RDL STA-1M Line-Amplifier

Features:

1-Kanal Linepegel-Verstärker
Sym. oder unsymmetrischer Ein- und Ausgang
Impedanzwandler von hoch- in niederohmig
Treibt hoch- oder niederohmige Lasten


The STA-1M allows bridging any audio line, adjusting the gain, and driving a balanced or unbalanced line. The circuit design allows the input to accept either balanced or unbalanced signals, of either high or low impedance. This is an instrumentation type input stage which will amplify the differential input, regardless of ground reference. The output is capable of driving either high or low impedance loads, and the output may be connected either balanced or unbalanced.

RDL's SupplyFlex power input configuration is included in the STA-1M. The power supply input may be fed from a floating (not ground-referenced) 24 Vdc power source, from a bipolar power supply (+/ 12 Vdc or +/-15 Vdc) or from a ground-referenced 24 Vdc power supply.


Input: 10 kΩ balanced or unbalanced bridge
Outputs (2): 150 Ω balanced to drive low or high-Z; 75 Ω unbalanced
Output Level: +4 dBu nominal, (adjustable; unbalanced output 6 dB below balanced line level)
THD+N: < 0.05%
Frequency Response: 10 Hz to 20 kHz (±0.25 dB)
Headroom above +4 dBu: > 18 dB
CMRR: > 50 dB at full gain (50 to 120 Hz)
Noise Below + 4dBu: < -75 dB
Gain: Adjustable per chart below
Input/Output Min Gain/Max Gain
Unbal. / Balanced -7 dB / +14 dB
Bal. / Balanced -7 dB / +14 dB
Bal. / Unbalanced -14 dB / +7 dB
Unbal. / Unbalanced -14 dB / +7 dB
Ambient Operating Environment: 0° C to 55° C
Power Requirement: GROUND-REFERENCED or FLOATING, 24 Vdc @ 50 mA
Package Type: Cardboard Box
Package Dimensions: 2 x 2 x 4 in.
Shipping Weight: 0.19 lbs.
WEEE weight: 0.136 lbs.