UDA1342 PHILIPS [NXP Semiconductors], UDA1342 Datasheet - Page 14

• Manufacturer Part Number: UDA1342
• Description: Audio CODEC
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
8.14
The controllable features in the static pin mode are:
8.14.1
In the static pin mode pin L3CLOCK is used to select the
system clock setting.
Table 7 System clock setting
8.14.2
In the static pin mode the digital interface audio formats
can be selected via pins L3DATA and QMUTE. The
following interface formats can be selected (see Table 8):
Table 8
8.14.3
In the static pin mode pin IPSEL selects the ADC input
channel.
Table 9 ADC input channel select
2000 Mar 29
L3DATA
System clock frequency
Data input and output format select
ADC input channel select.
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MSB-justified output format and LSB-justified input
format with data word length of 16, 20 or 24 bits.
Audio CODEC
IPSEL
2
S-bus format with data word length of up to 24 bits
PIN
PIN
0
0
1
1
0
1
L3CLOCK
Static pin mode
S
D
ADC
PIN
YSTEM CLOCK SETTING SELECT
Data format select in static pin mode
IGITAL INTERFACE FORMAT SELECT
0
1
input channel 1 (pins VINL1 and VINR1)
input channel 2 (pins VINL2 and VINR2)
QMUTE
INPUT CHANNEL SELECT
PIN
0
1
0
1
CHANNEL SELECT
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LSB-justified 16 bits input and
MSB-justified output
LSB-justified 20 bits input and
MSB-justified output
LSB-justified 24 bits input and
MSB-justified output
2
S
SYSTEM CLOCK SETTING
INPUT/OUTPUT FORMAT
256f
384f
s
s
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8.15
All digital processing features and system controlling
features of the UD1342TS can be controlled by a
microcontroller via the L3-bus interface.
The controllable features are:
8.15.1
The exchange of data and control information between the
microcontroller and the UDA1342TS is accomplished
through a serial hardware interface comprising the
following pins:
The UDA1342TS acts as a slave receiver or a slave
transmitter. Therefore L3CLOCK and L3MODE lines
transfer only input data and the L3DATA line transfers
bidirectional data.
Reset
System clock frequency
Data input and output format
Multi purpose output
ADC features
– Operation mode control
– Polarity control
– Input amplifier gain control
– Mixer control
– DC filtering.
DAC features
– Power control
– Polarity control
– Input data oversampling rate
– Mixer position selection
– Mixer control
– Silence detector
– De-emphasis
– Volume
– Flat/min./max. switch
– Bass boost
– Treble
– Mute
– Quick mute mode.
L3DATA: microcontroller interface data line
L3MODE: microcontroller interface mode line
L3CLOCK: microcontroller interface clock line.
L3-bus interface
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NTRODUCTION
Preliminary specification
UDA1342TS