发明名称 |
VOLTAGE CONTROLLED OSCILLATOR |
摘要 |
The invention relates to a voltage controlled oscillator (VCO), for use in a phase locked loop for clock multiplication, for example in recovery of data pulses from a data stream input comprising digital data with unknown phase. According to the invention, the VCO comprises a plurality of VCO stages, each stage being implemented as a differential amplifier. The amplifier load is formed of two cross-coupled gate devices (M5 and M6) and of two gate devices (M8 and M9) which are connected as diodes. The differential input is applied to a source coupled input pair (M2 and M3) as well as to two pull-down gate devices (M4 and M7). |
申请公布号 |
WO9904529(A2) |
申请公布日期 |
1999.01.28 |
申请号 |
WO1998SE01280 |
申请日期 |
1998.06.30 |
申请人 |
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) |
发明人 |
BJOERKLID, ANDERS;HARDIE, MALCOLM;MAEDER, HEINZ |
分类号 |
H03K3/354;H03F3/45;H03K3/02;H03L7/099;H04L7/033 |
主分类号 |
H03K3/354 |
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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