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Description: Broadband Modem Mixed-Signal Front End
Manufacturer:Analog Devices
Datasheet:PDF (860K).
Click here to download *)

The AD9869 is a mixed-signal front-end (MxFE) IC for transceiver applications requiring Tx path and Rx path functionality with data rates up to 80 MSPS. A lower cost, pincompatible version of the AD9866, the AD9869 removes the current amplifier (IAMP) IOUTP functionality and limits the PLL VCO operating range of 80 MHz to 200 MHz. The part is well suited for half- and full-duplex applications. The digital interface is extremely flexible, allowing simple interfacing to digital back ends that support half- or full-duplex data transfers, often allowing the AD9869 to replace discrete ADC and DAC solutions. Power-saving modes include the ability to reduce power consumption of individual functional blocks or power down unused blocks in half-duplex applications. A serial port interface (SPI) allows software programming of the various functional blocks. An on-chip PLL clock multiplier and synthesizer provide all the required internal clocks, as well as two external clocks, from a single crystal or clock source. The Tx signal path consists of a 2x/4x low-pass interpolation filter, a 12-bit TxDAC, and a line driver. The transmit path signal bandwidth can be as high as 34 MHz at an input data rate

Click here to download AD9869BCPZRL Datasheet
Click here to download AD9869BCPZRL Datasheet
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