One bit digital to analog converter with feedback across the dis

Details One bit digital to analog converter with feedback across the dis One bit digital to analog converter with feedback across the dis

1998-06-02

2000-09-19

Young, Brian

Coded data generation or conversion

Analog to or from digital conversion

Differential encoder and/or decoder

H03M 166

Patent

active

061219096

ABSTRACT:
A 1-bit digital to analog converter uses both discrete time and continuous time processing to produce an analog output signal. The analog output signal is sampled and fed back across the discrete time/continuous time interface to the input of the conversion circuit. In one implementation, the discrete time processing uses an integrator chain of switched capacitor integrators and a switched capacitor low pass filter. The continuous time processor is a 2 pole low pass filter. A finite impulse response filter can precede the discrete time processing. A plurality of analog output sampling arrangements can be selectively applied accommodate a variety of operational conditions.

REFERENCES:
patent: 5376936 (1994-12-01), Kerth et al.
patent: 5412348 (1995-05-01), Kasha et al.
patent: 5541599 (1996-07-01), Kasha et al.
patent: 5644257 (1997-07-01), Kerth et al.

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