Sanyo DVD-SL33KR, Руководство по обслуживанию

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IC BLOCK DIAGRAM & DESCRIPTION
U0403 WM8761ED(STEREO ADC)
DAC
DAC
8 7
5
VDD
14
MCLK
GND
CAP
9 VOUTL
2 DIN
1 LRCIN
3
BCKIN
13 10 12
6
VOUTR
LOW
PASS
FILTER
LOW
PASS
FILTER
SIGMA
DELTA
MODULATOR
SIGMA
DELTA
MODULATOR
DIGITAL FILTERS
MUTE
MUTE
AUDIO
INTERFACE
CONTROL
INTERFACE
FORMA
T
MUTE DEEMPH
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
NAME
LRCIN
DIN
BCKIN
NC
CAP
VOUTR
GND
VDD
VOUTL
MUTE
NC
DEEMPH
FORMAT
MCLK
TYPE
Digital input
Digital input
Digital input
No connect
Analogue output
Analogue output
Supply
Supply
Analogue outpur
Digital input
No connect
Digital input
Digital input
Digital input
Note:
1. Digital input pins have Schmitt trigger input buffers.
DESCRIPTION
Sample rate clock input
Serial audio data input
Bit clock input
No internal connection
Analogue internal reference
Right channel DAC output
Negative supply
Positive supply
Left channel DAC output
Soft mute control, Internal pull down
High Impedance = Automute
High = Mute ON
Low = Mute OFF
No internal connection
De-emphasis select, Internal pull up
High = de-emphasis ON
Low = de-emphasis OFF
Data input format select, Internal pull up
Low = 24-bit right justified or DSP ’late’
High = 16-24-bit I S or DSP ’early’
Master clock input
2