mark@mips.COM (Mark G. Johnson) (01/24/89)
For those who believe "if 16-bit digital audio is good, n-bit digital audio must be even better" (n>16), there is a new product that you may be interested in. It's a dual (2 of em in the same package) digital-to-analog converter rated at 200kHz update rate (CD == 44.1 kHz, DAT == 48 kHz) and 20-bit precision. Yep, that's right, 20 bits. That means 1 LSB = 1/1048576-th of fullscale. 0.954 parts per million. The device is the DAC 20200 from Ultra Analog Inc. Price mentioned in the article is $199 in quantities of 100. Reference: David Maliniak, "Dual 20-Bit Digital-to-Analog Converter Packs Reference, Interface Circuit", Electronic Design, January 12, 1989 (vol.37, no.1), page 171. -- -- Mark Johnson MIPS Computer Systems, 930 E. Arques, Sunnyvale, CA 94086 ...!decwrl!mips!mark (408) 991-0208