The MC145076 is a combination reclocking and smoothing filter designed especially for the MC145074 Stereo Audio DAC. Its versatility however, allows it to be used with any single bitstream data converter to provide output reconstruction filtering, and to improve performance by restoring pulse shape integrity. The MC145076 provides a well controlled, filtered output that can be used directly, or with a current summing operational amplifier. The MC145076 is intended to be one half of a twochip solution for serial bit steam DACs. The analog filtering function of the MC145076 eases the digital filtering requirements at the input to the digital noise shaping modulator, and eliminates the need for precision analog output filtering capacitors, resulting in lower overall system cost. The MC145076 pulse shape restoration frees the designer from analog pitfalls that can impact performance, thereby lowering the risk of new product development with a sigmadelta DAC.