Audio Production Equipment : Amplifiers (Audio) : RDL, Radio Design Labs - ST-GCA3

Gain Control Amplifier - Line Level

Series:

Model: ST-GCA3

Automatic Gain Control
Wide Dynamic Range AGC
Slow Inaudible Gain-Reduction
Tight Dynamic Control
Positive, Fast Gain Reduction

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The ST-GCA3 constantly adjusts for changes in input levels, bringing up low levels, and reducing gain for high levels. The audio level is constantly adjusted to maintain the correct output. The AGC adjustment rate is switch-selectable. Making audio levels uniform and consistent improves the performance of nearly any type of audio system, and the ST-GCA3 SLOW mode is ideal for leveling music sources. The FAST setting of the ST-GCA3 makes it ideal for use in systems prone to loud bursts of audio, and inconsistent levels which must be constantly and quickly corrected. In paging systems, intercom systems, and mic mixing applications where intelligibility is a must the ST-GCA3 FAST mode can be the key to optimum performance.

Automatic Gain Control
Wide Dynamic Range AGC
Slow Inaudible Gain-Reduction
Tight Dynamic Control
Positive, Fast Gain Reduction
Low-Noise and Low-Distortion AGC
RDL® SupplyFlex™ Power Input Configuration

Amplifier Signal Type - Audio
Amplifier Type - Other

Noise:
Operating Temperature (Maximum): 55 C
Operating Temperature (Minimum): 0 C
Maximum Frequency Response (Bandwidth): 20 kHz
Maximum Frequency Response (Bandwidth): 20000 Hz
Minimum Frequency Response (Bandwidth): 10 Hz
Minimum Frequency Response (Bandwidth): 0.01 kHz
Number of Inputs: 1
Number of Outputs: 2
Total Harmonic Distortion + Noise (THD+N): 0.30 %
Inputs: +4 dBu balanced (nominal)
Maximum Input Level: +26 dBu
AGC Range: > 40 dB (output level maintained within 3 dB)
No input signal, output un-muted: < -70 dB
No input signal, output muted: < -80 dB
Input signal present, output muted: < -50 dB
Mute Threshold: -46 dB below max input; -28 dB below normal input
Muting Response: 15 Sec for 50 dB
SLOW AGC response: 8 Sec for 20 dB average level adjustment
FAST AGC response: 3 Sec for 20 dB average level adjustment
On Delay: 50 ms to ramp from muted to fully on condition
Indicators (2): LED, green variable intensity shows audio expansion LED, yellow variable intensity shows audio gain reduction
Note: Both LEDs display equal intensity for normal input level equal available expansion and gain reduction)
Power Requirement: 24 to 33 Vdc

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Datasheet for Gain Control Amplifier - Line Level 595938 kb - Other

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