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DCX-127 多功能模块
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DCX-127 多功能模块
提供音频测试系统里面可能需要用到的非音频功能以及连接能力
DCX-127 多功能模块提供音频测试系统设置里面可能用到的非音频功能以及连接功能.
• DC电压和阻抗测试, 自动量程控制, 200 mV - 500 V, 200 Ω - 2 MΩ, 完全浮地的保护设计, 提供精密的测试结果
• 使用四线或二线配置的阻抗测试
• 两组独立可编程控制直流电源输出: ±10.5 V范围
• 20 mV resolution and monotonicity to 40 mV (19 bits)
• 可针对直流电源进行扫描测试
• Digital input of static or low-speed parallel input, word width up to 21 bits
• Digital output of a parallel digital word of 21 bits
• Simplified 8-bit program control interface can be defined to execute any pre-defined keystroke sequence, to run different software procedures based upon switch closuresThe module contains a 4-1/2 digit DC voltmeter-ohmmeter, two 20-bit programmable DC voltage sources, 21 bits of digital I/O, and four 8-bit programmable auxiliary output ports for device control or status indicators. Typical applications include VCA gain control linearity, VCA distortion, amplifier DC offset and power supply checks, power amplifier load switching control, loudspeaker voice coil resistance measurements, temperature measurements, test fixture control, and testing DC parameters of A/D and D/A converters.
The DCX-127 also provides pulses and DC levels whose timing depend upon key software actions such as end of sweep, analyzer channel selection, or data settling. These may be used for synchronization and sequencing of external devices or portions of the test system such as the triggered sine burst generator.All DCX-127 output functions are under analyzer software control, and all of the inputs are displayed in the control software and can be displayed as bar graphs or plotted values during a sweep when appropriate.
注: DCX-127多功能模块与APx500系列分析仪一起使用, 需要 APIB adapter 适配器(USB, PCI, PCMCIA)
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