Semiconductor integrated circuit device

Details Semiconductor integrated circuit device Semiconductor integrated circuit device

2006-02-14

2006-02-14

Lam, Tuan T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Frequency or repetition rate conversion or control

C327S114000

Reexamination Certificate

active

06998881

ABSTRACT:
In a circuit for converting an input signal Data1of high frequency to an output signal Data4of low frequency, a signal of the frequency band (for example, 10 GHz to 2.5 GHz) which can be processed only with a bipolar ECL circuit is processed with a bipolar ECL circuit. After the frequency of signal up to the maximum frequency which can be processed with a CMOS circuit is lowered, the signal is inputted to the CMOS circuit via a level conversion circuit in order to lower the frequency (for example, 2.5 GHz to 1.25 GHz). Thereby, power consumption of the semiconductor integrated circuit device, particularly the device including the Bi-CMOS circuit can be lowered while high-seed processing characteristic in the signal process of the circuit is maintained.

REFERENCES:
patent: 5412262 (1995-05-01), Nishio et al.
patent: 5850155 (1998-12-01), Matsumoto
patent: 6104219 (2000-08-01), Barkatullah et al.
patent: 6385273 (2002-05-01), Hsu et al.
patent: 6-237160 (1994-08-01), None

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