GC5322 具有集成数字预失真、数字上变频的宽带发送 IC 解决方案

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.

The GC5322 GPP block receives the interleaved IQ data from the baseband input. The individual IQ channels are then routed to the DUC. The GPP and DUC can be bypassed to input a combined IQ signal. The DUC provides three stages of interpolation and a complex mixer. There are two DUC blocks. The output from the DUC blocks is combined in the sum chain. Each of the 1 to 12 DUC channels can be summed, and the composite signal can be scaled

	GC5322	GC5325	GC5328
Baseband Input Clock (Max) (MHz)	140	140	100
DPD Function (Y/N)	Y	Y	Y
CFR Function (Y/N)	Y	Y	Y
DUC Function (Y/N)	Y	N	Y
No. of Transmitter Ports	1	1	1
Resolution of BB Input Port (Bits)	18	18	18
Narrowband Channels (DUC)	12		12
Wideband Channels (DUC)	4		4
Operating Temperature Range (C)	-40 to 85	-40 to 85	-40 to 85
No. of Supply Voltages	3	3	3
Power Dissipation (Typ) (W)	2.5	1.9	2.5
Pin/Package	352BGA	352BGA	484BGA
Approx. Price (US$)	62.00 \| 1ku	56.00 \| 1ku	56.00 \| 1ku
DPD Expansion BW (Max) (MHz)	140	140	100
CFR Input Sample Rate (Max) (MSPS)	70	70	50
DUC Input Clock Rate (Max) (MHz)	92.5		66
Core Supply Voltage (Typ) (V)	1.2	1.2	1.2
I/O Supply Voltage 1 (Typ) (V)	1.8	1.8	1.8
I/O Supply Voltage 2 (Typ) (V)	3.3	3.3	3.3

GC5322 特性

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
Supports Direct Interface to TI High-Speed Data Converters
APPLICATIONS
- 3GPP (W-CDMA) Base Stations
- 3GPP2 (CDMA2000) Base Stations
- WiMAX, WiBro, and LTE (OFDMA) Base Stations
- Multicarrier Power Amplifiers (MCPAs)

GC5322 芯片订购指南

器件	状态	温度	价格	封装 \| 引脚	封装数量 \| 封装载体	丝印标记
GC5322IZND	ACTIVE	-40 to 85	62.00 \| 1ku	BGA (ZND) \| 352	40 \| JEDEC TRAY (10+1)

GC5322 质量与无铅数据

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
GC5322IZND	Pb-Free (RoHS)	SNAGCU	Level-3-260C-168 HR	GC5322IZND	GC5322IZND

GC5322 工具与软件

培训内容	型号	软件/工具类型
GC5322 Evaluation Module	GC5322EVM	开发电路板/EVM