Datasheet

SPI IN
LNA
0 to -40dB
SPI Logic
16X CLK
LNA IN
PGA
24, 30dB
3
rd
LP Filter
10, 15, 20,
30 MHz
16 Phases
Generator
CW Mixer
Summing
Amplifier
1X CLK
1X CLK
CW I/Q Vout
AFE5808A (1 of 8 Channels)
14Bit
ADC
LVDS
ReferenceReference
Differential
TGC Vcntl
EXT/INT
REFs
16X8
Crosspoint SW
SPI OUT
VCAT
AFE5808A
SLOS729B –OCTOBER 2011–REVISED APRIL 2012 www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
DESCRIPTION CONTINUED
The AFE5808A also integrates a low power passive mixer and a low noise summing amplifier to accomplish on-
chip CWD beamformer. 16 selectable phase-delays can be applied to each analog input signal. Meanwhile a
unique 3
rd
and 5
th
order harmonic suppression filter is implemented to enhance CW sensitivity.
The AFE5808A is available in a 15mm × 9mm, 135-pin BGA package and it is specified for operation from 0°C to
85°C. It is also pin-to-pin compatible to the AFE5807, AFE5803, and AFE5808.
Figure 1. Block Diagram
PACKAGING/ORDERING INFORMATION
(1)
TRANSPORT MEDIA,
PRODUCT PACKAGE TYPE OPERATING ORDERING NUMBER
QUANTITY
AFE5808A ZCF 0°C to 85°C AFE5808AZCF Tray, 160
(1) For the most current package and ordering information see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
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Product Folder Links: AFE5808A