With the launch of the AD8324 cable line driver, Analog Devices allows designers to lower supply voltages and reduce system costs in their DOCSIS, EuroDOCSIS, or OpenCable designs. The next generation of Analog Devices' AD8328 cable-line driver, the AD8324 operates on a single 3.3-V supply, and is optimized for driving coaxial cables in cable modems and digital set-top boxes. Digitally controlled with a variable-gain amplifier (VGA), the AD8324 offers an industry standard pin-out in the 20-lead QSOP and 4 mm x 4 mm LFCSP packages.
The AD8324 accepts a differential or single-ended input signal. An 8-bit serial gain-control word adjusts the gain over a 59-dB range (from -25.5 dB to 33.5 dB), with 1-dB/LSB resolution. The output is specified for driving a 75-ohm load through a 1:1 transformer. The spurious-free dynamic range (SFDR) is -52 dBc with an output level up to 61 dBmV at 65-MHz bandwidth.
The AD8324 also features a sleep mode function that reduces the quiescent current to 2.6 mA, and a full power-down function that reduces power-down current to 20 microamps.
The AD8324 is currently sampling in 20-lead QSOP and 4 mm x 4 mm LFCSP packages. The AD8324ARQ is priced at $1.58 per unit in 10,000-piece quantities, and the AD8324ACP is priced at $1.50 per 10,000 piece quantities.
Analog Devices, Inc., Tel: 800-ANALOGD (800-262-5643)
For additional information, please visit: www.analog.com/AD8324.
AD8324 Data Sheet