mk3727e ETC-unknow, mk3727e Datasheet

no-image

mk3727e

Manufacturer Part Number
mk3727e
Description
Low Cost 27 Mhz 3.3 Volt Vcxo
Manufacturer
ETC-unknow
Datasheet

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MK3727E
Manufacturer:
BEL
Quantity:
294
Part Number:
MK3727E
Manufacturer:
ICS
Quantity:
20 000
Part Number:
mk3727eTR
Manufacturer:
IDT
Quantity:
15 998
MDS 3727E D
Description
The MK3727E combines the functions of a VCXO
(Voltage Controlled Crystal Oscillator) and PLL (Phase
Locked Loop) frequency doubler onto a single chip.
Used in conjunction with an external pullable quartz
crystal, this monolithic integrated circuit replaces more
costly hybrid (canned) VCXO devices. The MK3727E is
designed primarily for data and clock recovery
applications within end products such as set-top box
receivers.
The MK3727E exhibits a moderate VCXO gain of 120
ppm/V typical, when used with a high quality external
pullable quartz crystal.
The frequency of the on-chip VCXO is adjusted by an
external control voltage input into pin VIN. Because
VIN is a high impedance input, it can be driven directly
from an PWM RC integrator circuit. Frequency output
increases with VIN voltage input. The usable range of
VIN is 0 to 3 V.
Block Diagram
Integrated Circuit Systems
12-18 MHz
Pullable
Crystal
VIN
X1
X2
l
5 25 Race Street, San Jose, CA 9 512 6
Controlled
Oscillator
Voltage
Crystal
L
1
OW
Frequency
Doubler
PLL
Features
C
MK3727E offers 24-36 MHz output frequency range
(output frequency = 2x crystal frequency) and
improved power supply noise rejection
Uses an inexpensive 12 to 18 MHz external crystal
Ideal for set-top box applications using 13.5 MHz
external pullable crystal to generate lock 27 MHz
clock transport video clock
Ideal for ADSL applications using 17.664 MHz
external pullable crystal to generate locked 35.328
MHz clock physical layer clock
On-chip VCXO with guaranteed pull range of ±115
ppm minimum
VCXO input tuning voltage 0 to 3.3 V
Packaged in 8 pin SOIC (150 mil wide)
Available in Pb (lead) free packaging
Exact drop-in replacement for MK3727S
OST
27 MH
l
tel (40 8) 2 97-12 01
24-36 MHz
(2x Crystal Frequency)
Z
3.3 V
MK3727E
OLT
l
w w w. i c s t . c o m
Revision 042105
VCXO

Related parts for mk3727e

mk3727e Summary of contents

Page 1

... VCXO devices. The MK3727E is designed primarily for data and clock recovery applications within end products such as set-top box receivers. The MK3727E exhibits a moderate VCXO gain of 120 ppm/V typical, when used with a high quality external pullable quartz crystal. The frequency of the on-chip VCXO is adjusted by an external control voltage input into pin VIN ...

Page 2

... VCXO. Power Connect to ground. Output Clock output. — No internal connection (may connect to ground or VDD). Power Connect to ground. Input Crystal connection. Connect to the external pullable crystal. 2 MK3727E 3 OST Z OLT Pin Description Revision 042105 ...

Page 3

... The external crystal must be connected as close to the chip as possible and should be on the same side of the PCB as the MK3727E. There should be no vias between the crystal pins and the X1 and X2 device pins. There should be no signal traces underneath or close to the crystal ...

Page 4

... Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the MK3727E. 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

... VIN < 3.3 V, Note 1 P VIN = VDD Note 1 t 0 2 Measured MK3727E 3.3 V VCXO OW OST Z OLT Min. Typ. Max. Units 3.15 3.45 2.4 0.4 VDD-0.4 10 ±50 0 3.3 Min. Typ. Max. Units ...

Page 6

... MK3727E MK3727ELF MK3727EL MK3727ELFTR MK3727EL Parts that are ordered with a "LF" suffix to the part number are the Pb-Free configuration and are RoHS compliant. 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 ...

Related keywords