MK2732-05S Integrated Circuit Systems, MK2732-05S Datasheet

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MK2732-05S

Manufacturer Part Number
MK2732-05S
Description
Low Phase Noise VCXO+Multiplier
Manufacturer
Integrated Circuit Systems
Datasheet
MDS 2732-05 D
Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA •95126•(408) 295-9800 tel• www.icst.com
The MK2732-05 is a low cost, low jitter, high
performance VCXO and PLL clock synthesizer
designed to replace expensive discrete VCXOs
and multipliers. The on-chip Voltage Controlled
Crystal Oscillator (VCXO) accepts a 0 to 3 V
input voltage to cause the output clocks to vary by
±100 ppm. Using ICS/MicroClock’s patented
VCXO and analog Phase-Locked Loop (PLL)
techniques, the device uses an inexpensive 10 MHz
to 14.318 MHz pullable crystal input to produce
one or two output clocks.
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.
Description
Block Diagram
10-14 MHz
pullable
crystal
S2:S0
VIN
X1
X2
Controlled
Oscillator
Voltage
Crystal
3
PLL/Clock
Synthesis
Circuitry
VDD5
1
Low Phase Noise VCXO+Multiplier
• Packaged in 16 pin narrow SOIC
• Replaces a VCXO and multiplier
• Uses an inexpensive pullable crystal
• Output clocks up to 85 MHz
• On-chip patented VCXO with pull range of
• VCXO tuning voltage of 0 to 3 V
• Zero ppm synthesis error in both clocks
• 25 mA output drive capability at TTL levels
• Advanced, low power, sub-micron CMOS process
• 5 V operating voltage for core, ability to run
Features
200 ppm (±100 ppm) minimum
output clocks at 3.3V or 5V
VDDIO
Output
Output
Buffer
Buffer
OE
Revision 122799
CLK1
CLK2
MK2732-05
Printed 11/16/00

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MK2732-05S Summary of contents

Page 1

... Description The MK2732- low cost, low jitter, high performance VCXO and PLL clock synthesizer designed to replace expensive discrete VCXOs and multipliers. The on-chip Voltage Controlled Crystal Oscillator (VCXO) accepts input voltage to cause the output clocks to vary by ±100 ppm. Using ICS/MicroClock’s patented ...

Page 2

... The MK2732-05 requires a minimum number of external components for proper operation. Decoupling capacitors of 0.1µF should be connected between VDD5 and GND on pins 3 and 5, and VDDIO and GND on pins 11 and 13, as close to the MK2732-05 as possible. A series termination resistor used for each clock output. The input crystal must be connected as close to the chip as possible. The input crystal should be a fundamental mode, parallel resonant, pullable, AT cut ...

Page 3

... S2, S1, OE S0, pin 10 VDDIO-0.5 S0, pin 10 IOH=-25mA IOL=25mA IOH=-8mA VDDIO-0.4 No Load Each output S2:S0, OE Both clocks 0.8 to 2.0V 2.0 to 0.8V At VDDIO/2 10 kHz offset 0V VIN 3V ±100 14 pF 240 max 35 max °C ±20 ppm ±50 ppm 3 MK2732-05 Typical Maximum 7 -0.5 VDD+0 260 -65 150 5.0 5.25 3.3 VDD5 3.5 2.5 2.5 1.5 2 0.8 0.5 2.4 0.4 19 ±100 7 0 ...

Page 4

... Integrated Circuit Systems, Inc. • 525 Race Street • San Jose •CA •95126•(408) 295-9800 tel• www.icst.com Low Phase Noise VCXO+Multiplier 45° Marking Shipping packaging MK2732-05S tubes MK2732-05S tape and reel 4 MK2732-05 16 pin SOIC narrow Inches Inches Symbol Min Max A ...

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