GC5330
GC5337
www.ti.com
SLWS226 B –DECEMBER 2010–REVISED JANUARY 2011
Wideband Transmit-Receive Digital Signal Processors
Check for Samples: GC5330, GC5337
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FEATURES
APPLICATIONS
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Multi-Standard Base Stations
3GPP (LTE, W-CDMA, TDS-CDMA)
MC-GSM
WiMAX and WiBro (OFDMA)
Multi-Carrier Power Amplifiers (MCPAs)
Wireless Infrastructure Repeaters
Up to 4 × 4 MIMO
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Integrated Transmit and Receive Digital IF
Solution
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Up to 4 TX, 8 RX, Plus DPD Feedback
TX-Transmit Includes DUC, CFR, DPD, TX
Equalizer, and Bulk Upconverter
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62-MHz TX Signal Bandwidth With Fifth-Order
DPD Correction
CFR: 6-dB PAR for WCDMA, 7-db LTE Signals
With EVM Meeting 3GPP Specs; Configurable
for All Major Wireless Infrastructure Standards
DESCRIPTION
The GC533x 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), digital predistortion (DPD) and
associated feedback path, complex equalization, and
bulk upconversion.
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DPD: Memory Compensation, Typical ACLR
Improvement of 20 dB or More
RX-Receive Includes DC-Offset Cancellation,
Front-End and Back-End AGC, Bulk
Downconverter, RX Equalizer, I/Q Imbalance
Correction, DDC
The receive path includes wideband and narrowband
automatic gain control (AGC), bulk downconversion,
complex equalization, and I/Q imbalance correction.
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4 DDUCs, 1–12 Channels per DDUC, Each
DDUC Can Be Programmed to TX or RX, at a
Common Resampler Rate – Multimode
Support
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
supported by configuring the individual DDUC blocks
to different filtering and oversampling scenarios.
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Seamless Interface to TI High-Speed Data
Converters
4 TX Aggregate Output to DACs up to
930 MSPS Complex
operation
can
be
8 RX Aggregate Input From ADCs up to
1.24 GSPS Real
DAC3484
TRF3703/3720
I/Q Mod
C6748
DSP
Complex
TX
PA
PA
PA
PA
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Supports Envelope Tracking Techniques
16-Tap (Complex) RX Equalizers
DAC
I/Q
I/Q Mod
I/Q Mod
I/Q Mod
Two 4K Complex Word Capture Buffers for
Signal Analysis, Adaptive Filtering, and DPD
Algorithms
DAC
I/Q
FB
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TMS320C6748 DPD Optimization Software
1.1-V Core, 3.3-V I/O CMOS, 1.8-V I/O LVDS
Power Consumption, 3.5 W Typical
ADS61B49
ADC
Subsampled
Feedback
SW
Mixer/BPF
Baseband
Data
GC533x
DUC-CFR
DPD
ADS62P49
ADC
DDC
RX
RX
Mixer/BPF
Mixer/BPF
LNA
484-Ball TE-PBGA Package, 23 mm × 23 mm
Real
RX
ADC
LNA
ADS62P49
ADC
RX
RX
Mixer/BPF
Mixer/BPF
LNA
LNA
Real
RX
ADC
B0441-01
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Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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