Philips Semiconductors
Preliminary specification
Stereo audio codec with SPDIF interface
UDA1355H
MODE
FEATURES
SCHEMATIC
5
Data path:
• Input ADC to outputs I2S or SPDIF
• Input I2S to output DAC.
Features:
XTAL
MUTE
ADC
• Possibility to process input ADC via
I2S-bus using an external DSP and
then to output DAC
DAC
SPDIF OUT
• Crystal oscillator generates the clocks
• I2S input and output with BCK and WS
2
2
I S INPUT
I S OUTPUT
are master
2
2
I S slave
I S master
• Microcontroller mode: see Section 8.4.
EXTERNAL DSP
(e.g. equalizing, spatializing)
(SAA7715)
MGU841
6
Data path:
• Input ADC to output I2S
• Input I2S to outputs DAC or SPDIF
(level II not guaranteed: depends on
I2S-bus clock).
2
I
S LOCK
XTAL
PLL
MUTE
ADC
DAC
Features:
• Possibility to process input ADC via
I2S-bus using an external DSP and
then to outputs DAC or SPDIF
SPDIF OUT
2
2
I S INPUT
I S OUTPUT
• Crystal oscillator generates the clocks
for input ADC and output I2S
2
2
I S slave
I S master
• WSI is slave
EXTERNAL DSP
(SAA7715)
• WSO is master
• Microcontroller mode: see Section 8.4.
MGU842
2003 Apr 10
23
NXP [ NXP ]
