Teac WX-7000, Руководство пользователя

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81
18. Specifications
18-2. Input/output unit (AU-WXEPIO)
Analog signal input channels
Input amplifier switching Can be switched between DC input and PA input
Input signal type DC input PA input
Number of input channels 16
Input connectors BNC (Z=50 Ω type)
Input format Unbalanced
Input impedance 1 MΩ or more
Input signal and amplifier
coupling
DC coupling AC coupling
Input range options ±0.1, 0.2, 0.5, 1, 2, 5, 10, 20 V
Input filter — Analog filter
High pass filter —
3rd-order Butterworth analog filter
10 Hz (within ±0.5 dB),
20 Hz (within ±0.5 dB)
Weighting — A curve, C curve or flat IEC-TYPE1
Absolute maximum input volt-
age (input range value)
±50 V (0.1, 0.2, 0.5, 1, 2, 5 V), ±100 V (10, 20 V)
2-color input level LED
(red/green) Lights green when input level exceeds 10% of its
input range and lights red when it exceeds 115%.
Lights green when input level exceeds 10% of its
input range and lights red when it exceeds 115%.
Lights both green and red when there is no ICP
current.
Input signal quantization bit
depth
24-bit or 16-bit switchable
Over range ±127% (+2.08 dB)
Analog-digital conversion
method
ΔΣ method with 24-bit, 128x oversampling
Input frequency flatness
characteristics
(0 dB at 100 Hz)
(Sampling frequency/2.4)
10 V or less input range
Band (40 kHz or less): ±0.5 dB or less
Band (80 kHz or less): +0.5 to – 1.0 dB
20 V input range
Band (20 kHz or less): ±0.5 dB or less
Band (80 kHz or less): +0.5 to – 2.5 dB
Input range precision ±2% or less
Nonlinearity ±0.1% or less —
Input DC drift stability
±0.1% or less
(10 or more minutes after power supplied)
—
OFFSET, gain correction Correction function available
Measured frequency of phase
contrast between input
channels
(Sampling frequency/2.4)
10 V or less input range
Band (20 kHz or less): 1º or less (in same expansion unit)
2º or less (in different expansion unit)
Band (80 kHz or less): 3º or less
20 V input range
Band (20 kHz or less): 2º or less (in same expansion unit)
3º or less (in different expansion unit)
Band (80 kHz or less): 3º or less
Voltage supplied to ICP sensors —
Can be set to 28 V or 24 V DC for each expansion
unit (all 16 channels at once)
ICP sensor constant current
source
— Can be set to OFF, 0.5 mA or 4 mA per channel
ICP sensor interruption
detection
—
Each channel has ICP sensor interruption
detection
TEDS — Supports TEDS Ver. 1.0