| 发明名称 |
CIRCUIT INTERFACING SINGLE-ENDED INPUT TO AN ANALOG TO DIGITAL CONVERTER |
| 摘要 |
In embodiments, a circuit includes a single-ended input coupled to a first input of a differential filter. The differential filter is coupled to an analog to digital converter (ADC), and the single-ended input includes an input DC bias voltage level and an input signal. A reference generator circuit is coupled to a second input of the differential filter. The reference generator circuit generates a reference bias voltage. The differential filter includes a first filter coupled to the singled ended input and to the ADC and a second filter coupled to the reference generator circuit and to the ADC. The first filter is configured to receive the input DC bias voltage level and input signal. The second filter is configured to receive the reference bias voltage. |
| 申请公布号 |
US2015244385(A1) |
申请公布日期 |
2015.08.27 |
| 申请号 |
US201414549445 |
申请日期 |
2014.11.20 |
| 申请人 |
QUALCOMM Incorporated |
发明人 |
Alladi Dinesh Jagannath;Hafiz Omar;Dagher Elias Hani |
| 分类号 |
H03M1/06;H03M1/18;H03M1/12 |
主分类号 |
H03M1/06 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A circuit comprising:
a single-ended input coupled to a first input of a differential filter, wherein the differential filter is coupled to an analog to digital converter (ADC), and wherein the single-ended input comprises an input DC bias voltage level and an input signal; and a reference generator circuit coupled to a second input of the differential filter, the reference generator circuit generating a reference bias voltage, wherein the differential filter comprises: a first filter coupled to the singled ended input and to the ADC, the first filter configured to receive the input DC bias voltage level and input signal; and a second filter coupled to the reference generator circuit and to the ADC, the second filter configured to receive the reference bias voltage. |
| 地址 |
San Diego CA US |
