GENERAL DESCRIPTION
All other signal processing (e.g., DSP) is carried out in the digital domain. This approach provides superior stability and accuracy over extremes in environmental conditions and over time. The FS7755 supplies average real power information on the low-frequency outputs F1 and F2. These logic outputs may be used to directly drive an electromechanical counter or interface to an MCU. The CF logic output gives instantaneous real power information. This output is intended to be used for calibration purposes or for interfacing to an MCU. The FS7755 includes a power supply monitoring circuit on the AVDD supply pin. The FS7755 will remain in a reset condition until the supply voltage on AVDD reaches 4V. If the supply falls below 4V, the FS7755 will also be reset and no pulses will be issued on F1, F2, and CF. An internal no load threshold ensures that the FS7755 does not exhibit any creep when there is no load. The FS7755 is available in a 24-lead SSOP package. 2. FEATURES
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Fortune
