The Tektronix DA4084 Programmable Distortion Analyzer System is a precision audio measurement instrument designed for automated testing of distortion, noise, and signal integrity in audio equipment. This plug-in analyzer for the TM5000 mainframe series delivers fully automatic operation—including automatic level setting, tuning, fundamental nulling, and display autoranging—to minimize test time and operator error. The DA4084 replaces manual procedures with hands-off measurement once mode selection and test signal application are complete, making it ideal for manufacturing QC, R&D, and radio equipment characterization.
Technical Specifications
• Frequency Range: 10 Hz to 100 kHz fundamental; harmonic measurements to 300 kHz
• Measurement Functions: Level (volts or dBm), THD+N, SINAD, dB ratio
• THD+N Performance: <0.0025% with companion SG505/SG5010 signal source
• Input Ranges: 200 µV to 200 V in 10 steps
• Distortion Ranges: 100%, 20%, 2%, 0.2% (automatic); dB (autoranging)
• Accuracy: ±1 dB (20 Hz to 20 kHz); +1, −2 dB (10 Hz to 100 kHz)
• Residual Noise: ≤3.0 µV
• Display: 3½-digit, 2000-count LED with analog-like bar graph
• Filters: Four built-in frequency-weighting filters; external filter option available
• SINAD Lock: Maintains lock to audio fundamental at noise levels up to 50%; 'UNLK' indicator signals loss of lock
– Key Features
• Fully automated operation reduces testing time and human error
• Four built-in frequency-weighting filters for application flexibility
• SINAD function optimized for radio equipment maintenance and characterization
• IEEE-488 (GPIB) programmability for ATE system integration
• Operates in modified TM5003 power frame or compatible TM5000 mainframes
• Equivalent to AA5001 analyzer with SINAD instead of IM measurement
– Typical Applications
• Audio equipment manufacturing and quality control
• Radio equipment maintenance and characterization
• Research and development testing
• Production test environments requiring hands-off measurement
– Compatibility & Integration
The DA4084 integrates into Tektronix TM5000 series mainframes and power frames via plug-in architecture. IEEE-488 interface enables direct integration into automated test equipment systems. Military designation for the DA4084 with specialized power supply is TS-4084/G.
