Datasheet

2003 Apr 10 52
NXP Semiconductors Preliminary specification
Stereo audio codec with SPDIF interface UDA1355H
Table 54 Data source selector DAC channel 1 and 2; note 1
Note
1. The change of the data source will take place only when the mix mode is turned on (bit MIX = 1).
The channel 2 input selection is valid only when the channel 1 data source is correct.
Table 55 Register addresses 19H, 1AH, 1BH, 1CH, 1DH and 1EH
Table 56 Description of register bits (addresses 19H, 1AH, 1BH, 1CH, 1DH and 1EH)
12.2.3 D
ECIMATOR SETTINGS
Table 57 Register address 20H
DAC_CH2_SEL1 DAC_CH2_SEL0
DATA OUTPUT DAC
DAC_CH1_SEL1 DAC_CH1_SEL0
0 0 ADC input
01I
2
S-bus input
1 0 IEC 60958 input
11I
2
S-bus input
BIT15141312111098
Symbol −−BASS_x_13 BASS_x_12 BASS_x_11 BASS_x_10 BASS_x_9 BASS_x_8
Default000 0 0 000
BIT765 4 3 210
Symbol BASS_x_7 BASS_x_6 BASS_x_5 BASS_x_4 BASS_x_3 BASS_x_2 BASS_x_1 BASS_x_0
Default000 0 0 000
BIT SYMBOL DESCRIPTION
15 and 14 − reserved
13 to 0 BASS_x_[13:0] Resonant bass boost coefficient x. Six 14-bit registers are used as the filter
coefficients to specify the bass boost characteristics. The six coefficients are k1, km,
a1, a2, b1 and b2m. A software program is available for users to generate these six
14-bit coefficients by entering the desired centre frequency, peak gain, sampling
frequency and shape factor (default flat response).
BIT151413121110 9 8
Symbol MA_
DECL7
MA_
DECL6
MA_
DECL5
MA_
DECL4
MA_
DECL3
MA_
DECL2
MA_
DECL1
MA_
DECL0
Default00000000
BIT76543210
Symbol MA_
DECR7
MA_
DECR6
MA_
DECR5
MA_
DECR4
MA_
DECR3
MA_
DECR2
MA_
DECR1
MA_
DECR0
Default00000000