A good PCB layout for PGA206UA involves keeping the input and output traces short and symmetrical, using a solid ground plane, and placing the device close to the input and output connectors. TI provides a recommended PCB layout in the application note SLAA642.
The gain setting of PGA206UA can be optimized by selecting the appropriate gain resistor values based on the input signal amplitude and desired output signal level. TI provides a gain calculation tool and application notes to help with this process.
The maximum input signal amplitude that PGA206UA can handle without distortion is approximately 2.5Vpp differential, but this can vary depending on the gain setting and output load. It's recommended to consult the datasheet and application notes for more information.
While PGA206UA is designed for differential input and output, it can be used in a single-ended configuration with some limitations. However, this may affect the noise performance and common-mode rejection ratio (CMRR). Consult the datasheet and application notes for more information.
To ensure EMI compliance, follow proper PCB layout and shielding techniques, use a low-pass filter at the output, and consider using a shielded enclosure. TI provides EMI reduction techniques in the application note SLAA643.
PGA206UA datasheet
by Texas Instruments
