RX controls are

located on this tab

This section controls

power down options

on digital RX chain

The power meter

indicates the input

power level to the two

ADCs

Mixing section controls gain, offset,

mixing mode and NCO

This section controls

auxiliary ADC and its

mux input

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TX Setup

The other portion of the RX setup is located on the

‘Receive Control’ tab which includes register access

for the mixing stage, power meter and power options for the digital RX section. Also the auxiliary ADC

registers are configured on this tab.

8

TX Setup

For the transmit output, the AFE722x EVM provides an option to directly route the DACs to SMA

connectors as well as an option to connect the dual DAC to an IQ modulator (TRF3703) for direct

up-conversion. The schematic below shows the two options and the relevant 0

Ω resistors to switch

between them.

When using the IQ modulator, there is a separate SMA connector on the EVM for the LO input. Also there

is a low pass filter between DAC and IQ modulator for image suppression with a default cut off frequency

of 125 MHz.

13

SLOU330

– December 2011

EVM Description

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