| 发明名称 |
HIGH-FREQUENCY AMPLIFIER CIRCUIT, SEMICONDUCTOR DEVICE, AND MAGNETIC RECORDING AND REPRODUCING DEVICE |
| 摘要 |
A high-frequency amplifier circuit includes a balanced-unbalanced converter converting a single-ended signal into differential signals. The output of a first amplifier amplifying the single-ended signal is connected to the signal terminal on the unbalanced side of the balanced-unbalanced converter. The input of a second amplifier amplifying one of the differential signals is connected to one signal terminal on the balanced side of the balanced-unbalanced converter. The input of a third amplifier amplifying another of the differential signals is connected to another signal terminal on the balanced side of the balanced-unbalanced converter. An impedance element is inserted between an element on the balanced side of the balanced-unbalanced converter and a ground. |
| 申请公布号 |
US2014312972(A1) |
申请公布日期 |
2014.10.23 |
| 申请号 |
US201414250118 |
申请日期 |
2014.04.10 |
| 申请人 |
TDK Corporation |
发明人 |
YONEDA Sadaharu;AJIOKA Atsushi;SHIBUYA Tomohiko;TSUMITA Atsushi |
| 分类号 |
H03F1/26;H03F3/193;H03F3/45 |
主分类号 |
H03F1/26 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A high-frequency amplifier circuit comprising:
a balanced-unbalanced converter converting a single-ended signal into differential signals, wherein an output of a first amplifier amplifying the single-ended signal is connected to a signal terminal on an unbalanced side of the balanced-unbalanced converter, an input of a second amplifier amplifying one of the differential signals is connected to one signal terminal on a balanced side of the balanced-unbalanced converter, an input of a third amplifier amplifying another of the differential signals is connected to another signal terminal on the balanced side of the balanced-unbalanced converter, and an impedance element is inserted between an element on the balanced side of the balanced-unbalanced converter and a ground. |
| 地址 |
Tokyo JP |
