Patent ID: 8253440
Filing Date: 2012-08-28
Classification: G11C,H03K

Abstract:
1. A system, comprising: a push-pull driver, including a receive termination, a differential transmit termination, and current drivers; an adjustable calibration resistor; and a calibration system to calibrate the adjustable calibration resistor relative to a second resistor at a voltage within an operating voltage range of the push-pull driver, and to calibrate the push-pull driver relative to the adjustable calibration resistor at a voltage within the operating voltage range of the push-pull driver, including to calibrate the receive termination and the differential transmit termination relative to the adjustable calibration resistor, and to calibrate the current drivers relative to the differential transmit termination; wherein the push-pull driver and the adjustable calibration resistor are implemented on an integrated circuit die.