Atec Audio-Precision-ATS-1A_ATS-1DD - Manual (Page 7)

ANALOG SIGNAL OUTPUTS
Low Distortion Sine Wave
Frequency Range
10 Hz to 120 kHz
Frequency Accuracy ±0.5 %
Amplitude Range (20 Hz to 30 kHz)
Balanced <0.25 mV to 26.25 Vrms [–70 dBu to
+30.6 dBu]
Unbalanced <0.25 mV to 13.12 Vrms [–70 dBu to
+24.6 dBu]
Amplitude Accuracy ±0.2 dB [±2.3 %] at 1 kHz
Amplitude Resolution 0.01 dB
Flatness (1 kHz ref)
10 Hz–20 kHz ±0.05 dB
Residual THD+N
25 Hz–20 kHz £(0.0025% + 3 µV), 80 kHz BW [–92 dB]
Square Wave
Frequency Range
20 Hz–30 kHz
Amplitude Range
Balanced 0.71 mVpp to 34.73 Vpp
Unbalanced 0.71 mVpp to 17.36 Vpp
Amplitude Accuracy ±0.3 dB [±3.5 %] at 400 Hz
Rise/fall time Typically 2.5–3.0 µs
SMPTE (or DIN) Test Signals with option “ATS-IMD”
LF Tone
50, 60, 70, or 250; all ±1.0 %
HF Tone Range 7 kHz or 8 kHz (±1 %)
Mix Ratio 4:1 (LF:HF)
Residual IMD 0.0015 % [–96.5 dB], 60 Hz + 7 kHz
or 250 Hz + 8 kHz
OUTPUT CHARACTERISTICS
Source Configuration
Selectable balanced or unbalanced
Source Impedances
Balanced 50 W (±2 W), 150 W (±2 W), or
600 W (±6 W)
Unbalanced 50 W (±2 W)
Output Current Limit 75 mA peak
Max Output Power
Balanced +29.9 dBm into 600 W (Rs = 50 W)
Unbalanced +23.8 dBm into 600 W (Rs = 50 W)
Output Related Crosstalk
(10 Hz–20 kHz) £–110 dB or 10 µV, whichever is
greater
ANALOG ANALYZER
ANALOG INPUT CHARACTERISTICS
Input Ranges
80 mV to 250 V in 10 dB steps
Maximum Rated Input 350 Vpk, 140 Vrms (dc to 20 kHz);
overload protected
Input Impedance
Balanced (each side) Nominally 100 k W // 150–200 pF
Unbalanced Nominally 100 k W // 150–200 pF
Terminations Selectable 600 W ±1 %
CMRR 80 mV–2.5 V range ³70 dB, 50 Hz–20 kHz
Input Related Crosstalk
10 Hz–20 kHz £–120 dB or 1 µV, whichever is
greater
Wideband Amplitude/Noise Function
Measurement Range
<1 µVrms to 140 Vrms [–118 dBu to
+45 dBu]
Accuracy (1 kHz) ±0.2 dB [±2.37 %] unweighted
Flatness (1 kHz ref) ±0.05 dB (20 Hz–20 kHz)
Bandwidth Limiting Filters
LF –3 dB <10 Hz; 400 Hz ±5 % (3-pole)
HF –3 dB 22 kHz; 30 kHz; 80 kHz (3-pole), or
300 kHz
Weighting Filters ANSI-IEC “A”; CCIR-QPK; CCIR-ARM;
CCIR-RMS
Optional Filters Up to 2 (Aux 1 and Aux 2)
Detection RMS ( i=60 ms); AVG; QPK (CCIR
Rec 468)
Residual Noise
22 Hz–22 kHz BW £1.5 µV [–114 dBu]
A-weighted £1.0 µV [–118 dBu]
CCIR-QPK £5.0 µV [–104 dBu]
Frequency Meter Related (both channels)
Measurement Range
10 Hz–200 kHz
Accuracy ±0.01 % [±100 PPM]
Resolution 5 digits
Phase Measurement Related
Measurement Ranges
±180, +90/–270, or –90/+270 deg
Accuracy 20 Hz–20 kHz ±2.0 deg
Resolution 0.1 deg
Level Meter Related (both channels)
Measurement Range
10 mV to 140 V for specified
accuracy and flatness, useable to
<100 µV [–38 dBu to + 45 dBu]
Accuracy (1 kHz) ±0.1 dB + 100 µV
Flatness (1 kHz ref) (Vin >10 mV) ±0.05 dB
(20 Hz–20 kHz)
Bandpass Amplitude Function
Tuning Range (f
O
) 20 Hz to 120 kHz
Bandpass Response Q=5 (2-pole)
Accuracy (at f
o
) ±0.3 dB, 20 Hz–120 kHz
THD+N / SINAD Function
Fundamental Range
10 Hz to 100 kHz, THD+N mode
Measurement Range .001 %–100 %
SINAD Range 400 Hz–1 kHz
Accuracy ±1 dB, 20 Hz–120 kHz harmonics
Measurement Bandwidth
LF –3 dB <10 or 400 Hz
HF –3 dB 22k, 30k, 80k, or 300 kHz
Residual THD+N
25 Hz–20 kHz £(0.0025% + 3.0 µV), 80 kHz BW
[–92 dB]
Crosstalk Function
Frequency Range
10 Hz to 120 kHz
Measurement Range –140 dB to 0 dB
Accuracy ±0.5 dB
SMPTE (DIN) IMD Function with option “ATS-IMD”
Test Signal Compatibility
40–250 Hz and 3 kHz–20 kHz in
0:1 to 8:1 ratio
IMD Measured Amplitude modulation products of
the HF tone.
Measurement Range <0.0025 %–20 %
Accuracy ±1 dB per SMPTE RP-120-1983,
DIN 45403
Residual IMD £0.0025% [–92 dB], 60 + 7 kHz or
250 + 8 kHz
Wow & Flutter Function
Test Signal Compatibility
2.80 kHz–3.35 kHz
Accuracy (4 Hz) ±(5 % of reading + 0.002 %)
Detection Modes IEC/DIN; NAB; JIS
Residual W+F £0.005% Weighted; £0.01%
Unweighted
DIGITAL SIGNAL GENERATOR
DIGITAL OUTPUT CHARACTERISTICS
Output Formats
AES/EBU (per AES3-1992); SPDIF-
EIAJ; Optical
Sample Rates 28.8 kHz–99.9999 kHz
Sample Rate Accuracy ±0.002% [±20 PPM] lockable to
external reference
Word Length 16 to 24 bits (even values)
Sine Wave
Frequency Range
10 Hz to 47 % of sample rate
(22.56 kHz at 48 ks/s)
Frequency Resolution Sample Rate ¸ 2 23
(typically 0.006 Hz at 48 ks/sec)
Flatness ±0.001 dB
Residual Distortion ±0.00001 % [–140 dB]
Square Wave
Frequency Range
10 Hz to 1/6 sample rate
Frequencies available f
s
¸ 4096 to f
s
¸ 6, in even integer
divisors
SMPTE/DIN IMD Waveform with option “ATS-IMD”
Upper Tone Range
Choice of 7 kHz or 8 kHz
Lower Tone Range Choice of 50 Hz, 60 Hz, 70 Hz, or 250 Hz
Amplitude Ratio 4:1 (LF:HF)
Residual Distortion £0.00001 % [–140 dB] at 4:1 ratio
Random Generator Waveform
Waveform
Compatible with Audio Precision
BITTEST
Dither (all waveforms)
Probability Distribution
Triangular or rectangular;
independent for each channel
Spectral Distribution Flat (white) or Shaped (+6 dB/oct,
triangular only)
Amplitude Automatically tracks word length or off
AES/EBU INTERFACE GENERATION
Interface Signal
Amplitude Range
Balanced (XLR) 0–5.11 Vpp, into 110 W in 5 mV steps
Unbalanced (BNC) 0–1.62 Vpp, into 75 W in 1.6 mV steps
Channel Status Bits English language decoded,
Professional/Consumer
Validity Flag Selectable, set or cleared
AES/EBU Impairments
Induced Jitter
Sine wave
Jitter Freq Range 10 Hz to 38.8 kHz
Jitter Amplitude 0–1.28 UI (pk), in steps of 0.005 UI
or better
1.3–12.75 UI, in steps of 0.05 UI or
better
Residual Jitter (total generator/analyzer) peak calibrated
RMS response £0.005 UI (700 Hz–30 kHz BW)
Peak response £0.015 UI (700 Hz–30 kHz BW)
Spurious Jitter Products
Jitter & Ref Delay Off £0.0005 UI
Jitter On £–30 dB below jitter signal
REFERENCE INPUT CHARACTERISTICS
Input Formats
AES/EBU (per AES3-1992)
Input Sample Rates 28.8 kHz–99.9999 kHz
Lock Range ±0.0025% [±25 PPM]
DIGITAL ANALYZER
DIGITAL INPUT CHARACTERISTICS
Input Formats
AES/EBU (per AES3-1992); SPDIF-
EIAJ; Optical
Sample Rates 28.8 kHz–99.9999 kHz
Word Length 16 to 24 bits
EMBEDDED AUDIO MEASUREMENTS
Wideband Level/Amplitude
Range
0 dBFS to –140 dBFS
Frequency Range <10 Hz–22.0 kHz at 48 ks/sec
Accuracy ±0.01 dB, ³–90 dBFS
Flatness ±0.01 dB, 15 Hz–22 kHz
High pass Filters 22 Hz, 400 Hz, 2-pole Butterworth
Low pass Filters 15 kHz, 20 kHz 6-pole elliptic low-
pass
Weighting Filters ANSI-IEC “A” weighting; CCIR QPK;
CCIR RMS
Residual Noise –140 dBFS unweighted; –142 dBFS
A-weighted
Narrow Band Amplitude
Frequency Range
0.04% to 40% of sample rate
(10 Hz–19.2 kHz at 48.0 ks/sec)
Filter Shape 10-pole, Q=19 (BW = 5.3% of f
0
)
THD+N Measurements
Fundamental Range
0.02% to 45% of sample rate
(10 Hz–22.0 kHz at 48.0 ks/sec
Residual THD+N £–138 dBFS
High pass Filters 22 Hz, 400 Hz 2-pole Butterworth
Low pass Filters 15 kHz, 20 kHz 6-pole elliptic low-
pass
Weighting Filters ANSI-IEC “A” weighting; CCIR QPK;
CCIR RMS
SMPTE (DIN) IMD Function with option “ATS-IMD”
Test Signal Compatibility
40–250 Hz and 3 kHz–20 kHz in 1:1
to 4:1 ratio
IMD Measured Amplitude modulation products of
the HF tone.
Measurement Range <0.0001%–10%
Accuracy ±1 dB per SMPTE RP-120-1983,
DIN 45403
Residual IMD (0 dBFS) £0.0001% [–120 dB], 60 + 7 kHz or
250 + 8 kHz
Frequency Measurements
Range
5 Hz to 47% of sample rate
Phase Measurement Related
Measurement Ranges
±180, +90/–270, or –90/+270 deg
Accuracy ±2.0 deg (20 Hz–20 kHz)
Resolution 0.1 deg
BITTEST Measurement
Measurement
Compatible with random mode of
Audio Precision BITTEST
DIGITAL INTERFACE MEASUREMENTS
AES/EBU Impairments, Real Time Displays
Input Sample Rate
±0.002% [±20 PPM] internal ref,
±0.0001% [*1 PPM] external ref
Output to Input or Reference
Input to Input Delay Measures status propagation from
the AES/EBU output to the input.
Range is 0–192 (frames), resolution
±60 ns.
AES/EBU Input Voltage
Balanced 400 mV to 10.24 Vpp,
±(10% + 50 mV)
Unbalanced 100 mV to 2.56 Vpp,
±(10% + 30 mV)
Jitter Amplitude (500 Hz) (peak-peak sine wave calibrated)
0–10 UI,
Jitter Flatness ±1.5 dB, 100 Hz–22 kHz (50 Hz HP
selection, RMS detection, 48 kHz
sample rate)
Residual Jitter, peak calibrated (analyzer only) (700 Hz–30 kHz
BW) £0.01 UI RMS; £0.03 UI Peak
Spurious Jitter Products £0.002 UI (1.2 kHz) or 0 dB below
jitter signal
Channel Status Bits English language decoded
(Professional/Consumer)
Validity Flag Displayed for selected channel
Parity; Signal Confidence;
Receiver Lock; Coding Error Displayed for total signal (both
channels combined)
AUXILIARY SIGNALS
Generator Analog Sync Output; Digital Sync Output; Analyzer Input
Monitor; Analyzer Reading
AUDIO MONITOR
Power Output Typically 1 watt
GENERAL / ENVIRONMENTAL
Power Requirements 100/120/230/240 Vac (–10%/+6%),
50–60 Hz, 50 VA max
Temperature Range 0° C to +50° C Operating; –20° C to
+60° C Storage
Humidity 90% RH to at least +40° C (non-
condensing)
EMC Complies with 89/336/EEC, CISPR 22
(class B), and FCC 15 subpart J (class B)
Dimensions 16.5 x 6.0 x 13.6 inches [41.9 x 15.2
x 34.5 cm]
Weight Approximately 20 lbs [9.1 kg]
Safety Complies with 73/23/EEC,
93/68/EEC, EN61010, and IEC 1010
(including Amendments 1 and 2)
Complete ATS-1 specifications are downloadable
from the Products area of the Audio Precision
Web site at audioprecision.com.