Invention Grant
- Patent Title: Data independent periodic calibration using per-pin VREF correction technique for single-ended signaling
-
Application No.: US15169156Application Date: 2016-05-31
-
Publication No.: US09711239B2Publication Date: 2017-07-18
- Inventor: Pravin Kumar Venkatesan , Kashinath Prabhu , Makarand Shirasgaonkar , Wayne Dettloff
- Applicant: RAMBUS INC.
- Applicant Address: US CA Sunnyvale
- Assignee: Rambus Inc.
- Current Assignee: Rambus Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Lowenstein Sandler LLP
- Main IPC: G11C7/00
- IPC: G11C7/00 ; G11C29/02 ; G11C7/10 ; G11C5/14 ; G11C7/04 ; G11C11/4099 ; G11C11/4076 ; G11C29/52 ; H03M1/66 ; G11C29/04
Abstract:
A single-ended receiver includes an internal voltage generation circuit to set a first internal reference voltage (Vref). A model voltage generation circuit is configurable to receive an external reference voltage to be calibrated during an initial calibration. The model voltage generation circuit is configurable to track an offset value for voltage-temperature (VT) drift and the offset value is applied to the internal voltage generation circuit to calibrate the internal Vref during a periodic calibration of the single-ended receiver.
Public/Granted literature
- US20160372210A1 DATA INDEPENDENT PERIODIC CALIBRATION USING PER-PIN VREF CORRECTION TECHNIQUE FOR SINGLE-ENDER SIGNALING Public/Granted day:2016-12-22
Information query
