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18-2
18-4 Analog Channels
Number of channels
: 8 (SIR-1000W only)
Expandability
: 16
Bandwidth
:
Channel
Bandwidth
Mode
Full analog mode
MIX
2
—
(DC to 160 kHz)
×
speed ratio
4
(DC to 160 kHz)
×
speed ratio
(DC to 80 kHz)
×
speed ratio
8
(DC to 80 kHz)
×
speed ratio
(DC to 40 kHz)
×
speed ratio
16
(DC to 40 kHz)
×
speed ratio
—
Speed ratio is the ratio of 1/2, 1/4, 1/8, and 1/16 to the normal speed.
Sampling frequencies
: 2.4
×
Bandwidth (upper limit frequency of)
AD conversion
: 64-times over-sampling
∆
-
∑
modulation
DA conversion
: 2 to 128 times over-sampling successive conversion
Quantization
: 16-bit linear quantization
Filters (recording side)
: First-order analog FIR digital filter
Filters (playback side)
: Seventh-order analog FIR digital filter
Over-range
: ±33 %
Analog characteristics (Input ±133 % within Bandwidth)
AC characteristics
:
Bandwidth
2.5 k to 40 kHz
80k/160kHz
Frequency response
+1.0 /–1.5 dB, 0 dB @200 Hz
Dinamic range
76 dB or more
74 dB or more
Crosstalk
–76 dB or less
–74 dB or less
Distortion
0.016 % or less
0.02 % or less
(The same input/output condition. Except sync mode)
DC characteristics
:
Input
Input format
: Voltage input
Connectors
: 8
×
BNC (single ended)
Range
: ±0.5, ±1, ±2, ±5, ±10, ±20 Vpk
DC offset
: ±100 %
Impedance
: ±100 Vpk
Withstand voltage : ±100 Vpk
Output
Connectors
: 8
×
BNC (single ended)
Level
: ±1, ±2, ±5, variable (±0.5 to ±5) Vpk
Impedance
: 50
Applicable load
: 10 k or more
Bandwidth
Each Bandwith
Linearity
±0.1 % or less
Drift
REC : ±0.1 % or less /2 hours
PB : ±0.1 % or less /2 hours
(from 15 minutes after power ON)
Interchannel
phase
difference
3°
5°
Bandwidth
DC to 40 kHz or less
40 kHz to 160 kHz
REC
Inside a single unit : 1° or less
Between another unit : 2° or less
REC + PB
Inside a single unit : 2° or less
Between another unit : 3° or less