TDT RZ2 Manual page 142

3-10
Sigma-Delta converters support a more limited set of sampling rates as shown in the
table below. When using Sigma-Delta converters, the user must ensure a valid
sampling rate is set for the device.
Note: The Check Realizable button in the device set-up dialog in RPvdsEx is used to
calculate the true sampling rate of the system when an arbitrary sampling rate is
used. This rate is based on the PCM converters. If your RX8 contains any sigma-
delta converters you must use the following values for arbitrary sampling rates.
Supported Arbitrary Sample Rates for Sigma‐Delta Converters
Standard Rate
6 kHz
12 kHz
RX8 Technical Specifications
DSP
Memory
D/A
Frequency Response
A/D
RX8 Multi I/O Processor
Actual/Arbitrary
Rate (Hz)
6103.52
6975.45
8138.025
9765.63
12207.03
13950.89
16276.04
19531.25
100 MHz Sharc ADSP 21161, 600 MFLOPS Peak Two or Five
128 MB SDRAM
up to 24 channels, 16-bit PCM or 24-bit sigma-delta
Up to 97.65625 kHz*†
Sample Rate
Sigma-delta or PCM: DC - Nyquist (~1/2 sample rate)
+/- 10.0 Volts
Voltage Out
Sigma-delta: 97 dB (20 Hz - 20 kHz at 10 V)
S/N (typical)
PCM: 80 dB (20 Hz - 20 kHz at 10 V)
Sigma-delta: -84 dB (1 kHz output at 5 Vrms)
THD (typical)
PCM: -70 dB (1 kHz output at 5 Vrms)
Sigma-delta: 23 samples or PCM: 4 samples
Sample Delay
up to 16 channels, 16-bit PCM or 24-bit sigma-delta
Up to 97.65625 kHz*†
Sample Rate
Actual/Arbitrary
Standard Rate
Rate (Hz)
25 kHz 24414.06
27901.79
32552.08
39062.50
50 kHz 48828.13
55803.57
65104.17
78125.00
100 kHz 97656.25
System 3