powersoft MiniMod 4, User Manual

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Evaluation Board - KTP00477
14
Evaluation Board - KTP00477 | 19
B
A
F J
H C
E E
B
A
B B
I I
G G
D D D I I D
Description Status
A
CH1-CH2 Bridge Mode OFF
A CH3-CH4 Bridge Mode OFF
B CH1 Polarity Reverse ON
B CH2 Polarity Reverse ON
B CH3 Polarity Reverse ON
B CH4 Polarity Reverse ON
C Bypass 1/2/3/4 ON
D
CH1 Mute OFF
D
CH2 Mute OFF
D CH3 Mute OFF
D CH4 Mute OFF
E Voltage Limiter Disable CH 1-2 ON
E Voltage Limiter Disable CH 3-4 ON
F Energy Save ON
G ESMODE CH1-2 OFF
G
ESMODE CH2-3 OFF
H
Thermal Limiter Threshold Setup ON
I
CH1 Bypass OFF
I CH2 Bypass OFF
I CH3 Bypass OFF
I CH4 Bypass OFF
J Auxilliary Voltage Selector OFF
14 : 1.Switch functions
Switch Status ON Status OFF
A Bridge Mode
Ch1 routed to both Ch1, Ch2
Ch3 routed to both Ch3, Ch4
Each input connector is routed on its related
channel
B Polarty Reverse
Reverse polarity for each input XLR (see block
diagram for better comprehension of Polarity Reverse
insertion point)
Standard polarity
C Bypass 1/2/3/4
Output sourced directly from input XLRs. When
ON, all EVB limiting circuitry is bypassed (use in
conjunction with Bypass – 0 dip switch)
Input signal pass through internal limiters.
D Mute
Mute related channel (disable output stage PWM
generator)
Related channel unmuted
E Limiters Disable
thermal and voltage limiters disabled.
Signal pass through internal preamplifier stage
anyway.
Thermal and voltage limiters engaged.
F Energy Save
Energy save Active: after 10sec that input signal is not
detected, it goes into “shut down / auto mute” state
depending on the status of ESMODE switch; it wakes
up if signal is detected (wake up threshold -59dBV).
Energy save disabled.
G ESMODE
When Energy Save Mode is enabled this status shuts
down the Power Supply of the module (connected to
the related output connector)
When Energy Save Mode is enabled this
status mutes all channels of related connector
(disable output stage PWM generator power
supply is not shut down).
The EVB is an analog audio interface that includes
a thermal limiter, a clip limiter, and other functions (mute,
energy save enable) in order to evaluate the module with-
out using a DSP. By setting correctly its limiters it will be
possible to run a long term test without audio interruption,
that would be otherwise triggered due to module internal
protection of over temperature or over power.