Patent ID: 11881281
Assignee: CHANGXIN MEMORY TECHNOLOGIES, INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 0:
1. A dual reference voltage generator, applied to an equalizer circuit,
wherein the dual reference voltage generator is configured to receive an original code, a first code and a second code, generate a first reference voltage according to the original code and the first code, and generate a second reference voltage according to the original code and the second code, the first reference voltage being different from the second reference voltage;
the dual reference voltage generator comprises: a first processing circuit, a second processing circuit, a first selector, a second selector, a first output buffer circuit, a second output buffer circuit and a voltage divider circuit;
two input terminals of the first processing circuit are configured to respectively receive the first code and the original code, and an output terminal of the first processing circuit is connected to a control terminal of the first selector;
two input terminals of the second processing circuit are configured to respectively receive the second code and the original code, and an output terminal of the second processing circuit is connected to a control terminal of the second selector;
one or more output terminals of the voltage divider circuit are respectively connected to one or more input terminals of the first selector and one or more input terminals of the second selector; and
an output terminal of the first selector is connected to an input terminal of the first output buffer circuit, an output terminal of the second selector is connected to an input terminal of the second output buffer circuit, the first reference voltage is output from an output terminal of the first output buffer circuit, and the second reference voltage is output from an output terminal of the second output buffer circuit.