Tucker-Davis Technologies PZ3, Руководство пользователя

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7-74 System 3
PZ3 Low Impedance Amplifier
impedance checking mode. Please note that this does not necessarily reflect how the
hardware channels are used on the PZ3. The RZ2 interprets input from the PZ3
then makes the data available as described below. To further simplify circuit design,
the PZ3_ChanMap macro can be used to build separate multichannel data streams
for waveform data and impedance values.
PZ3 Technical Specifications
Unmapped
Channel Index
Recording Mode
Shared Differential Individual Differential (True Differential)
Channel 1 Analog Input Channel 1 Analog Input Channel 1(+)
Channel 2 RMS of Channel 1 Reference Channel 1(-)
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Channel 15 Analog Input Channel 8 Analog Input Channel 8(+)
Channel 16 RMS of Channel 8 Reference Channel 8(-)
Unmapped
Channel Index
Impedance Checking
Shared Differential Individual Differential (True Differential)
Channel 1 NA NA
Channel 2 Impedance of Channel 1 Impedance of Channel 1
(+) or (-)
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Channel 15 NA NA
Channel 16 Impedance of Channel 8 Impedance of Channel 8 (+) or (-)
A/D
Up to 128 channels 18-bit hybrid
Maximum Voltage In
+/- 3 mV - Default input range mode
+/- 20 mV - High input range mode
Frequency Response
3 dB: 0.1 Hz – 5 kHz
S/N (typical)
72 dB – 3mV input range
79 dB – 20mV input range
Distortion (typical)
< 1%
A/D Sample Rate
Up to 48828.125 Hz
Input Impedance
10
6
Ohms