Evm Block Diagram; Simplified Adc344X Evm Block Diagram - Texas Instruments ADC3EVM User Manual

Introduction
1.1

EVM Block Diagram

Figure 1 and Figure 2
four analog inputs are supplied to the EVM through a single-ended SMA connection, then transformer
coupled to turn the single-ended signal into a balanced differential signal, and then input to the ADC32xxx
or ADC34xxx. A dual transformer input circuit is used for better phase and amplitude balance of the input
signal than is typically produced by a single transformer input circuit.
CH A
CH B
CLK IN
CH C
CH D
4
ADC3xxxEVM and ADC3xJxxEVM
show simplified block diagrams of the default configuration of the EVM. The two or
14bit
ADC
14bit
ADC
14bit
ADC
14bit
ADC
USB
To
SPI
USB
Figure 1. Simplified ADC344x EVM Block Diagram
Copyright © 2014–2018, Texas Instruments Incorporated
ADC34xx
2
DAB P/M sLVDS
Digital
Block
DCLK
+
Output
Formatter
FCLK
2
DCD P/M sLVDS
Power
Supply
Circuits
SLAU579D – June 2014 – Revised August 2018
www.ti.com
5V
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