18650605. WAKEUP RECEIVER (Texas Instruments Incorporated)
WAKEUP RECEIVER
Organization Name
Texas Instruments Incorporated
Inventor(s)
Danielle Griffith of Richardson TX US
WAKEUP RECEIVER
This abstract first appeared for US patent application 18650605 titled 'WAKEUP RECEIVER
Original Abstract Submitted
A circuit includes a receiver configured to couple to an antenna, configured to have a wakeup mode and an active mode, and to transition from the wakeup mode to the active mode in response to a wakeup signal received through the antenna. The receiver includes an impedance matching circuit coupled with the antenna, a low-noise amplifier coupled with the impedance matching circuit, a mixer coupled with the low-noise amplifier, a radio-frequency reference clock generator coupled with the mixer, a low-pass filter coupled with the mixer, an analog-to digital-converter coupled with the low-pass filter, and a control circuit configured to transition the receiver from the wakeup mode to the active mode in response to the wakeup signal. The low-noise amplifier, the mixer, the radio frequency reference clock generator, and the analog-to-digital converter are configured to be duty-cycled between a sleep state and an active wakeup receive state during the wakeup mode.