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1999 Apr 14 26
Philips Semiconductors Product specification
Audio processor with head amplifier for VHS hi-fi TDA9605H
Table 21 Output select normal, right and left (bits OSN, OSR and OSL)
Note
1. Power-on reset state.
In case the dub-mix mode is selected via the input select function, the performance of mix-left, mix-right and mix-stereo
modes is changed to support audio dubbing input mixing. The hi-fi channel is available for the input select function and
normal sound is available at the output for monitoring the linear audio recording. The auto-normal state is ignored during
the dub-mix mode and the hi-fi playback signal is muted instead.
Table 22 Dub-mix mode (bits OSN, OSR and OSL)
7.7.3 E
NVELOPE OUTPUT SELECT
The output signal on pin ENVOUT is selected via the envelope select function.
In the playback mode the HF envelope displays the amplitude of the left channel carrier. Display of the right channel
carrier amplitude for special measurement purposes can be selected via test 10 in the test mode.
Table 23 Envelope output select (bit EOS)
Notes
1. X = don’t care.
2. Power-on reset state.
OSN OSR OSL MODE DESCRIPTION
0 0 0 mute mute; no selection; note 1
0 0 1 left left hi-fi channel selected (language 1)
0 1 0 right right hi-fi channel selected (language 2)
0 1 1 stereo hi-fi stereo selected
1 0 0 normal normal signal selected (linear audio from pin LININ)
1 0 1 mix-left mix of hi-fi left with normal (
1
⁄
2
× left +
1
⁄
2
× normal)
1 1 0 mix-right mix of hi-fi right with normal (
1
⁄
2
× right +
1
⁄
2
× normal)
1 1 1 mix-stereo mix of hi-fi stereo with normal (
1
⁄
2
× stereo +
1
⁄
2
× normal)
OSN OSR OSL MODE OUTPUT IN DUB-MIX MODE INPUT IN DUB-MIX MODE
0 0 0 mute mute mute
0 0 1 left left channel left channel
0 1 0 right right channel right channel
0 1 1 stereo stereo signal
1
⁄
2
× left +
1
⁄
2
× right
1 0 0 normal normal signal mute
1 0 1 mix-left normal signal left channel
1 1 0 mix-right normal signal right channel
1 1 1 mix-stereo normal signal
1
⁄
2
× left +
1
⁄
2
× right
AFM EOS MODE DESCRIPTION
X
(1)
0 output select audio peak envelope of selected signal via output select function; note 2
0 1 HF envelope HF envelope of the left channel carrier in the playback mode
1 1 stereo envelope audio peak envelope of the hi-fi stereo signal in the record mode