SM5877 Nippon Precision Circuits Inc, SM5877 Datasheet - Page 15

• Manufacturer Part Number: SM5877
• Description: 3rd-order / 2-channel D/A Converter
• Manufacturer: Nippon Precision Circuits Inc

TIMING DIAGRAMS
Input Timing (DI, BCKI, LRCI)
TYPICAL APPLICATIONS
Input Interface Circuits
Normal Speed
MUTEO
RSTN
Gain
(64fs max)
LRCI
DI
MUTE
Figure 2. Soft mute operation example
BCKI
LRCI
0 dB
–
DI
PSSL
Left channel
1024/fs
1
CXD2500
2
Sony
Initialize
MSB
3
1024/fs
Figure 3. MUTEO output timing
LRCK
DA16
DA15
XTAI
16 bits
8
9
SM5877AM
LSB
16.9344 MHz
2.1168 MHz
Signal
44.1 kHz
1/fs
Infinity-Zero (MUTEO)
The SM5877AM outputs an infinity-zero detection
output signal under the following circumstances.
Right channel
From immediately after a reset input on RSTN
until the initialization cycle finishes and the first
data cycle occurs.
When an infinity-zero occurs in the input data.
When an infinity-zero is detected, a period of 2
MUTEO goes HIGH.
(1/fs)
2 /fs
14
CKO
LRCI
DI
BCKI
DS
XTI
No Signal
0.37 seconds takes place before
MSB
16.9344 MHz crystal
NIPPON PRECISION CIRCUITS—15
SM5877
16 bits
XTO
LSB
Signal
14