GC5018 - Texas Instruments

GC5018 8-CHANNEL WIDEBAND RECEIVER

....... 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 ......

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 o.