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1.发明申请CURRENT TYPE D/A CONVERTER, DELTA SIGMA MODULATOR, AND COMMUNICATIONS DEVICE 有权电流型D / A转换器，DELTA SIGMA调制器和通信设备公开(公告)号：US20160126973A1
公开(公告)日：2016-05-05
申请号：US14991368
申请日：2016-01-08
Applicant: SOCIONEXT INC.
Inventor： Yosuke Mitani , Takashi Morie , Kazuo Matsukawa , Masashi Uchida
CPC classification number: H03M3/502 , H03M1/0656 , H03M1/0863 , H03M1/742 , H03M1/745 , H03M3/464
Abstract: This D/A converter includes a plurality of D/A converter elements, each comprising current sources configured to supply output currents to output nodes, and first switches configured to control the output currents. The output nodes are connected to a capacitor section having second switches and a capacitive load. The D/A converter further includes a switch control circuit configured to control the first switches responsive to digital signals, and also control the second switches in accordance with the control of the ON/OFF state of the first switches.
Abstract translation: 该D / A转换器包括多个D / A转换器元件，每个D / A转换器元件包括被配置为向输出节点提供输出电流的电流源和被配置为控制输出电流的第一开关。 输出节点连接到具有第二开关和容性负载的电容器部分。 D / A转换器还包括开关控制电路，其被配置为响应于数字信号来控制第一开关，并且还根据第一开关的接通/断开状态的控制来控制第二开关。
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2.发明授权Current type D/A converter, delta sigma modulator, and communications device 有权电流型D / A转换器，ΔΣ调制器和通信设备公开(公告)号：US09438268B2
公开(公告)日：2016-09-06
申请号：US14991368
申请日：2016-01-08
Applicant: SOCIONEXT INC.
Inventor： Yosuke Mitani , Takashi Morie , Kazuo Matsukawa , Masashi Uchida
CPC classification number: H03M3/502 , H03M1/0656 , H03M1/0863 , H03M1/742 , H03M1/745 , H03M3/464
Abstract: This D/A converter includes a plurality of D/A converter elements, each comprising current sources configured to supply output currents to output nodes, and first switches configured to control the output currents. The output nodes are connected to a capacitor section having second switches and a capacitive load. The D/A converter further includes a switch control circuit configured to control the first switches responsive to digital signals, and also control the second switches in accordance with the control of the ON/OFF state of the first switches.
Abstract translation: 该D / A转换器包括多个D / A转换器元件，每个D / A转换器元件包括被配置为向输出节点提供输出电流的电流源和被配置为控制输出电流的第一开关。 输出节点连接到具有第二开关和容性负载的电容器部分。 D / A转换器还包括开关控制电路，其被配置为响应于数字信号来控制第一开关，并且还根据第一开关的接通/断开状态的控制来控制第二开关。
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公开(公告)号：US09634688B2
公开(公告)日：2017-04-25
申请号：US15194420
申请日：2016-06-27
Applicant: SOCIONEXT INC.
Inventor： Yosuke Mitani , Takashi Morie , Kazuo Matsukawa
Abstract: An integrator including: a resistive element connected to an input terminal; an operational amplifier configured to receive, through the resistive element, an input signal that has been supplied to the input terminal; and a voltage regulator circuit connected to an intermediate node between the resistive element and the operational amplifier. The voltage regulator circuit has a first current source connected to the intermediate node, and a switch connected between the intermediate node and the first current source and selectively turning ON or OFF.
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