Transmit-Receive Signal Processor 484-Pin BGA Bulk

The GC6016 is a wideband transmit and receive signal processor that includes digital downconverter / upconverter (DDUC), transmit, receive, and capture buffer blocks. The transmit path includes crest factor reduction (CFR), complex equalization, and bulk upconversion. The GC6016 is a related product to the GC5330, with the DPD block not functional.The GC6016 has an identical package and footprint with the GC5330.The receive path includes wideband and narrowband automatic gain control (AGC), bulk downconversion, complex equalization, and I/Q imbalance correction. The DDUC section consists of four identical DDUC blocks, each supporting up to 12 channels. Each channel has independent fractional resamplers and NCOs to enable flexible carrier configurations. Multi-mode/multi-standard operation can be supported by configuring the individual DDUC blocks to different filtering and oversampling scenarios. The GC6016 is a wideband transmit and receive signal processor that includes digital downconverter/upconverter (DDUC), transmit, receive, and capture buffer blocks. The transmit path includes crest factor reduction (CFR), complex equalization, and bulk upconversion. The receive path includes wideband and narrowband automatic gain control (AGC), bulk downconversion, complex equalization, and I/Q imbalance correction. The architecture supports different RX, TX, and feedback modes of operation.This provides for many configurations to optimize performance and cost.RX – real or complex inputTX – real, complex, complex with envelope tracking The RX path can be configured for one or two multichannel ADC input ports.The RX block provides each ADC channel with a front-end AGC, IQ demodulation correction, real-to-complex conversion, complex mixing, decimation, and complex equalization.The RX block output is input to the DDUC block.The output of the DDUC block goes through gain and back-end AGC and is formatted for the baseband output. There are four DDUC blocks.Each can be used for the RX DDC downconversion or TX DUC upconversion, one at a time.The DDUC has a complex mixer, cascade integrator comb filter, resampler, and a programmable FIR filter.Each DDUC can support 1 to 12 channels. The TX path can be configured for one, two, or four antenna streams.In addition, with one or two antenna streams, an envelope modulator output is available.The DAC and envelope modulator share the same output ports.The TX input is from the baseband input, through the DDUC to create complex antenna streams.The CFR block provides for gain adjustment, peak reduction, and peak limiting.Additional interpolation stages after CFR expand the antenna stream bandwidth. Specialized capture logic collects the RX input, feedback input, RX output, CFR output, and DPD output for the DSP processor to support built-in test.The capture logic can also be used for performance monitoring and power measurement. 

Integrated Transmit and Receive Digital IF Solution

Up to 4 TX, 8 RX

TX-Transmit Includes DUC, CFR, TX Equalizer, and Bulk Upconverter

CFR: 6-dB PAR for WCDMA, 7-db LTE Signals With EVM Meeting 3GPP Specs; Configurable for All Major Wireless Infrastructure Standards

RX-Receive Includes DC-Offset Cancellation, Front-End and Back-End AGC, Bulk Downconverter, RX Equalizer, I/Q Imbalance Correction, DDC

4 DDUCs, 1–12 Channels per DDUC, Each DDUC Can Be Programmed to TX or RX, at a Common Resampler Rate – Multimode Support

Seamless Interface to TI High-Speed Data Converters

4 TX Aggregate Output to DACs up to 930 MSPS Complex

8 RX Aggregate Input From ADCs up to 1.24 GSPS Real

16-Tap (Complex) RX Equalizers

Two 4K Complex Word Capture Buffers for Signal Analysis, and Adaptive Filtering

1.1-V Core, 3.3-V I/O CMOS, 1.8-V I/O LVDS

Power Consumption, 3.5 W Typical

484-Ball TE-PBGA Package, 23 mm × 23 mm

APPLICATIONS

• Multi-Standard Base Stations
• 3GPP (LTE, W-CDMA, TDS-CDMA)
• MC-GSM
• WiMAX and WiBro (OFDMA)
• Multi-Carrier Power Amplifiers (MCPAs)
• Wireless Infrastructure Repeaters
• Digital Radio Instrumentation and Test Equipment