AFE8406

www.ti.com 1 Introduction AFE8406 14-BIT, 85 MSPS DUAL ADC, 8-CHANNEL WIDEBAND RECEIVER SLWS168C – MAY 2005 – REVISED OCTOBER 2008 1.1 FEATURES 14-Bit 85-MSPS High-Performance Dual ADC Dual ADC Can Be Configured Into Single ADC At fin = 140 MHz, SNR ≥ 71 dBFS, SFDR ≥ 79 dBc At fin = 70 MHz, SNR ≥ 73 dBFS, SFDR ≥ 85 dBc Independent Clocks for ADC and DDC With Built-In FIFO Programmable Closed Loop VGA Control With 6-Bit Outputs for Each ADC Received Total Wideband 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/TD-SCDMA DDC Channels With Programmable 18-Bit Filter Coefficients Each DDC Channel Provides: – Real or Complex DDC Inputs – 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 – Individual Channel Specific Power Measurements – A Dedicated Final AGC Test Bus to Monitor Data at Different Stages of the DDC Signal Path 3.3-V Analog Supplies, 1.5-V Digital Core Supply, 3.3-V Digital I/O Supply 484-Ball Plastic BGA (23 mm × 23 mm) With 1,0-mm Pitch Power Dissipation (Eight Active DDC Channels): 2.7 W 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...