Michael T Mcgowan

US Patent:

20150349793, Dec 3, 2015

Filed:

Nov 4, 2014

Appl. No.:

14/532264

Inventors:

- San Diego CA, US
Shahin Mehdizad Taleie - San Diego CA, US
Michael Joseph McGowan - Mesa AZ, US
Jenny Kuo - San Diego CA, US
Dongwon Seo - San Diego CA, US
Jalal Ahmad Elhusseini - San Diego CA, US

International Classification:

H03M 1/10
H03M 1/68

Abstract:

A method and apparatus for a method of calibrating a transmit digital to analog converter full-scale current. The method comprises generating a tuned reference current and then calibrating the tuned reference current to a selected value in order to produce a predetermined current value. The calibration further comprises dividing a reference voltage input over a resistor string. A band gap current is then generated using the divided reference voltage input. A tuned current output is then produced from a current steering digital to analog converter with the tuned output current stored in a register. The reference current for the transmit DAC is then generated based on the stored tuned output current.

US Patent:

20150341025, Nov 26, 2015

Filed:

Sep 16, 2014

Appl. No.:

14/487654

Inventors:

- San Diego CA, US
Sang Min LEE - San Diego CA, US
Michael Joseph McGOWAN - Mesa AZ, US
Dongwon SEO - San Diego CA, US

International Classification:

H03K 17/16

Abstract:

A method and apparatus are provided. The apparatus may be a capacitive element for adjusting a net capacitance of a circuit. The apparatus may be configured to be coupled to the circuit. The apparatus may be configured to adjust the net capacitance of the circuit to decouple common mode and differential loop bandwidth adjustment of the circuit. The capacitive element may include a pair of cross-coupled capacitors configured to be coupled to differential nodes of the circuit, and a pair of negative gain buffers coupled to respective capacitors.