Patent ID: 11954286
Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 19:
20. The method of claim 18, further comprising:
in a first half-cycle of the readout cycle:
setting a passive mixer to a pass-through configuration; and
performing the charging, the discharging, and the outputting with the passive mixer in the pass-through configuration; and

in a second half-cycle of the readout cycle:
setting the passive mixer to a swapped configuration; and
performing the charging, the discharging, and the outputting with the passive mixer in the swapped configuration,

wherein the passive mixer receives the discharge voltage level of the Vin node at a first input, receives either another discharge voltage level associated with an adjacent channel or receives a common-mode reference voltage level at a second input, and produces the pair of up-converted channel signals at first and second outputs by:
in the pass-through configuration, coupling the first input with the first output and the second input with the second output; and
in the swapped configuration, coupling the first input with the second output and the second input with the first output.