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ICS726A

Integrated Device Technology
Part Number ICS726A
Manufacturer Integrated Device Technology
Description 12 TO 36 MHZ 6TSOT VCXO
Published Jul 16, 2010
Detailed Description www.DataSheet4U.com DATASHEET 12 TO 36 MHZ 6TSOT VCXO Description Used in conjunction with an external pullable quartz...
Datasheet PDF File ICS726A PDF File

ICS726A
ICS726A

Overview
www.
DataSheet4U.
com DATASHEET 12 TO 36 MHZ 6TSOT VCXO Description Used in conjunction with an external pullable quartz crystal, this monolithic integrated circuit replaces more costly hybrid (canned) VCXO devices.
The ICS726A is designed primarily for data and clock recovery applications such as ADSL modems, set-top box receivers, and telecom systems.
The frequency of the on-chip VCXO is adjusted by an external control voltage to the VIN pin.
Since 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.
3 V.
ICS726A Features • Uses an inexpensive 12 to 36 MHz external crystal • Output frequency range of 12 to 36 MHz • On-chip VCXO with guaranteed pull range of ±115 ppm minimum • VCXO tuning voltage 0 to 3.
3 V • Packaged in 6-pin TSOT • Pb (lead) free package Block Diagram VDD VIN X1 12-36MHz Pullable Crystal X2 Voltage Controlled Crystal Oscillator 12-36MHz GND IDT™ / ICS™ 12 TO 36 MHZ 6TSOT VCXO 1 ICS726A REV D 051310 ICS726A 12 TO 36 MHZ 6TSOT VCXO www.
DataSheet4U.
com VCXO Pin Assignment X2 GND CLK 1 2 3 6 5 4 X1 VI N VDD T S OT - 2 3 - 6 Pin Descriptions Pin Number 1 2 3 4 5 6 Pin Name X2 GND CLK VDD VIN XI Pin Type Input Power Output Power Input Input Connect to ground.
Pin Description Crystal connection.
Connect to the external pullable crystal.
VCXO CMOS level clock output at the frequency of the crystal.
Connect to +3.
3 V (0.
01µf decoupling capacitor recommended).
Voltage input to VCXO — 0 to 3.
3 V analog input which controls the oscillation frequency of the VCXO.
Crystal connection.
Connect to the external pullable crystal.
IDT™ / ICS™ 12 TO 36 MHZ 6TSOT VCXO 2 ICS726A REV D 051310 ICS726A 12 TO 36 MHZ 6TSOT VCXO www.
DataSheet4U.
com VCXO External Component Selection The ICS726A requires a minimum number of external components for proper operation.
Required Crystal Parameters: Nominal Frequency as required MHz...


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