12 TO 36 MHZ 6TSOT VCXO
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DATASHEET
12 TO 36 MHZ 6TSOT VCXO Description
Used in conjunction with an external pullable quartz...
Description
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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
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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 (0.01µ...
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