0:58 Keysight AWG Models: Compares the M8199B to other Keysight AWGs, highlighting its 256 GS/s sample rate, 75 GHz bandwidth, and 5 Vpp output voltage.
3:59 DAC Architecture: Explains the architecture of the 128 GS/s, 8-bit DAC at the heart of the instrument, emphasizing the use of a distributed architecture to achieve high bandwidth.
9:45 Combining DACs: Details how two 128 GS/s DACs are combined to achieve the 256 GS/s output, discussing passive and active combiner techniques.
14:42 Teardown: A detailed teardown of the M8199B reveals the intricate design and high-quality components used, including a waveguide clock distribution system and high-speed connectors.
22:24 Output Module Analysis: Close examination of the output module highlights the use of indium phosphide and gallium arsenide amplifiers for high bandwidth and output voltage.
30:15 Test Setup: Explains the setup used to characterize the M8199B, which includes a Keysight DCA-X oscilloscope with a 110 GHz bandwidth sampling module.
33:30 Software and Calibration: Demonstrates the software interface and explains the calibration process, emphasizing the importance of system calibration for optimal signal integrity.
36:30 Eye Diagram Capture: Presents eye diagram captures at various data rates (64 GBaud to 200 GBaud) for NRZ, PAM4, and PAM8 signals, showcasing the instrument's performance.
44:12 Keysight's Measurements: Shows eye diagrams captured by Keysight under ideal conditions, highlighting the instrument's ability to maintain signal integrity at high data rates and output voltages.
45:54 Future of AWGs: Discusses potential future developments in AWG technology, such as timed analog muxes and higher bandwidth DACs, to meet the demands of next-generation applications.