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Part Number: AFE8406
Description: The AFE8406 is a multi-channel communications signal processor that provides analog to digital convers...
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AFE8406
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DataSheet
General Description
AFE8406 General Description
The AFE8406 is a multi-channel communications signal processor that provides analog to digital conversion and digital downconversion optimized for cellular base transceiver systems. The device supports UMTS, CDMA-1X and TD-SCDMA air interface cellular standards.
The AFE8406 provides up to 8 UMTS digital downconverter channels (DDC), 16 CDMA DDCs or 16 TDSCDMA DDCs. The DDC channels are independent and operate simultaneously.
At the AFE8406 inputs, there are four input ports; two are hardwired to internal 14-bit analog-to-digital converters and two are 16-bit digital inputs. Each DDC channel can be programmed to accept data from any one of the four input ports.
AFE8406 Features
· 14-bit 85 MSPS high performance dual ADC
· The dual ADC can be configured into single ADC
· At Fin=140MHz, SNR>=68dB, SFDR>=70dBc
· At Fin = 70MHz, SNR>=70dB, SFDR>=82dBc
· Independent clocks for ADC and DDC with build-in FIFO
· Programmable closed loop VGA control with 6-bit outputs for each ADC
· 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/TD-SCDMA DDC channels with programmable 18 bit filter coefficients
· Each DDC channel includes
o Real or complex DDC inputs
o UMTS mode Rx Filtering: 6 stage CIC (m=1 or 2), up to 40 tap CFIR, up to 64 tap PFIR
o CDMA mode Rx Filtering: 6 stage CIC (m=1 or 2), up to 64 tap CFIR, up to 64 tap PFIR
o Each DDC channel provides individual channel specific power measurements
o Each DDC channel has a dedicated final AGC
· Test Bus to monitor data at different stages of the DDC signal path
· 3.3V analog supplies, 1.5V digital core supply, 3.3V digital I/O supply
· 484 ball plastic BGA (23mm x 23mm) with 1.0 mm pitch
· Power dissipation: ~2.1W
· The dual ADC can be configured into single ADC
· At Fin=140MHz, SNR>=68dB, SFDR>=70dBc
· At Fin = 70MHz, SNR>=70dB, SFDR>=82dBc
· Independent clocks for ADC and DDC with build-in FIFO
· Programmable closed loop VGA control with 6-bit outputs for each ADC
· 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/TD-SCDMA DDC channels with programmable 18 bit filter coefficients
· Each DDC channel includes
o Real or complex DDC inputs
o UMTS mode Rx Filtering: 6 stage CIC (m=1 or 2), up to 40 tap CFIR, up to 64 tap PFIR
o CDMA mode Rx Filtering: 6 stage CIC (m=1 or 2), up to 64 tap CFIR, up to 64 tap PFIR
o Each DDC channel provides individual channel specific power measurements
o Each DDC channel has a dedicated final AGC
· Test Bus to monitor data at different stages of the DDC signal path
· 3.3V analog supplies, 1.5V digital core supply, 3.3V digital I/O supply
· 484 ball plastic BGA (23mm x 23mm) with 1.0 mm pitch
· Power dissipation: ~2.1W
AFE8406 Typical Application
· 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
· 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
AFE8406
PDF/DataSheet Download
- Datasheet: AFE8406
- File Size: 6042579 KB
- Manufacturer: TI [Texas Instruments]
- Click here to Download
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