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AD9863:  12-Bit Mixed-Signal Front-End (MxFE® )Processor For Broadband Applications

The AD9863 is a member of the MxFE® family, a group of integrated converters for the communications market. The AD9863 includes dual 12-bit Analog-to-Digital Converters (ADCs) and dual 12-bit Digital to Analog Converters (TxDAC® converters). Two speed grades are available, a -50 and -80. The -50 is optimized for ADC sampling of 50 MSPS and less, while the -80 is optimized for ADC sample rates ...More

AD9863:  12-Bit Mixed-Signal Front-End (MxFE® )Processor For Broadband Applications

Product Description

The AD9863 is a member of the MxFE® family, a group of integrated converters for the communications market. The AD9863 includes dual 12-bit Analog-to-Digital Converters (ADCs) and dual 12-bit Digital to Analog Converters (TxDAC® converters). Two speed grades are available, a -50 and -80. The -50 is optimized for ADC sampling of 50 MSPS and less, while the -80 is optimized for ADC sample rates between 50 MSPS and 80 MSPS. The dual TxDAC converters operate at speeds up to 200 MHz and includes a bypassable 2x or 4x interpolation filter. All devices are optimized for low power, small form factor and provide a cost effective solution for the broadband communication market.

The AD9863 utilizes two independent input clocks input for controlling all system clocks. The ADC sampling rate is controlled by the CLKIN1 input. The DAC sampling rate is controlled by the CLKIN2 input and a Phase-Lock-Loop clock multiplier.

A Flexible bi-directional 24-bit I/O bus is used to accommodate a variety of custom digital back ends or open market DSPs. In half duplex systems, the interface supports 24-bit parallel transfers or 12-bit interleaved transfers. In Full duplex systems, the interface supports an interleaved 12-bit ADC bus and an interleaved 12-bit Tx bus. The Flexible I/O bus reduces pin count and therefore required package size.

The AD9863 can use either mode pins or a serial programmable interface (SPI) to configure the interface bus, operate the ADC in a low power mode, configure the TxDAC converter interpolation rate, control the ADC power down and TxDAC converter power down. The SPI allows for more programmable options for both the TxDAC path (for example, coarse and fine gain control, offset control for channel matching) and ADC path (for example, internal duty cycle stabilizer, 2’s complement data format).

The AD9863 is packaged in a 64-pin lfCSP package (low profile, fine pitch chip scale package). The 64-pin lfCSP package footprint is only 9 mm by 9 mm and is less than 0.9 mm high fitting into tightly spaced applications such as PCMCIA cards.

Applications

  • Broadband Access
  • Broadband LAN
  • Communications (Modems)

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  • Receive Path Includes Dual 12-Bit Analog-To-Digital Converters with Internal or External Reference, 50 and 80 MSPS Versions
  • Transmit Path Includes Dual 12-Bit, 200 MSPS Digital-To-Analog Converters with 1x, 2x, Or 4x Interpolation and Programmable Gain Control
  • Internal Clock Distribution Block Includes a Programmable Phase-Locked Loop and Timing Generation Circuitry Allowing Single or Dual Reference Clock Operation
  • 24 Bit Flexible I/O Data Interface Allow Various Interleaved or Non-Interleaved Data Transfers in Half-Duplex Mode and Interleaved Data Transfers in Full-Duplex Mode
  • Configurable Through SPI Compliant Port or MODE Selection Pins
  • Independent Rx and Tx Converter Powerdown Control Pins
  • 64 Lead LFCSP Package
    (9 mm x 9 mm Footprint
  • Resolution (Bits): 12bit
  • T-Put Rate: 50MSPS
  • # Chan: 2
  • Supply V: Single(+3),Single(+3.3)
  • Sample Rate: 50MSPS
  • ADC Bits x #ADCs-Speed : 12x2-50 MHz
  • DAC Bits x #DACs-ClkSpeed: 12x2-200 MHz
  • Pkg Type: CSP
  • Primary Application: Broadband Wireless

Functional Block Diagram for AD9863

Similar Products

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Part# ADC Bits x #ADCs-Speed DAC Bits x #DACs-ClkSpeed Pkg Type Primary Application Supply V Product Description Price* (1000-4999)
AD9863 12x2-50 MHz 12x2-200 MHz CSP Broadband Wireless Single(+3), Single(+3.3) Mixed-Signal Front-End (MxFE™) Baseband Transceiver for Broadband Applications $21.68
AD9861-50 10x2-50 MHz 10x2-200 MHz CSP Broadband Wireless Single(+3), Single(+3.3) Dual 10-Bit DAC/Dual 50 MSPS ADC Mixed-Signal Front-End (MxFE™) For Broadband Comms Apps $10.84
AD9860 10x2-64 MHz 12x2-128 MHz QFP Broadband Wireless Single(+3.3) Dual 12-Bit DAC/Dual 10-Bit ADC Mixed Sig Front-End (MxFE™) for Bband Comms, Rx&Tx PGA, Digital SSB $13.90
AD9868 10x1-33 MHz, 12x1-33 MHz, 7x2-16.5 MHz 12x1-232 MHz CSP Broadband Wireline, Home Networking Multi(+3.3Anlg, +3.3Dig) 10-Bit DAC/80 MSPS, 10-Bit ADC, Mixed-Signal Front-End for Broadband Modem Applications -
AD9861-80 10x2-80 MHz 10x2-200 MHz CSP Broadband Wireless Single(+3), Single(+3.3) Dual 10-Bit DAC/Dual 80 MSPS ADC Mixed-Signal Front-End (MxFE™) For Broadband Comms Apps $10.84
AD9865 10x1-80 MHz 10x1-200 MHz CSP Broadband Wireline, Home Networking Single(+3.3) 10-Bit DAC/80 MSPS, 10-Bit ADC, Mixed-Signal Front-End for Broadband Modem Applications $10.07
AD9878 10x1-33 MHz, 12x1-33 MHz, 7x2-16.5 MHz 12x1-232 MHz QFP Cable Modem/Set Top Box Single(+3.3) Dual 12-Bit, 29 MSPS Direct IF ADC/12-Bit Direct IF DAC, Mixed-Signal Front-End for Broadband Apps $13.68
AD9879 10x1-33 MHz, 12x1-33 MHz, 7x2-16.5 MHz 12x1-232 MHz QFP Cable Modem/Set Top Box Single(+3.3) 12-Bit Mixed-Signal Front-End for Set Top Box & Cable Modem Applications $12.12
AD9862 12x2-64 MHz 14x2-128 MHz QFP Broadband Wireless Single(+3.3) Dual 14-Bit DAC/Dual 12-Bit ADC Mixed Sig Front-End (MxFE™) for Bband Comms, Rx&Tx PGA, Digital SSB $30.11
AD9869 12x1-80 MHz 12x1-80 MHz CSP Broadband Wireline, Home Networking Multi(+3.3Anlg, +3.3Dig), Single(+3.3) 12-Bit DAC/80 MSPS, 12-Bit ADC, Mixed-Signal Front-End for Broadband Modem Applications $18.27
AD9866 12x1-80 MHz 12x1-200 MHz CSP Broadband Wireline, Home Networking Single(+3.3) 12-Bit DAC/80 MSPS 12-Bit ADC, Mixed-Signal Front-End for Broadband Modem Applications $18.77
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*The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
**Sample availability may be better than production availability. Please enter samples into your cart to check sample availability.