GC5325 Overview
Description
The GC5325 is a wideband digital predistortion transmit processor that includes a crest factor reduction (CFR) block and a digital predistortion (DPD) block with its associated feedback chain and capture buffers. The GC5325 processes composite input bandwidths of up to 20 MHz and processes DPD sample rates of up to 140 MHz.
Key Features
- 23 Integrated CFR and DPD Functions
- Up to 20-MHz Combined Signal Bandwidth
- CFR: Typically Meets 3GPP TS 25.141 <6.5 dB PAR, <8 dB PAR for 802.16e Signals
- DPD: Memory Compensation, Typical ACLR Improvement of 20 dB to 30 dB or More
- Transmit- and Feedback-Channel Equalizers
- 352-Ball S-PBGA Package, 27 mm × 27 mm
- 1.2-V Core, 3.3-V I/O
- Typical Power Consumption = 1.9 W SYSTEM DAC5682Z Baseband Input GC5325 CFR–DPD DAC I/Q DAC CDCM7005
- Flexible DSP Algorithm Supports Existing and Emerging Wireless Standards
- Supports Direct Interface to TI High-Speed Data Converters
