uda1338h-n1 NXP Semiconductors, uda1338h-n1 Datasheet - Page 33

• Manufacturer Part Number: uda1338h-n1
• Description: Multichannel Audio Coder-decoder
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 14389
Product data sheet
11.8 DAC features settings
Table 42:
Table 43:
Table 44:
SEL1
0
0
1
1
Bit
Symbol
Reset
default
Bit
Symbol
Reset
default
Bit
15 to 14
13 to 11
10
9
8
7 to 0
DAC features register (addresses 11h)
Description of DAC features register bits
Feature selection bits
15
ICS1
0
7
VC7
0
Symbol
ICS[1:0]
DE[2:0]
PD
MT
QM
VC[7:0]
Rev. 03 — 16 February 2005
14
ICS0
0
6
VC6
0
Description
Input channel selection. A 2-bit value to select the input channels. As the
controlled channels are paired off, this 2-bit value must be written to each
odd channel register. Default 00; see
De-emphasis setting. A 3-bit value to enable the digital de-emphasis
filter. Default 000; see
Polarity DAC control. A 1-bit value to control the DAC polarity. If
bit PD = 1, then the polarity is inverted; if bit PD = 0 (default), then the
polarity is non-inverted.
Muting. A 1-bit value to enable the digital mute. All the DAC outputs are
muted at start-up. It is necessary to explicitly switch off for the audio output
by means of bit MT. If bit MT = 1 (start-up), then muting; if bit MT = 0
(default), then no muting.
Quick mute. A 1-bit value to set the quick mute mode. If bit QM = 1
(start-up), then quick mute mode; if bit QM = 0 (default), then soft mute
mode.
Interpolator volume control. An 8-bit value to program the volume
attenuation of each channel. The range is from 0 to 53 dB in steps of
0.25 dB, from 53 dB to 80 dB in steps of 3 dB and
Default 0000 0000; see
SEL0
0
1
0
1
13
DE2
0
5
VC5
0
12
DE1
0
4
VC4
0
Table
Table
46.
47.
11
DE0
0
3
VC3
0
Multichannel audio coder-decoder
Table
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Function
all features (default)
volume
mute and quick mute
de-emphasis, polarity and input
channel selection
10
PD
0
2
VC2
0
45.
UDA1338H
9
MT
0
1
VC1
0
dB.
8
QM
0
0
VC0
0
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