AD9901KPZ

AD9901 is a digital phase/frequency discriminator capable of directly comparing phase/frequency inputs up to 200MHz. Processing in a high speed trench-oxide isolated process, combined with an innovative design, gives the AD9901 a linear detection range, free of indeterminate phase detection zones common to other digital designs. A major feature of the AD9901 is its ability to compare phase/frequency inputs at standard IF frequencies without prescalers. Excessive phase uncertainty which is common with standard PLL configurations is also eliminated. The AD9901 provides the locking speed of traditional phase/frequency discriminators, with the phase stability of analogue mixers. Typical applications include low phase noise reference loops, fast tunning "agile" IF loops, secure "hopping" communications and coherent radar transmitter/receiver chains.

• Phase and frequency detection
• ECL/TTL/CMOS compatible
• Linear transfer function
• NO "Dead Zone"
• 218mW nominal power dissipation
• 0.47V internal reference voltage
• Input voltage range (TTL operation) from 0 to 5.5V
• 54mA max TTL supply current at 25°C
• 20 lead PLCC package
• Operating temperature range from 0°C to 70°C

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ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party