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New 16-bit AIC provides glueless interface to TMS320 DSPsTI has announced the TLC320AD56, a 16-bit analog interface circuit (AIC) that provides high-resolution, sigma-delta analog-to-digital and digital-to-analog signal conversion. It also provides a glueless interface, via serial port, to TMS320 DSPs reducing overall system cost and board space. The TLC320AD56 offers a typical signal/distortion ratio of 103 dB at 3V and 85 dB at 5V on the ADC channel, and 96 dB on the DAC channel. Other features include a programmable serial port interface, power dissipation of 100 mW and 2.5 mW power down (typical), and internal 64x oversampling. The 'AD56 consists of two serial synchronous conversion paths, one for each data direction, and a pre-DAC interpolation filter and a post-ADC decimation filter. Other overhead functions include on-chip timing and control and a digital loopback function that allows for in-circuit system-level tests. Key applications for the 'AD56 include V.34+ modems, PCMCIA modems, industrial process controls, as well as other general-purpose AIC functions. The TLC320AD56 is available in the 28-pin PLCC (plastic lead chip carrier) package and the 48-pin TQFP (thin quad flat pack) package, and will be available in the 28-pin SOIC package. US suggested resale pricing for the 'AD56 is $4.15 in quantities of 1,000. An EVM is available for the 'AD56, which includes an application note on interfacing the 'AD56 to the TMS320C5x DSK. To order the EVM in the US, call (800) 317-8354. In Europe, the 'AD56 EVM (part no. AD56-EVM) is available from TI and authorized distributors. For more information, see the TLC320AD56 or the TI Mixed-Signal home page. |