MSP3405D Datasheet, PDF (41/71 Pages) List of Unclassifed Manufacturers – Multistandard Sound Processors

PRELIMINARY DATA SHEET
MSP 34x5D
There are several spatial effect modes available:
Mode A (low byte = 00_hex) is compatible to the formerly
used spatial effect. Here, the kind of spatial effect de-
pends on the source mode. If the incoming signal is in
mono mode, Pseudo Stereo Effect is active; for stereo
signals, Pseudo Stereo Effect and Stereo Basewidth
Enlargement is effective. The strength of the effect is
controllable by the upper byte. A negative value reduces
the stereo image. A rather strong spatial effect is recom-
mended for small TV sets where loudspeaker spacing is
rather close. For large screen TV sets, a more moderate
spatial effect is recommended. In mode A, even in case
of stereo input signals, Pseudo Stereo Effect is active,
which reduces the center image.
In Mode B, only Stereo Basewidth Enlargement is effec-
tive. For mono input signals, the Pseudo Stereo Effect
has to be switched on.
It is worth mentioning, that all spatial effects affect ampli-
tude and phase response. With the lower 4 bits, the fre-
quency response can be customized. A value of 0000_bin
yields a flat response for center signals (L = R) but a high
pass function of L or R only signals. A value of 0110_bin
has a flat response for L or R only signals but a lowpass
function for center signals. By using 1000_bin, the fre-
quency response is automatically adapted to the sound
material by choosing an optimal high pass gain.
7.3.7. Volume SCART1
Volume Mode SCART1
linear
logarithmic
0007_hex
0000
RESET
0001
[3..0]
0_hex
1_hex
Linear Mode
Volume SCART1
OFF
0 dB gain
(digital full scale (FS)
to 2 V_RMS output)
+6 dB gain (–6 dBFS
to 2 V_RMS output)
0007_hex
0000 0000
RESET
0100 0000
H
00_hex
40_hex
0111 1111
7F_hex
Logarithmic Mode
Volume SCART1
+12 dB
+11.875 dB
0007_hex
[15..4]
0111 1111 0000 7F0_hex
0111 1110 1110 7EE_hex
+0.125 dB
0 dB
–0.125 dB
0111 0011 0010 732_hex
0111 0011 0000 730_hex
0111 0010 1110 72E_hex
–113.875 dB
–114 dB
Mute
0000 0001 0010 012_hex
0000 0001 0000 010_hex
0000 0000 0000 000_hex
RESET
7.3.8. Channel Source Modes
Loudspeaker Source
SCART1 Source
I²S Source
Quasi-Peak
Detector Source
FM/AM
NICAM (MSP 3415D only)
SCART
I²S1
I²S2
0008_hex
000A_hex
000B_hex
000C_hex
0000 0000
RESET
0000 0001
0000 0010
0000 0101
0000 0110
H
H
H
H
00_hex
01_hex
02_hex
05_hex
06_hex
7.3.9. Channel Matrix Modes
Loudspeaker Matrix
SCART1 Matrix
I²S Matrix
Quasi-Peak
Detector Matrix
SOUNDA / LEFT /
MSP-IF-CHANNEL2
SOUNDB / RIGHT /
MSP-IF-CHANNEL1
STEREO
MONO
0008_hex
L
000A_hex
L
000B_hex
L
000C_hex
L
0000 0000
RESET
0001 0000
00_hex
10_hex
0010 0000
0011 0000
20_hex
30_hex
Micronas
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