GC5322 Overview
Description
The GC5322 is a wideband digital predistortion transmit processor that includes a digital upconverter (DUC) block, crest factor reduction (CFR) block, feedback (FB) block, digital predistortion (DPD) block, and capture buffer (CB) blocks. The GC5322 is operated in single-antenna mode with shared or individual feedback paths.
Key Features
- 2 Integrated DUC, CFR, and DPD Solutions
- 40-MHz (28-Mhz) Signal Bandwidth, Third (Fifth)-Order Expansion BW in DPD Section, Maximum Complex Rate 140 Mhz
- DUC: up to 12 CDMA2000 or TD-SCDMA, 4 W-CDMA, 3–10 MHz or 1–20 MHz OFDMA Carriers
- CFR: Typically Meets 3GPP TS 25.141 <6.5-dB PAR, <8-dB PAR for OFDMA Signals
- DPD: Short-Term and Long-Term Memory Compensation to 1 µs, Typical ACLR Improvement > 20 dB
- Single-Antenna TX Mode, Single or Shared Feedback
- 352-Ball S-PBGA Package, 27-mm × 27-mm
- 1.2-V Core, 1.8-V HSTL, 3.3-V I/O
- Typical Power Consumption < 2.5 W, Configuration Dependent
- Flexible DSP Algorithm Supports Existing and Emerging Wireless Standards
