is the last two digits of the year, and the week number that the part was assembled. 3. “L” designates Pb (lead) free. 4. Bottom mark denotes country of origin if not USA VCXO AND SYNTHESIZER Min. Typ. Max. Units °C/W 78 °C/W 70 °C/W 68 °C/W 37 MK3724 REV C 121904 ...

Page 7

... MK3724G MK3724GLF MK3724GL MK3724GLFTR MK3724GL MK3724GILF MK3724IL MK3724GILFTR MK3724IL 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 8

... MK3724 VCXO PLUS AUDIO CLOCK FOR STB 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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