An Analog LSI Dolby Pro-Logic Decoder I.C.

Henry PS. An Analog LSI Dolby Pro-Logic Decoder I.C. In: AES Convention 89. Audio Engineering Society; 1990. Paper 2944. Available from: https://aes.org/publications/elibrary-page/?id=5749

@inproceedings{Henry1990_5749,
  author = {Henry, Peter S.},
  title = {{An Analog LSI Dolby Pro-Logic Decoder I.C.}},
  booktitle = {AES Convention 89},
  note = {Paper 2944},
  year = {1990},
  month = sep,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=5749}
}

TY  - CPAPER
TI  - An Analog LSI Dolby Pro-Logic Decoder I.C.
AU  - Henry, Peter S.
T2  - AES Convention 89
M1  - Paper 2944
PY  - 1990
DA  - 1990/09/06
UR  - https://aes.org/publications/elibrary-page/?id=5749
PB  - Audio Engineering Society
LA  - en
AB  - An integrated-circuit version of the Dolby Pro-Logic surround-sound system is presented. The IC described is the most complete analog implementation to date of Pro-Logic on a chip, and contains all of the core functions for Pro-Logic including autobalance, noise generation, the active decoding matrix and center channel mode control. The chip is capable of three or four channel decoding mode, and provides a bypass for normal stereo. All modes are controlled by a parallel digital interface which is TTL or CMOS compatible. The chip contains thirty op amps, ten low-noise VCA's, a new circuit element called an operational conveyor amplifier, two dual-output rectifiers, two log-difference amplifiers, comparators, random logic and a digital noise source. It is implemented on an advanced BiCMOS process with complementary MOS and bipolar transistors, oxide capacitors and laser-trimmable thin-film resistors. The IC contains approximately 2000 devices and utilizes 54,000mil squared of area.
ER  -