Datasheet

2 Analog Interface
3 Digital Interface
Analog Interface www.ti.com
For maximum flexibility, the modular MSOP-8EVM 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 J1. This header/socket provides access to the analog input
pins of the ADC. Consult Samtec at http://www.samtec.com or call 1-800-SAMTEC-9 for a variety of
mating connector options.
Table 2. J1—Analog Interface Pinout
Pin Number Signal Description
J1.2 AD_IN+ Noninverting input for differential devices, and analog input for single-ended devices
J1.4 AD_IN– Inverting input for differential devices, and analog ground for single-ended devices
J1.6 Unused
J1.8 Unused
J1.10 Unused
Pins are unused and should be left open for use with future amplifier and sensor input
modules
J1.12 Unused
J1.14 Unused
J1.16 Unused
J1.18 REF(–) Unused
J1.20 REF(+) External reference source input
J1.15 Unused Unused
J1.1 to J1.19
AGND Analog ground connections (except J1.15)
(odd)
The modular MSOP-8EVM is designed for easy interfacing to multiple control platforms. 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. This header/socket provides access to the digital control and serial data
pins of the MSOP-8EVM. Consult Samtec at http://www.samtec.com or 1-800-SAMTEC-9 for a variety of
mating connector options.
Table 3. J2—Digital Interface Pinout
Pin Number Signal Name Description
Chip select, active low signal. Enables data transfer, jumper configurable (see the
J2.1 CS
schematic located at the end of this document)
J2.3 SCLK Serial clock
J2.5 SCLKr Serial clock return (for DSP host systems)
Frame sync for DSP host systems; alternate chip select through JMP2 (see the schematic
J2.7 FS
located at the end of this document)
J2.9 FSr Frame sync return (for DSP host systems)
J2.11 Unused Unused
J2.13 SDO Serial data output
J2.15 Unused Unused
J2.17 Unused Unused
J2.19 SPARE
4 MSOP-8EVM and MSOP-8EVM-PDK SBAU140 – December 2008
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