MK3720D IDT, Integrated Device Technology Inc, MK3720D Datasheet

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MK3720D

Manufacturer Part Number
MK3720D
Description
IC VCXO DTV/SET-TOP 8-SOIC
Manufacturer
IDT, Integrated Device Technology Inc
Type
Voltage Controlled Crystal Oscillator (VCXO)r
Datasheet

Specifications of MK3720D

Pll
Yes with Bypass
Input
Crystal
Output
CMOS
Number Of Circuits
1
Ratio - Input:output
2:3
Differential - Input:output
No/No
Frequency - Max
54MHz
Divider/multiplier
No/No
Voltage - Supply
3.15 V ~ 3.45 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
8-SOIC
Frequency-max
54MHz
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MK3720DLFTR
Manufacturer:
DIODES/美台
Quantity:
20 000
27 MHZ AND 54 MHZ 3.3 VOLT VCXO
Description
The MK3720D is a drop-in replacement for the MK3720S
and MK3720A devices. Compared to these earlier devices
the MK3720D offers a wider operating frequency range and
improved power supply noise rejection.
The MK3720 is a low-cost, low-jitter, high-performance 3.3
Volt VCXO designed to replace expensive 13.5, 27, or 54
MHz VCXOs. 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 ±100 ppm. Using ICS’
patented VCXO and analog/digital Phase-Locked Loop
(PLL) techniques, the device uses an inexpensive external
pullable crystal input to produce output clocks of 13.5 MHz,
27 MHz, and 54 MHz.
The MK3720D 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.
Block Diagram
IDT™ / ICS™ 27 MHZ AND 54 MHZ 3.3 VOLT VCXO
1 3 .5 M H z
P u lla b le
C ry s ta l
V IN
X 1
X 2
C o n tro lle d
O s cilla to r
V o lta g e
C ry sta l
G N D
V D D
CONFIDENTIAL
1
P L L /C lo c k
S y n th e s is
Features
MK3720D is Recommended for New Designs
C irc u itry
MK3720D is a drop-in upgrade to the earlier MK3720S
and MK3720A devices
Packaged in 8-pin SOIC
Available in Pb (lead) free package
Operating voltage of 3.3 V (±5%)
Output clocks of 54, 27, and 13.5 MHz
Uses an inexpensive 13.500 MHz external crystal
On-chip VCXO (patented) with pull range of 200 ppm
(minimum)
VCXO tuning voltage of 0 to 3.3 V
12 mA output drive capability at TTL levels
Advanced, low-power, sub-micron CMOS process
CONFIDENTIAL (DELETE IF NOT NEEDED)
5 4 M H z
2 7 M H z
1 3 .5 M H z
MK3720
DATASHEET
MK3720
REV I 061705

Related parts for MK3720D

MK3720D Summary of contents

Page 1

... Block Diagram lla IDT™ / ICS™ 27 MHZ AND 54 MHZ 3.3 VOLT VCXO CONFIDENTIAL Features • MK3720D is a drop-in upgrade to the earlier MK3720S and MK3720A devices • Packaged in 8-pin SOIC • Available in Pb (lead) free package • Operating voltage of 3.3 V (±5%) • ...

Page 2

MK3720 27 MHZ AND 54 MHZ 3.3 VOLT VCXO Pin Assignment GND SOI C Pin Descriptions Pin Pin ...

Page 3

MK3720 27 MHZ AND 54 MHZ 3.3 VOLT VCXO External Component Selection The MK3720 requires a minimum number of external components for proper operation. Decoupling Capacitor A decoupling capacitor of 0.01µF must be connected between VDD (pin 2) and GND ...

Page 4

MK3720 27 MHZ AND 54 MHZ 3.3 VOLT VCXO Absolute Maximum Ratings Stresses above the ratings listed below can cause permanent damage to the MK3720. These ratings, which are standard values for ICS commercially rated parts, are stress ratings only. ...

Page 5

MK3720 27 MHZ AND 54 MHZ 3.3 VOLT VCXO DC Electrical Characteristics VDD=3.3 V ±5% , Ambient temperature 0 to +70°C, unless stated otherwise Parameter Operating Voltage Output High Voltage Output Low Voltage Output High Voltage (CMOS Level) Operating Supply ...

Page 6

... MK3720DLFTR MK3720DL Note 1: MK3720D is recommended for new designs. Call factory for information on MK3720A and MK3720S. 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 ...

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