New Balanced Input Integrated Circuit Achieves Very High Dynamic Range in Real-World Systems

Floru F, Whitlock B. New Balanced Input Integrated Circuit Achieves Very High Dynamic Range in Real-World Systems. In: AES Convention 117. Audio Engineering Society; 2004. Paper 6261. Available from: https://aes.org/publications/elibrary-page/?id=12918

@inproceedings{Floru2004_12918,
  author = {Floru, Fred and Whitlock, Bill},
  title = {{New Balanced Input Integrated Circuit Achieves Very High Dynamic Range in Real-World Systems}},
  booktitle = {AES Convention 117},
  note = {Paper 6261},
  year = {2004},
  month = oct,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=12918}
}

TY  - CPAPER
TI  - New Balanced Input Integrated Circuit Achieves Very High Dynamic Range in Real-World Systems
AU  - Floru, Fred
AU  - Whitlock, Bill
T2  - AES Convention 117
M1  - Paper 6261
PY  - 2004
DA  - 2004/10/06
UR  - https://aes.org/publications/elibrary-page/?id=12918
PB  - Audio Engineering Society
LA  - en
AB  - Limited Common-Mode Rejection Ratio (CMRR) in balanced interfaces often limits dynamic range in real-world audio systems. Conventional differential amplifier input circuits suffer serious CMRR degradation when driven by real system signal sources instead of laboratory generators. An ideal audio transformer, because of its extremely high common-mode impedances, is virtually immune to this degradation. A new Integrated Circuit (IC) is described that uses a patented topology to achieve common-mode impedances comparable to those of an ideal transformer. As a result, the IC enables signals with very high dynamic range to be transported without contamination by system groundvoltage differences or other sources of common-mode interference. Other features of the IC, relating to audio signal quality and reliability, are also detailed.
ER  -