Teac LX Series, Instruction Manual, Page: 123 / 148

DC Input Amp Specifications
6-9
DC Input Amp Specifications
<AR-LXDC>
Quantization Bits
16 bits (simultaneous sampling, use MSB16 bits of 24 bits ADC)
Conversion Method 128 times over-sampling delta-sigma method, 64 times at 96 kHz sampling
Num. of Input Channels 8 channels
Input Range
+/-0.5, 1, 2, 5, 10, 20, 50 Vp (Exceeded range +/-120%)
Absolute Max. Input Voltage +/-100 V
Input Impedance 100 k ohm unbalanced
Filter Joint use of digital and analog filters
Linearity +/-0.1% or less
Distortion +/-0.05% or less (at bandwidth of 20 kHz)
Drift +/-0.1% or less
Dynamic Range 80 dB (within bandwidth)
S/N Ratio 78 dB (within bandwidth)
Cross-talk 78 dB (within bandwidth, 48 kHz or lower sampling)
75 dB (within bandwidth, 96 kHz sampling)
Inter-channel Phase Difference 1 degree or less (in same range with bandwidth 20 kHz or less)
3 degrees or less (in same range with bandwidth 40 kHz)
<AR-LXDC2>
Addition to the specifications of the AR-LXDC, Low-speed sampling mode (1 kHz to 1/60 Hz) is available.
Conversion Method
128 times over-sampling delta-sigma method, 2 kHz sampling
Sampling Frequency 1 kHz, 500 Hz, 200 Hz, 100 Hz, 50 Hz, 20 Hz, 10 Hz, 5 Hz, 2 Hz, 1 Hz, 1/2 Hz,
1/5 Hz, 1/10 Hz, 1/30 Hz, 1/60 Hz
(down sampling of 2 kHz sampling data by using DSP)
Recoding Times Example to use 1.3GB MO in 8 channels’ recording
100 Hz sampling,
Memo off: Approximately 200 hours Memo on: Approximately 33 hours
1 Hz sampling,
Memo off: Approximately 20000 hours Memo on: Approximately 40 hours
Digital Filter Characteristics Caused aliasing at 100 Hz or lower
Sampling Frequency (Fs) Cut-off Frequency (Fc) Attenuation
1 kHz 400 Hz - 80dB (at 500 Hz)
500 Hz 200 Hz - 80dB (at 250 Hz)
200 Hz 80 Hz - 80dB (at 100 Hz)
100 Hz 80 Hz - 80dB (at 100 Hz)
50 Hz, 20 Hz 10 Hz,
5 Hz, 2 Hz, 1 Hz
40 Hz - 80 dB (at 50 Hz)
1/2 Hz, 1/5 Hz, 1/10 Hz,
1/30 Hz, 1/60 Hz
20 Hz - 80dB (at 25 Hz)