Part Number: ADA414
Title: STEREO AUDIO DISTRIBUTION AMPLIFIER
Category: A/V Baseband
Industry: CCTV/Security, TV/Radio Broadcast, CATV Cable Industry
ADA414 STEREO AUDIO DISTRIBUTION AMPLIFIER The ADA414 Stereo Audio Distribution Amplifier is a Dual channel Left and Right audio input, 4 audio output per channel distribution amplifier. The inputs and outputs are balanced to provide common mode suppression of hum and 60 cycle ground loops. The unit will accept balanced or un-balanced audio signals. Each input has 3 field select input ranges and an adjustable front panel control for level setting. The output channels have 3 field select ranges to choose from, -10dBm, 0dBm, and +4dBm APL (Average Program Level). A 10 Segment Dual LED VU meter on the front panel allows the operator to precisely set each input level for the correct APL output. The master level controls on the front panel can be used for periodic adjustment of the system level. The output impedance is also very low, so that output levels are not sensitive to load impedance variations. This also prevents frequency response variation on long cable runs. The unit is completely compatible with 600 Ohm impedance systems. This audio distribution amplifier can be used to combine a left and right stereo audio channel to form mono while maintaining the stereo separation at the audio input. The unit can be converted into a single channel mono input, 8 channel output Distribution Amplifier by selecting a jumper on the pc board. This versatility of configuration allows the operator to use the same unit in many different applications. An optional 15,734 Hz or 19,000 Hz notch filter may be ordered to prevent high level video or multiplex artifacts from entering the distribution output. ADA414 STEREO AUDIO DISTRIBUTION AMPLIFIER FEATURE SPECIFICATION INPUT Channels 2 Left/Right or Dual Audio Connection Balanced or Un-balanced Impedance Hi-Z Bridging Common Mode Rejection 50 dB minimum, 60 dB average Audio Level (APL) -10 dBm, 0 dBm, +4 dBm (selectable) Audio Level (PPL) 0 dBm, +10 dBm, +14 dBm Headroom Maximum Level +20 dBm (Clip Point) Meter Type 10 Segment Color LED Peak VU Meter Response DIN 45406 PPM Specification OUTPUT Channels 8 (mono) or 4 (stereo) Connection Balanced or Un-balanced Impedance Low Z, to drive 600 ohms Audio Level (APL) -10 dBm, 0 dBm, +4 dBm (selectable) Audio Level (PPL) 0 dBm, +10 dBm, +14 dBm PROCESSING Frequency Response 20 Hz – 20 KHz +/- 0.2 dB Distortion 0.05% THD Maximum Signal to Noise Ratio 80 dB Minimum POWER REQUIREMENT Power +/- 12 VDC 150 mA (RMS400) MECHANICAL PC Card Size 10.00″ L x 4.80″ W x 1.20″ D Mounting Slide-in PC Card (RMS400) ADA414.SPC
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