MK3732-17 Datasheet, PDF (1/6 Pages) Integrated Circuit Systems – ADSL VCXO CLOCK SOURCE

MK3732-17
ADSL VCXO CLOCK SOURCE
Description
The MK3732-17 is a low cost, low jitter, high
performance VCXO and PLL clock synthesizer
designed to replace expensive VCXO modules and
oscillators. The on-chip Voltage Controlled Crystal
Oscillator (VCXO) 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 Phase-Locked Loop
(PLL) techniques, the device uses an inexpensive
pullable crystal input to produce one or two output
clocks.
The MK3732-17 is an upgrade to the MK3732-07, and
is recomended for new designs.
ICS manufactures the largest variety of xDSL clock
synthesizers for all applications. Consult ICS to
eliminate VCXOs, crystals, and oscillators from your
board.
Features
• Packaged in 16 pin (150 mil) SOIC
• Replaces a VCXO and oscillator
• Ideal for Asymmetrical Digital Subscriber Line
(ADSL) chipsets
• Uses an inexpensive pullable crystal
• On-chip patented VCXO with pull range of 200 ppm
(+ 100 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
• Operating voltage of 3.3V
• Industrial temperature range available
Block Diagram
S2:S0 ³
VIN
X1
Pullable
Crystal
X2
VDD
2
Voltage
Controlled
Crystal
Oscillator
PLL/
Clock
Synthesis
Circuitry
2 ^GND
OE
CLK1
CLK2
MDS 3732-17 D
1
Revision 050803
Integrated Circuit Systems, Inc. q 525 Race Street, San Jose, CA 95126 q tel [phone] q www.icst.com