TDA9875 datasheet(49/92 Pages) PHILIPS

49 / 92 page

1998 Feb 13

Philips Semiconductors

Preliminary speciﬁcation

Digital TV Sound Processor (DTVSP)

TDA9875

Table 48 Description of bit SC2GAIN (note 1)

Note

1. A possibility to copy from SCART 2 input to SCART 2 output is not implemented.

10.3.19 LINE OUTPUT SELECT REGISTER

10.3.19.1 Description

By definition, the line output conveys the same signal as the Main (loudspeaker) channel, but in a non-processed form.

This register is used to characterize the signal to be output at the line output and define the output channel selector mode.

10.3.19.2 Deﬁnition

Table 49 Subaddress 22 (note 1)

Note

1. The default setting at power-up is 00000000.

Table 50 Bits B5 and B4

NAME

HIGH/LOW

FUNCTION

SC2GAIN

HIGH

Activates the 3 dB gain stage at the SCART 2 output port. As any SCART input passes

a 3 dB attenuator, this gain stage can be used to compensate that attenuation, resulting

in a 0 dB insertion loss when copying from SCART 1 input to SCART 2 output.

However, that gain must be used with great care, as it will cause signal clipping at high

input levels.

LOW

The audio signal will be output unchanged (0 dB gain).

BIT

NAME

DESCRIPTION

7 (MSB)

don’t care

LINGAIN

line output gain on/off; see Table 51

see Table 50

don’t care

0 (LSB)

LINSEL

select source for line output; see Table 51

L OUTPUT

R OUTPUT

L input

R input

L input

R input

L input

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