Datasheet

Analog Interface

www.ti.com

1.1 Features

• Full-featured evaluation board for a variety of single-channel, 6-pin SC70 DAC, 6- to 14-bit, serial

input, digital-to-analog converters

• Onboard reference and buffer circuits

• High-speed serial interface

• Modular design for use with a variety of DSP and SC70 DAC controller interface boards

1.2 Introduction

The SC70 DAC Evaluation Module is an evaluation board containing all the necessary components to

evaluate the 6-pin, SC70 series of high-performance, digital-to-analog converters from Texas Instruments.

The EVM is designed so that a single printed-circuit board (PCB) supports the entire family of high-speed,

12- and 16-bit serial DACs.

The modular EVM form factor allows for direct evaluation of the DAC's performance and operating

characteristics. This EVM is compatible with the 5-6K Interface Board (SLAU104) from Texas Instruments

as well as the HPA-MCU Interface Board (SLAU106). As part of a SC70 DACEVM-PDK kit, this EVM is

supported on the DXP Platform using the modular motherboard MMB0.

2 Analog Interface

For maximum flexibility, the SC70 DAC evaluation module (EVM) is designed for easy interfacing to

multiple analog sources. Samtec part numbers SSW-110-22-F-D-VS-K and TSM-110-01-T-DV-P provide a

convenient 10-pin, dual-row, header/socket combination at J2 (Table 1). This header/socket provides

access to the analog input pins of the ADC. Consult Samtec at www.samtec.com, or call

1-800-SAMTEC-9 for a variety of mating connector options.

Features:

• Full-featured evaluation board for a variety of single-channel, 6-pin SC70 DAC, 6- to 14-bit, serial

input, digital-to-analog converters

• Onboard reference and buffer circuits

• High-speed serial interface

• Modular design for use with a variety of DSP and SC70 DAC controller interface boards

Table 1. Analog Interface

Pin Number Signal Description

J2.2 DAC OUT_A12 Single DAC out option via JP3

J2.4 Unused

J2.6 Unused

J2.8 DAC OUT_A2 Single DAC out option via JP3

J2.10 Unused

J2.12 Unused

J2.14 Unused

J2.16 Unused

J2.18 REF(-) Unused

J2.20 REF(+) External reference source input (2.5 V nominal, 2.525 V maximum)

J2.15 Unused

J2.1–J2.19 (odd) AGND Analog ground connections (except J2.15)

SC70 DAC EVM SLAU299–November 2009

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