Software-defined digital-up-down-converter supports 48 channels for wireless apps

Texas Instruments Incorporated has introduced software-defined digital up and down converter (DUC/DDC). The GC6016 supports one to 48 digital up and down convert channels configurable for data rates up to 184 MS/s with 98,304 decimation and interpolation range for supporting multiple wide and narrow bandwidth signals with high channel selectivity. The GC6016 is suitable for wireless applications, such as narrow and wideband 2G, 3G and 4G wireless base stations and digital repeaters, software defined radios (SDRs), MIMO transceivers and wideband digitizers.

Key features and benefits:
Provides fractional re-samplers, crest factor reduction, 48-bit numerically controlled oscillators (NCO) and automatic gain control (AGC) supporting up to four transmit and eight receive antennas simultaneously with multi-band and multi-mode configurations.
Includes interfaces for up to four transmit and eight receive antennas with real or complex inputs, enabling 2x2, 2x4, 4x4 and 4x8 transmit/receive solutions while simplifying board layout and reducing cost by an order of magnitude compared to FPGAs.
38 receive low voltage differential signaling (LVDS) pairs and 40 transmit LVDS pairs, each supporting up to 1.24 GSPS.
Integrates I/Q imbalance correction for enhanced performance of wideband complex transmit and receive signal chains, enabling lower sample rate and lower cost DACs and ADCs for wide bandwidth applications.

Availability and pricing: The GC6016 is sampling in a 23-mm x 23-mm TE-PBGA package, priced at $64.95 in 1,000-unit quantities.