Overview
The XMC-3321 is a key component in Spectrum’s series of software defined digital radio modules from the flexComm™ wireless communications product line. The XMC-3321 supports industry standard IF frequencies including 10.7, 21.4 and 70 MHz through the use of dual 14-bit A/D converters sampling at up to 105 MSPS and dual 14-bit D/A converters sampling at up to 300 MSPS in a single-width XMC form factor. The XMC (ANSI VITA 42.0) standard is fully compatible with the IEEE P1386.1 PMC standard but offers the additional benefit of dedicated high-speed links between an XMC-compliant carrier and its mezzanine modules. The XMC-3321 is capable of supporting either the Solano Communication Technology or Parallel RapidIO (ANSI VITA 42.1) via the high-speed XMC interface. The module also features a single user programmable Xilinx Virtex-4 FPGA device for wide bandwidth signal processing and filtering in the digital domain.
Features and Benefits
Features
- Available in conduction-cooled and air-cooled versions with (optional) conformal coating. Rugged conduction-cooled PMC module versions follow the industry standard ANSI VITA 20 specification and operate with IEEE 1101.2 compliant XMC carriers.
- IF to digital conversion via two 14-bit A/D converters sampling at 96.0 MSPS (alternate sampling rates from 36
to 105 MSPS optional) - Digital to IF conversion via two 14-bit D/A converters sampling at 192.0 MSPS (alternate sampling rates up to
300 MSPS optional) - Two 12 bit D/A converters up to 100 KSPS suitable for driving AGC input of an RF front-end
- Four 12 bit A/D converters up to 100 KSPS suitable for reading the RSSI output of an RF front-end
- XMC interface (ANSI VITA 42.0) provides high-speed, low latency, deterministic data flow to an industry standard carrier. Compatible with PMC and ePMC (Solano®) carriers.
- User programmable Xilinx® Virtex-4™ FPGA for wideband processing and low power consumption
- PCI 32-bit/33 MHz host bus for control
- High-speed analog inputs are AC coupled, DC coupled input is optional
- JTAG interface compatible with Xilinx’s ChipScope™ debugger
- General Purpose I/O (GPIO) lines via PN4 connect the user programmable FPGA to the carrier board
- Internal or external 10 MHz reference oscillator drives the on-board sample clock
- Extended GPIO version available, replacing low-speed A/D and D/A converters with additional JN4 GPIO
Benefits
- Rugged design for deployment in harsh environments
- Supports conversion and processing of intermediate frequency (IF) signals including industry standard 10.7, 21.4 and 70 MHz
- Supports multi-channel coherent operation necessary in many Multiple-Input, Multiple-Output (MIMO) and Smart Antenna applications
- Increase communications range and improve payload data throughput with ultra low additive jitter clock circuitry design that is essential to maximize energy per bit/noise spectral density (Eb/No)
- Provides independent data and control signal paths necessary for real-time transceiver operation
- quicComm™ software architecture accelerates application development, simplifies the programming model and
ensures code portability
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