Sanyo DWM-400 Service Manual page 14

IC BLOCK DIAGRAM & DESCRIPTION
IC109 WM8761ED (Stereo ADC)
3
BCKIN
AUDIO
1
LRCIN
INTERFACE
2
DIN
PIN
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Note:
1. Digital input pins have Schmitt trigger input buffers.
13 10 12
CONTROL
INTERFACE
MUTE
DIGITAL FILTERS
MUTE
NAME TYPE
LRCIN Digital input
DIN Digital input
BCKIN Digital input
NC No connect
CAP Analogue output
VOUTR Analogue output
GND Supply
VDD Supply
VOUTL Analogue outpur
MUTE Digital input
NC No connect
DEEMPH Digital input
FORMAT Digital input
MCLK Digital input
SIGMA
DELTA
MODULATOR
SIGMA
DELTA
MODULATOR
14
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'
2
High = 16-24-bit I S or DSP 'early'
Master clock input
- 13 -
LOW
DAC PASS
6 VOUTR
FILTER
LOW
DAC PASS 9 VOUTL
FILTER
5 CAP
8 7