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參數(shù)資料
| 型號： | SDV1005-600 |
| 英文描述： | 600W RMS,Class D Audio Amplifier Module(600W RMS,D級音頻放大器模塊) |
| 中文描述： | 600W額定功率，D類音頻放大器模塊（600W額定功率，?級音頻放大器模塊） |
| 文件頁數(shù)： | 9/10頁 |
| 文件大?。?/td> | 121K |
| 代理商： | SDV1005-600 |
Semelab Plc. reserve the right to change the products shown on this datasheet in the interest of improved specification. No responsibility is assumed for
the use of information contained herein, nor for any infringement of patent or rights of others that may result from such use. No license is granted by
implication or otherwise under any patent or patent right of Semelab Plc.
Current monitor
The standard amplifier module does not include short circuit protection. Semelab
has patented a current monitor that enables precise measurement of the amplifier
output current and responds within 4
μ
s to a short circuit condition. The current
monitor is a coarse measure due to the nature of loudspeaker loads. The load will
fluctuate due to its reactive nature and any current monitor has to allow peak current
five times greater than the rms currents.
However, if the amplifier module is to be used in situations where the output could be shorted (i.e.
during assembly of sound systems), then this option should be considered. The current monitor circuitry can
be mounted inside an enlarged module package.
Input characteristics
The input characteristics of the standard module can be tuned to the requirements of different
applications. Input parameters that can be readily reconfigured include:
Gain:
Currently configured for input voltage levels up to ±1Vp-p. Other options
include 0.5Vrms, 1Vrms, 2Vrms, ±0.5Vp-p, ±2Vp-p, ±3Vp-p.
Currently set at 7.3K
, consult Magnatec for options suitable to the
application.
Currently set at 100KHz (-3dB point). Other options include multiple pole
lowpass filters with roll-offs up to 100KHz.
For applications where the audio source is not well defined or controlled, the
anti-clip circuitry can either disable the amplifier when the signal level
reaches a pre-determined threshold or dynamically reduce the input gain
when the signal approaches clip. The additional circuitry is housed in an
enlarged package.
Input impedance:
Filter on input:
Anti-clip on input:
Output filter
The characteristics of the output filter can be adjusted for a particular application.
Parameters that can be varied include passband attenuation, stopband attenuation,
passband ripple, and switching frequency attenuation. Some of the aforementioned
parameters are coupled and cannot be considered independently. For applications
where a filter is required please discuss the requirements with Magnatec.
Switch-mode, universal input, PFC, PSU module
This product is still under development, release is expected in the coming months. The power supply will
be universal input 90 to 264Vac, 50/60Hz, power factor corrected pre-regulator, providing both rail and
control voltages for the amplifier modules.
Multiple modules in one package
The design of the packaging used for the amplifier module can be changed to include multiple amplifiers
in one package. The amplifier modules could be the same or different power levels e.g. three amplifier
modules at different power levels for active speaker cabinets, or two amplifiers module in one package at the
same power levels for stereo amplifiers.
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