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Audio outputs are inverted so as to be compatible with
DV88. This is compenstaed for in software by setting a
register in the DAC to invert the signal
ALL PARTS ON THIS SHEET ARE NOT FITTED FOR DV75
+5VA
C600
C606
C607
C608
10UF
100N
100N
100N
35V
50V
50V
50V
SGET
0805
0805
0805
DGND
+3V3A
+3V3_DAC2
L600
C602
120R@100MHz
C614
DAC
10UF
100N
35V
50V
SGET
0805
DGND
ALRCLK_DAC2
1
ALRCLK_DAC2
LRCKIN
VOUTL+
ADAT_DAC2
2
ADAT_DAC2
DIN
ABCLK_DAC2
3
ABCLK_DAC2
BCKIN
VOUTL-
MCLK_DAC2
5
MCLK_DAC2
SCLK
VOUTR+
VOUTR-
MD
26
MD
MD/DM0
MC
27
MC
MC/DM1
ML_8740_2
28
P631
ML_8740_2
ML/I2S
VMIDL
+3V3_DAC2
23
CSBIOW
VMIDR
24
MODE
4
MODE8X
6
DIFFHW
25
MUTEB
RESET*
22
RESET*
RSTB
ZERO
DGND
DGND
FILTER
2nd order Bessel filter, Av=1
R600
R608
P607
680R
C620
3K3
C622
R602
0W125
2N2
3K3
0W125
0805
47P
100V
0W125
0805
100V
FKP2
0805
0805
DGND
R601
R609
P608
680R
3K3
C623
0W125
0W125
2N2
0805
100V
0805
FKP2
DGND
IC602
17
16
12
13
18
11
C603
C604
C615
C612
C616
C613
10UF
100N
100N
10UF
100N
100N
21
35V
35V
50V
100V
50V
100V
SGET
SGET
0805
MKS2
0805
MKS2
DGND
XWM8740EDS
SSOP-28
2nd order Bessel filter, Av=1
R604
R610
P620
680R
C621
3K3
C624
R606
0W125
0W125
2N2
3K3
0805
47P
100V
0W125
0805
100V
FKP2
0805
0805
DGND
P619
R605
R611
680R
3K3
C625
0W125
0W125
2N2
0805
0805
100V
FKP2
DGND
DGND
C626
IC600B
680P
5
R612
100V
P613
7
FKP2
6
10K
OPA2134UA
0W125
SO-8
0805
C627
680P
100V
FKP2
R603
3K3
0W125
0805
+12VA
C601
C609
10UF
100N
35V
50V
SGET
0805
DGND
C628
IC600A
680P
3
R614
P625
100V
1
FKP2
2
10K
OPA2134UA
0W125
SO-8
0805
C629
680P
100V
FKP2
R607
3K3
0W125
0805
C605
C617
10UF
100N
35V
50V
SGET
0805
-12VA
OUTPUT BUFFER
Gain of -1.1
Cheapo version could have bipolar op-amp, but without feedback round coupling cap
R616
11K
0W125
0805
C630
R618
33P
1M0
100V
0W125
0805
0805
IC601B
P614
C632
6
R620
R621
P615
7
5
47R
47R
OPA2134UA
100UF
0W125
0W125
DGND
SO-8
16V
0805
0805
NONP
R613
47K
0W125
0805
DGND
RLY600B
DGND
NEC
EB2-5NU
R617
11K
+12VA
0W125
0805
C610
100N
50V
0805
C631
R619
33P
1M0
DGND
100V
0W125
IC601A
0805
0805
P626
C633
2
P627
R622
R623
1
3
47R
47R
OPA2134UA
100UF
0W125
0W125
DGND
SO-8
16V
0805
0805
NONP
DGND
C611
R615
100N
47K
50V
0W125
0805
0805
-12VA
DGND
RLY600A
DGND
NEC
EB2-5NU
ITEM600
1
E828AP
Pad Damping 7.5x6x3MM Rubber
DRAWING TITLE
DV79 MAIN DAC CENTRE & SUB
Filename:
L974C6.Sch
Notes:
04_E142
A & R Cambridge Ltd.
04_E129
Pembroke Avenue
ECO No.
Waterbeach
Cambridge CB5 9QR
Contact Engineer:
Peter Gaggs
Contact Tel:
(01223) 203270
+12VA
D600
BAT54S
SOT-23
-12VA
P618
Connector on sheet 5
R624
CENTRE_OUT
0R0 0W125
0805
+12VA
D601
BAT54S
SOT-23
-12VA
P630
Connector on sheet 5
R626
SUB_OUT
0R0 0W125
0805
Fit on top of RLY600
PG
23-09-04
Correct BOM error - R320 now fitted
1.1
PG
24-08-04
Production release
1.0
INITIALS
DATE
DESCRIPTION OF CHANGE
ISSUE
L974C6
Printed:
23-Sep-2004
Sheet
6
of
11
A2
DRAWING NO.
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