发明名称 |
Pulse width modulation D/A-converter |
摘要 |
<p>A digital to analog converter (40) includes a pulse width modulator (14) and a class-D amplifier (16). The class-D amplifier (16) includes a low pass filter (34). A differential signal is available from two nodes (outp, outm) on the amplifier. Common mode compensation circuitry (42) generates a compensation signal during periods where a PWM signal is not being generated to maintain a common mode average value of (Avdd +Avss)/2 from the nodes, without affecting the differential signal. <IMAGE></p> |
申请公布号 |
EP1139571(A1) |
申请公布日期 |
2001.10.04 |
申请号 |
EP20000400907 |
申请日期 |
2000.03.31 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED;TEXAS INSTRUMENTS FRANCE |
发明人 |
GUIGON, PASCAL;ALBINET, XAVIER |
分类号 |
H03M3/02;H03M1/82;(IPC1-7):H03M1/82 |
主分类号 |
H03M3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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