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In the Forum: Didital Things
In the Thread: The Museatex Bidat pages.
Post Subject: The Bidat processors and whatever…Posted by Romy the Cat on: 4/11/2008
Yep, Telstar. The 1547 was use in Sony and Teac CD players and believe the first CD-SACD machines used that chip. I know very little about those chips and have none of my personal experience to deal with all of it. The reasons why I brought it up because Bidat used this processor but the IDAT does not and according to the people who apparently read the IDAT manual it said that it used the “less expensive processor”. I have no idea what it all means…
Anyhow, here are the specification for IDAT44
Digital Filtering: 8X over sampling, DSP based intelligent design.
Frequency Response: 20 Hz to 20 KHz, +0,-0.5 dB.
Resolution: 18 bits.
Jitter: Less than 10pS. No periodic jitter.
Inter-channel difference (dB level/Ratio): 0.10 dB or better.
Noise, optical and electrical inputs (30 KHz BW) : Less than 90dB.
Inputs: TOSlink optical, 75 Ohm coaxial.
Outputs: Stereo (RCA) 300 Ohms.
Output Level: 2.5V RMS.
C-Lock™ anti-jitter input receiver.
Internal switching power supply allows operation from external 12V battery.
Continuous Calibration D/A conversion.
IDAT™ interpolation algorithm.
Fully balanced in the digital domain: 2 DACs/channel.
And here are the specification for Bidat (BTW, my unit has 5.9VRMS at output)
Digital filtering: 8X over sampling, DSP based "Intelligent" design.
Frequency Response: 20 Hz to 20 Khz +0, -0.5 dB.
Total Harmonic Distortion + Noise: -90dB
Jitter: Less than 10 PS. No periodic jitter. Crystal based PLL clock recovery system.
Inter channel difference (dB level/Ratio): 0.10 dB or better.
Noise, optical and electrical inputs (30 KHz BW): Less than 90 dB.
Inputs: ST glass optical, TOSlink optical (EIA), 75 Ohm coaxial, AES/EBU broadcast standard (XLR).
Outputs: Balanced stereo pair (XLR) 600 Ohms. Unbalanced pair (RCA) 300 Ohms.
Output Level: 3.5Volts RMS (Maximum)
C-Lock™ anti-jitter input receiver with digitally activated oscillator control.
Dual transformers.
Four layer printed circuit board.
16 to 20 bit digital audio word input.
IDAT™ interpolation algorithm.
Combination 7350/1547 single bit output. Rerurn to Romy the Cat's Site