GC5018_06 Datasheet, PDF (1/134 Pages) Texas Instruments – 8-CHANNEL WIDEBAND RECEIVER

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GC5018
8-CHANNEL WIDEBAND RECEIVER
SLWS169A – MAY 2005 – REVISED NOVEMBER 2005
1 Introduction
1.1 FEATURES
• Four 16-Bit CMOS ADC Input Ports
• Programmable Closed Loop VGA Control With
6-Bit Outputs for Each ADC Input Port
• Provide Received Total Wide Band Power
(RTWP) Measurement for the Composite
Power Across Carriers With Programmable
Time Window for Measurement
• 8 UMTS Digital Down Converter (DDC)
Channels or 16 CDMA or 16 TD-SCDMA DDC
Channels With Programmable 18 Bit Filter
Coefficients
• Each DDC channel includes
– Real or Complex DDC Inputs
– 115 dB SFDR NCO
– UMTS Mode Rx Filtering: 6 Stage CIC (m=1
or 2), Up to 40 Tap CFIR, Up to 64 Tap PFIR
– CDMA Mode Rx Filtering: 6 Stage CIC (m=1
or 2), Up to 64 Tap CFIR, Up to 64 Tap PFIR
– Power Measurements
– Final AGC
• 1.5V Digital Core Supply, 3.3V Digital I/O
Supply
• 305 Ball Plastic BGA (19 mm x 19 mm) With
1.0 mm Pitch
• Power Dissipation: 2.5W
1.2 APPLICATIONS
• Wireless Base Station Receiver
• Multi-Carrier Digital Receiver
• UMTS (4 Carriers-1 Sector With Diversity)
• CDMA (8 Carriers-1 Sector With Diversity)
• TD-SCDMA (16 Carriers-1 Sector Without
Diversity, 8 Carriers-1-Sector With Diversity)
• Digital Radio Receivers
• Wide Band Receivers
• Software Radios
• Wireless Local Loop
• Intelligent Antenna Systems
Contents
1 Introduction ............................................... 1
1.1 FEATURES ........................................... 1
1.2 APPLICATIONS ...................................... 1
2 General Description ..................................... 2
3 RECEIVE DIGITAL SIGNAL PROCESSING ......... 2
3.1 Receive Input Interface ............................... 3
3.2 DDC Organization................................... 15
4 GC5018 GENERAL CONTROL ....................... 44
4.1 Microprocessor Interface Control Data, Address,
and Strobes ......................................... 44
4.2 Synchronization Signals............................. 46
4.3 Interrupt Handling ................................... 48
4.4 GC5018 Programming .............................. 48
5 GC5018 PINS........................................... 122
5.1 Digital Receive Section Signals.................... 122
5.2 Microprocessor Signals ............................ 126
5.3 JTAG Signals ...................................... 127
5.4 Factory Test and No Connect Signals ............. 127
5.5 Power and Ground Signals ........................ 127
5.6 Digital Supply Monitoring .......................... 128
5.7 JTAG ............................................... 128
6 SPECIFICATIONS ..................................... 128
6.1 ABSOLUTE MAXIMUM RATINGS................. 128
6.2 RECOMMENDED OPERATING CONDITIONS ... 129
6.3 THERMAL CHARACTERISTICS .................. 129
6.4 DC CHARACTERISTICS .......................... 129
6.5 AC TIMING CHARACATERISTICS................ 130
7 Revision History ...................................... 131
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this document.
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.
Copyright © 2005–2005, Texas Instruments Incorporated