PNX3000 Просмотр технического описания (PDF) - Philips Electronics
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PNX3000 Datasheet PDF : 51 Pages
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Philips Semiconductors
Analog front end for digital video
processors
Preliminary specification
PNX3000
Table 50 Clamp mode for RGB and YUV signals
Table 54 Selection of primary audio channel
CMR
0
1
MODE
top sync clamp mode
black level clamp mode
Table 51 Clamp pulse selection for RGB and YUV signals
CLPS
MODE
0 clamp pulse of primary channel
1 clamp pulse of secondary channel
Table 52 Selection of secondary audio channel
PRA2
0
0
0
0
1
1
1
PRA1
0
0
1
1
0
0
1
PRA0
SELECTED SIGNAL
0 AMint (L) and AMext (R);
note 1
1 L1 and R1
0 L2 and R2
1 L3 and R3
0 L4 and R4
1 L5 and R5
1 AMext (L) and AMint (R);
note 1
SEA2
0
0
0
0
1
1
1
1
SEA1
0
0
1
1
0
0
1
1
SEA0
0
1
0
1
0
1
0
1
SELECTED SIGNAL
AMint (L) and AMext (R);
note 1
L1 and R1
L2 and R2
L3 and R3
L4 and R4
L5 and R5
MIC1 (L) and MIC2 (R)
AMext (L) and AMint (R);
note 1
Note
1. Selection between AMint and AMext must be done by
digital video processor.
Table 53 Secondary audio channel mode
MONO
0
1
1
1
1
MNM1
−
0
0
1
1
MNM0
MODE
− stereo; see Table 52
0 mono (L) and AMint (R);
note 1
1 mono (L) and AMext (R);
note 1
0 mono (L) and MIC1 (R);
note 1
1 mono (L) and MIC2 (R);
note 1
Note
1. Selection between AMint and AMext must be done by
digital video processor.
Table 55 Gain from DSND inputs to SCART outputs
DSG
0
1
GAIN
0 dB; to be used with 5 V audio supply
6 dB; to be used with 8 V audio supply
Table 56 Selection of SCART1 audio output
AMX
0
0
0
0
0
0
0
0
1
A1S2
0
0
0
0
1
1
1
1
0
A1S1
0
0
1
1
0
0
1
1
0
A1S0
0
1
0
1
0
1
0
1
0
SELECTED
SIGNAL
AMint
LR1
LR2
LR3
LR4
LR5
DSND1
DSND2
AMext
Note
1. Mono is (L + R)/2; when AM is selected in Table 52,
mono is AMint for SEA[2:0] = 000 and AMext for
SEA[2:0] = 111. A more comprehensive table can be
found in the application note.
2004 Oct 04
20
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