Hot-selling and scarce AD8324ACP 3.3 V Upstream Cable Line Driver LFCSP20 spot stock

Product Descriptions

The AD8324¹ is a low cost amplifier designed for coaxial linedriving.The features and specifications make the AD8324ideally suited for DOCSIS 2.0 and Euro-DOCSIS applications .The gain of the AD8324 is digitally controlled .An 8-bit serialword determines the desired output gain over a 59 dB range,resulting in gain changes of 1 dB/LSB .

The AD8324 accepts a differential or single-ended input signal .The output is specified for driving a 75 Ω load through a 1:1transformer.

Distortion performance of –54 dBc is achieved with an outputlevel up to 61 dBmV at 65 MHz bandwidth .

This device has a sleep mode function that reduces the quiescent current to 30 µA and a full power-down function thatreduces power-down current to 2.5 mA .

The AD8324 is packaged in a low cost 20-lead LFCSP packageand a 20-lead QSOP package .The AD8324 operates from asingle 3.3 V supply.

Product Features

Supports DOCSIS 2.0 and Euro-DOCSIS standards for

reverse path transmission systems

Gain programmable in 1 dB steps over a 59 dB range

Low distortion at 61 dBmV output:

–59 dBc SFDR at 21 MHz

–54 dBc SFDR at 65 MHz

Output noise level @ minimum gain 1.3 nV/√Hz

Maintains 75 Ω output impedance in TX-enable and

Transmit-disable condition

Upper bandwidth: 100 MHz (full gain range)

3.3 V supply operation

Supports SPI® interfaces

Product Applications

DOCSIS 2.0 and Euro-DOCSIS cable modems

CATV set-top boxes

CATV telephony modems

Coaxial and twisted pair line drivers

Product Photos

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