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HCD-M90
– DAC Board –
IC302 µDA1350AH
44
43
RESET
1
VDDD (C)
2
VSSD
3
VSSD (C)
4
L3DATA
5
L3
L3CLOCK
6
INTERFACE
DATAI
7
BCKI
8
WSI
9
L3MODE
10
NC
11
– MAIN Board –
IC101, 201 TDA7296
BIPOLAR
TRANSCONDACTANCE
INPUT STAGE
MOS GAIN &
–
LEVEL SHIFTING
+
STAGE
BOOST-
STRAP
1 2
3
4
5
86
42
41 40
39 38
37 36
35
DATA
IEC 958
OUTPUT
DECODER
INTERFACE
12
13
14
15 16
17
18 19 20
THERMAL
SHUTDOWN
MOS
SHORT
OUTPUT
CIRCUIT
STAGE
PROTECTION
STANDBY/
MUTE
6
7
8 9
10
11
12
34
CLOCK
AND
TIMING
DATA
CIRCUIT
INPUT
INTERFACE
AUDIO FEATURE PROCESSOR
INTERPOLATOR
NOISE SHAPER
DAC
DAC
21
22
13
14 15
33
BCKO
32
VDDA (PLL)
31 VSSA (PLL)
30
PREEM1
29
CLKOUT
28 NC
27 VDDA
26 VSSA
25 VSSA (DAC)
24 VREF
23
TC
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