PCM4204EVM, High-performance, Four-Channel Audio Analog-to-digital (A/D) converter

PCM4204EVM provides a convenient platform for evaluating the performance and functionality of the PCM4204 device. There are two PCM4204 on this EVM one for input and output signals and a second to support the conversion test mode and a demo mode. Input audio signals are buffered and filtered using low noise input circuits, utilizing the OPA1632 Op-Amps. Manual resets are provided for both PCM4204 devices and the AES3 transmitters. That is, an ADC RESET switch and a DIT RESET switch are utilized separately for resetting the AES3 transmitters. The system can accept external oscillators, or use the on-board crystal oscillators, as clock sources. The on-board crystals provide a low jitter clock to measure the performance of the two PCM4204 devices. Analog and digital power supply voltages are connected to the board through on-board terminals