The EVAL-AD1974AZ is an evaluation board for the AD1974 four ADC with PLL 192KHz, 24bit codec. The evaluation board must be connected to an external ±12V dc power supply and ground. On-board regulators derive the 3.3V supplies for the AD1974. The AD1974 is controlled through an SPI interface. A small external interface board, EVAL-ADUSB2EBZ (also called USBi),connects to a PC USB port and provides SPI access to the evaluation board through a ribbon cable. A graphical user interface (GUI) program is provided for easy programming of the chip in a Microsoft windows PC environment. The evaluation board allows demonstration and performance testing of most AD1974 features, including the four ADCs, as well as the digital audio ports. Additional analog circuitry (ADC input filter/buffer) and digital interfaces such as S/PDIF are provided to ease product evaluation. All analog audio interfaces are accessible with stereo audio 3.5mm TRS connectors.
- Phase locked loop generated or direct master clock
- Low EMI design
- 107dB dynamic range and SNR
- Supports 24bits and 8KHz to 192KHz sample rates
- Differential ADC input
- SPI controllable for flexibility
- Software-controllable clickless mute
- Software power down
多媒体, 音频, 成像, 视频和目视, 车用, 消费电子产品
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