Facebook
Google
GitHub
Linkedin
No sure what JVC might have been up to in the early '90s. Their K2 technology in cd players got some decent praise in HiFi News and Stereophile magazines.
Looking that that reference link of digital dutch insights ...
The complete d/a DAC converter list - DutchAudioClassics.nl
https://www.dutchaudioclassics.nl/the_complete_d_a_dac_converter_list/#J
... we can see some of what's goin' on ....
JVC XL-Z1050 (1992) decoder dsp --> JCE4300 [mystery chip] ->> YM3414 [digital filter] ->> JCE4501 [dac]
JVC XL-Z674 (1994) decoder dsp --> JCE4300 [mystery chip] ->> MN35502 [df+dac] -
The mystery chip, JCE4300, is placed right after the decoder chip.
The service manuals for various JVC cdp's only give very sketchy details about this 20-pin "Gate Array for K2 Interface". Obfuscation? Methinks it's a 74-style logic chip being used to re-clock the I2S lines. Typical practice. But, then again, it is a 20-pin device, maybe like: SN74AS804BN.
So ... Not sure what JVC is up to ... anyone care to guess?
Some refs:
https://audio-database.com/VICTOR/player/xl-z531.html
https://www.hifiengine.com/manual-library.shtml
https://www.dutchaudioclassics.nl/the_complete_d_a_dac_converter_list/#J
http://vasiltech.narod.ru/files.htm
https://audio-database.com/VICTOR/player/xl-z999.html
https://www.audioservicemanuals.com/j/jvc/
http://www.lampizator.eu/lampizator...JVC K2 XL-Z1050 CD Player with XRCD dac.html
https://support.jvc.com/consumer/product.jsp?modelId=MODL008025&pathId=7&page=1&archive=true
Looking that that reference link of digital dutch insights ...
The complete d/a DAC converter list - DutchAudioClassics.nl
https://www.dutchaudioclassics.nl/the_complete_d_a_dac_converter_list/#J
... we can see some of what's goin' on ....
JVC XL-Z1050 (1992) decoder dsp --> JCE4300 [mystery chip] ->> YM3414 [digital filter] ->> JCE4501 [dac]
JVC XL-Z674 (1994) decoder dsp --> JCE4300 [mystery chip] ->> MN35502 [df+dac] -
The mystery chip, JCE4300, is placed right after the decoder chip.
The service manuals for various JVC cdp's only give very sketchy details about this 20-pin "Gate Array for K2 Interface". Obfuscation? Methinks it's a 74-style logic chip being used to re-clock the I2S lines. Typical practice. But, then again, it is a 20-pin device, maybe like: SN74AS804BN.
So ... Not sure what JVC is up to ... anyone care to guess?
Some refs:
https://audio-database.com/VICTOR/player/xl-z531.html
https://www.hifiengine.com/manual-library.shtml
https://www.dutchaudioclassics.nl/the_complete_d_a_dac_converter_list/#J
http://vasiltech.narod.ru/files.htm
https://audio-database.com/VICTOR/player/xl-z999.html
https://www.audioservicemanuals.com/j/jvc/
http://www.lampizator.eu/lampizator...JVC K2 XL-Z1050 CD Player with XRCD dac.html
https://support.jvc.com/consumer/product.jsp?modelId=MODL008025&pathId=7&page=1&archive=true
