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GC5018IZDL
8 channel wideband digital down converter with front end AGC 305-BGA -40 to 85
Not Recommended for New Designs
GC5018
www.ti.com SLWS169B –MAY 2005–REVISED OCTOBER 2013
GC5018 8-CHANNEL WIDEBAND RECEIVER
Checkfor Samples: GC5018 Introduction
1.1 FEATURES Four 16-Bit CMOS ADC Input Ports • 1.5V Digital Core Supply, 3.3V Digital I/O
Supply• Programmable Closed Loop VGA Control With
6-Bit Outputs for Each ADC Input Port • 305 Ball Plastic BGA (19 mmx19 mm) With 1.0 Pitch• Provide Received Total Wide Band Power
(RTWP) Measurement for the Composite Power • Power Dissipation: 2.5W
Across Carriers With Programmable Time
Window for Measurement 1.2 APPLICATIONS•8 UMTS Digital Down Converter (DDC) • Wireless Base Station ReceiverChannelsor 16 CDMAor16 TD-SCDMA DDC Multi-Carrier Digital ReceiverChannels With Programmable18 Bit Filter
Coefficients • UMTS(4 Carriers-1 Sector With Diversity) Each DDC channel includes • CDMA(8 Carriers-1 Sector With Diversity)– Realor Complex DDC Inputs • TD-SCDMA (16 Carriers-1 Sector Without– 115 dB SFDR NCO Diversity,8 Carriers-1-Sector With Diversity)– UMTS Mode Rx Filtering:6 Stage CIC (m=1 • Digital Radio Receiversor 2), Upto40 Tap CFIR, Upto64 Tap PFIR Wide Band Receivers– CDMA Mode Rx Filtering:6 Stage CIC (m=1 2), Upto64 Tap CFIR, Upto64 Tap PFIR • Software Radios Power Measurements • Wireless Local Loop Final AGC • Intelligent Antenna Systems
1.3 DESCRIPTIONThe GC5018isa multi-channel communications signal processor that provides digital downconversion
optimized for cellular base transceiver systems. The device supports UMTS, CDMA-1X and TD-SCDMA
air interface cellular standards. upto8 UMTS digital downconverter channels (DDC), 16 CDMA DDCsor 16 TD- DDC channels are independent and operate simultaneously. four inputs. Each DDC channel canbe programmedto accept data from any one input mode)of the four input ports.
