||DA-10st:480,000yen(around the 1994 time)
DA-10UA:580,000yen(around the 1994 time)
The D/A converter corresponding to [ incorporate the view of the counter point
no one but to a digital play, and ] various conversion systems.
In the 20-bit resolution DAC chip of an Analog Devices, and DA-10UA, as
for the D/A conversion part of DA-10st, 20 bits of duals of Ultraanalog
no operational amplifier is used for the core of a chip, for sound, there is no
necessity for harmful negative feedback, and more natural reproducibility has
The newest receiver chip of crystal Semiconductor which
has established reputation in a digital audio interface part with reliability
CS8412 is adopted. The Jitter ingredient which influences the accuracy of a
digital section by this is stopped to conventional one fourth.
series, the DAC trim which can adjust the linearity at the time of a minute
level the optimal is carried in the front panel. Thereby, the linearity at the
time of a minute level can be optimized.
In DA-10UA, although adjustment of
this trimmer is unnecessary, at the time of use, LED turns on DA10-AD20 which is
a DAC card of an option, and adjustment becomes possible.
stage, and the current / voltage conversion stage were used as the zero feedback
amplifier of completeness discrete composition, and degradation of the signal
which was not avoided in the voltage / current conversion by the conventional
100% feedback type operational amplifier is eliminated.
The thing of
counter point original was adopted as the power transformer, and it carried out
by digital one and analog each section independence, and has. Furthermore, the
interference to the analog section from a digital section is eliminated by
having used 17 places and a decoupling power source.
A passive 3rd LC
vessel type anti aliasing filter is adopted as a low pass filter, and common
overshooting and ringing, and group delay are reduced in the high order steep
filter at it.
Parts selected carefully, such as loader Stein metal tunic
resistance and a film capacitor by TRT, are used.
The digital input
carries a total of four lines of three coaxials and one optical. A coaxial is a
BNC type of gilding and optical serves as ST link system.
Furthermore, the interface of a coaxial and two TOSLINK is carried as tape
input and output which connect a DAT deck.
The design which can exchange a DAC card board
so that the difference in a digital conversion system can be enjoyed is used for
The DAC card was sold as an option option.
||20-bit 8 time oversampling
||32kHz, 44.1kHz, 48kHz
|Digital sauce input
||Coaxial (BNC type): Three lines
(ST link): One line
|Digital tape input and output
||input: -- coaxial (BNC type): -- one line
Optical (TOSLINK): One line
output: -- coaxial (BNC type): -- one line
Optical (TOSLINK): One line
||50 or less (crystal Semiconductor make
CS8412 use) pS
||Burr-Brown 8 time oversampling digital
||3rd order passive LC vessel filter
||20Hz-20kHz+0 -3dB (at the time of a 44.1kHz
||0.009% or less (20Hz - 20kHz)
|Output load impedance
|The maximum Dimensions
||DA-10st: Width 483x height 65x depth of
DA-10UA: Width 483x height 65x depth of 315mm
||Crystal Semiconductor DA10-CS18
An 18-bit delta / sigma DAC (58,000yen)
Analog Devices DA10-AD20
20 bit DAC (49,000yen)
Dual 20 bit DAC (138,000yen)