A frequency divider includes a first latch and a second latch. The first latch is configured to receive a clock signal. The first latch is cross-coupled to the second latch. The second latch includes a circuit configured as a low-pass filter. The second latch further includes a differential pair of transistors. Each of the transistors include a drain, a source and a gate. The gates of the least two transistors configured to receive a signal generated by the first latch. Additionally, the gates of the at least two other transistors are coupled to a control signal for determining a low-pass characteristic of the second latch.
Original language | Undefined |
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Patent number | US7671641 B1 |
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Priority date | 4/03/05 |
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Publication status | Published - 2 Mar 2010 |
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- IR-102633
- METIS-237874
- EWI-8932