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1999 Apr 14 25
Philips Semiconductors Product specification
Audio processor with head amplifier for VHS hi-fi TDA9605H
7.6.2 NORMAL SELECT
The normal select function defines which of the input signals is forwarded to pin LINOUT for the connection to an external
linear audio circuit.
Table 19 Normal select (bits NS2, NS1 and NS0)
Note
1. Power-on reset state.
7.7 Output byte at subaddress 03H
The output byte is used for selecting and controlling the output.
7.7.1 L
INE OUTPUT AMPLIFICATION
An additional 1 dB amplification for the line and decoder outputs on pins LINEL, LINER, DECL and DECR can be
selected by the line output high function.
Table 20 Line output high (bit LOH)
Note
1. Power-on reset state.
7.7.2 O
UTPUT SELECT
The auto-normal function is activated when no hi-fi signal is found on tape in the playback mode. Except for the mute
mode, all output select function modes will be overruled and changed to normal. Control of normal input level should be
set to mute for muting the hi-fi sound. The state of the auto-normal function can be monitored by reading bit AUTN of the
read byte.
NS2 NS1 NS0 MODE DESCRIPTION
0 0 0 input select left plus right channel signal selected by input select
0 0 1 volume left plus right channel signal including hi-fi volume control
selected by input select
0 1 0 input-left left channel only (language 1) selected by input select
0 1 1 volume-left left channel only (language 1) including hi-fi volume control
selected by input select
1 0 0 SAP mono input signal from pin SAP
1 0 1 tuner tuner input signal from pins TUNL and TUNR
1 1 0 ext2 external input signals from pins EXT2L and EXT2R
1 1 1 mute mute of the input signals; note 1
LOH MODE DESCRIPTION
0 0 dB no line output amplification; note 1
1 1 dB 1 dB line output amplification