Datasheet

2003 Apr 10 30
NXP Semiconductors Preliminary specification
Stereo audio codec with SPDIF interface UDA1355H
12 Data path:
• Input ADC to outputs I
2
S or SPDIF
• Inputs I
2
S and SPDIF to output DAC.
Features:
• BCK and WS of I
2
S output are master
• Inputs SPDIF and I
2
S to output DAC
with mixing/selection possibility; clocks
are generated from SPDIF input signal,
and BCK and WS are master
• SPDIF input channel status bits (two
times 40) can be read
• SPDIF output channel status bits (two
times 40) setting.
13 Data path:
• Input ADC to output I
2
S
• Inputs I
2
S and SPDIF to outputs DAC
or SPDIF.
Features
• BCK and WS being master
• SPDIF input channel status bits (two
times 40) can be read
• Output SPDIF supported but the timing
not according to level II
• Output SPDIFOUT loop through can
be selected with independent SPDIF
input channel select.
14 Data path:
• Inputs ADC and I
2
S to outputs DAC
SPDIF and I
2
S.
Features:
• All clocks are related to WS signal of
I
2
S-bus input
• Master BCK and WS for I
2
S output;
slave BCK and WS for I
2
S input
• SPDIF output channel status bits (two
times 40) can be set; level II timing
depends on the I
2
S-bus clocks.
15 Not used
MODE FEATURE SCHEMATIC
I
2
S mast
erI
2
S slave
PLL
SPDIF LOCK
XTAL
SPDIF IN
SPDIF OUT
ADC
MGU851
MUTE
I
2
S OUTPUT
DAC
I
2
S INPUT
ADC
MGU852
SPDIF IN
MUTE
I
2
S OUTPUT
PLL
SPDIF LOCK
DAC
I
2
S INPUT
SPDIF OU
T
SPDIF
OUT
XTAL
I
2
S maste
r
I
2
S slave
SPDIF OUT
PLL
ADC
MGU853
MUTE
I
2
S OUTPUT
DAC
I
2
S INPUT
I
2
S mast
erI
2
S slave
I
2
S LOCK