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В Bazar.BG от 20 октомври 2015г.
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Specification:
Working voltage: DC 5v-34v
Maximum output power: 130w
Chip: CS8683 high-power digital power amplifier chip
Standby control description:
SD
is the standby control terminal, low-level mute, high-level work (the
control voltage can be from 3v-35v), the default is the working state
when delivered, when the standby control is required, the R1 resistor on
the board needs to be removed, and the external control will do .
Gain
setting terminal description: The default floating state gain is 40
times. If a higher gain is required, just short-circuit the two pin
interfaces of the gain setting terminal, and the gain after
short-circuiting is 54 times.
The signal input mode can be selected from the following two according to your needs:
1: Signal Balance Input (Differential): Signal+, Signal-,
2:
Unbalanced input (single-ended): the - terminal is short-circuited with
GND (ground), and the signal is input from the + terminal.
Note:
When the input is unbalanced, be sure to short-circuit the "-" with
GND, otherwise the sound will be abnormal, and the chip may be burnt out
in serious cases.