8347 and 9055 DAC OUTPUT TRANSFORMERS

APPLICATION Designed for use with Burr-Brown PCM67, PCM1702, PCM63 or similar Digital-to-Analogue Converter. Provides current to voltage conversion with approximately 25 dB gain. Presents a low impedance to the DAC output for best frequency response. Provides significant sound quality improvement when compared to other interface methods. Ensures full isolation of digital noise in ground and supply rails.  If two DACs are use in complimentary mode (driven by true and inverted data) transformer type 9055 has twin identical bifilar wound primary windings. This gives the ultimate in cancellation of quantisation noise. The I/V resistor may be used across the secondary of the transformer instead of the primary.  The value of the resistor should be increased by the ratio squared.  Doing this may give a different sound by changing the filtering effect.