UDA1351 PHILIPS [NXP Semiconductors], UDA1351 Datasheet - Page 23

• Manufacturer Part Number: UDA1351
• Description: 96 kHz IEC 958 audio DAC
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
8.7.8.13
A 1-bit value to activate mute during out-of-lock. In normal
operation the output is automatically hard muted when an
out-of-lock situation is detected. Setting this bit to logic 0
will disable that function.
Table 21 Auto mute setting
8.7.8.14
A 1-bit value to reset the PLL. This is the bit which is set in
the initialization string. When this bit is asserted, the PLL
will be reset and the output clock of the PLL will be forced
to its lowest value, which is in the area of a few MHz.
Table 22 PLL reset
8.7.9
8.7.9.1
A 1-bit value indicating whether the interpolator is muting
or not muting.
Table 23 Interpolator mute status
2000 Feb 18
96 kHz IEC 958 audio DAC
Auto MT
RST PLL
MT stat
0
1
0
1
0
1
R
EADABLE REGISTERS
Auto mute
PLL reset
Mute status
do not mute output during out-of-lock
mute output during out-of-lock (default
setting)
normal operation (default)
PLL is reset
no muting
muting
FUNCTION
FUNCTION
FUNCTION
23
8.7.9.2
A 1-bit value indicating that the clock regeneration is
locked.
Table 24 PLL lock indication
8.7.9.3
A 1-bit value indicating the IEC 958 decoder is locked and
is decoding correct data.
Table 25 SPDIF lock detection
8.7.9.4
A 2-bit value indicating the audio sample frequency of the
IEC 958 input signal.
Table 26 Audio sample frequency detection
ASF1
0
0
1
1
SPD lock
PLL lock
0
1
0
1
PLL lock detection
SPDIF lock detection
Audio sample frequency detection
ASF0
0
1
0
1
out-of-lock
locked
not locked or non-PCM data detected
locked and PCM data detected
44.1 kHz
undefined
48.0 kHz
32.0 kHz
FUNCTION
FUNCTION
FUNCTION
Preliminary specification
UDA1351H