BSP3505D Micronas Intermetall GmbH, BSP3505D Datasheet - Page 15

• Manufacturer Part Number: BSP3505D
• Manufacturer: Micronas Intermetall GmbH

Micronas
PRELIMINARY DATA SHEET
4.4.4. Treble Loudspeaker Channel
With positive treble settings, internal overflow may occur
even with overall volume less than 0 dB. This will lead to
a clipped output signal. Therefore, it is not recom-
mended to set treble to a value that, in conjunction with
volume, would result in an overall positive gain.
Treble Loudspeaker
+15 dB
+14 dB
+1 dB
+1/8 dB
0 dB
–1/8 dB
–1 dB
–11 dB
–12 dB
0003
0111 1000
0111 0000
0000 1000
0000 0001
0000 0000
RESET
1111 1111
1111 1000
1010 1000
1010 0000
hex
H
78
70
08
01
00
FF
F8
A8
A0
hex
hex
hex
hex
hex
hex
hex
hex
hex
4.4.5. Loudness Loudspeaker Channel
Loudness increases the volume of low and high frequen-
cy signals, while keeping the amplitude of the 1 kHz ref-
erence frequency constant. The intended loudness has
to be set according to the actual volume setting. Be-
cause loudness introduces gain, it is not recommended
to set loudness to a value that, in conjunction with vol-
ume, would result in an overall positive gain.
By means of ‘Mode Loudness’, the corner frequency for
bass amplification can be set to two different values. In
Super Bass mode, the corner frequency is shifted up.
The point of constant volume is shifted from 1 kHz to
2 kHz.
Loudness
Loudspeaker
+17 dB
+16 dB
+1 dB
0 dB
Mode Loudness
Loudspeaker
Normal (constant
volume at 1 kHz)
Super Bass (constant
volume at 2 kHz)
0004
0100 0100
0100 0000
0000 0100
0000 0000
RESET
0004
0000 0000
RESET
0000 0100
BSP 3505D
hex
hex
H
44
40
04
00
L
00
04
hex
hex
hex
hex
hex
hex
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