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ISSUE
DRAWING NO.
DRAWING TITLE
DATE
Filename:
ECO No. DESCRIPTION OF CHANGE
L971C6.Sch
DV29 MAIN DAC CENTRE & SUB
Contact Engineer:
L971C6
24-Aug-2004
INITIALS
Printed:
6 11Sheet of
Notes:
Contact Tel: (01223) 203270Peter Gaggs
A & R Cambridge Ltd.
Pembroke Avenue
Cambridge CB5 9QR
Waterbeach
A2
L600
120R@100MHz
+3V3A
C602
10UF
35V
SGET
C614
100N
50V
0805
+5VA
C600
10UF
35V
SGET
C606
100N
50V
0805
C607
100N
50V
0805
C608
100N
50V
0805
DGND
DGND
DGND
+3V3_DAC2
C603
10UF
35V
SGET
C615
100N
50V
0805
C604
10UF
35V
SGET
C616
100N
50V
0805
DGND
ALRCLK_DAC2
ADAT_DAC2
ABCLK_DAC2
MCLK_DAC2
ALRCLK_DAC2
ADAT_DAC2
ABCLK_DAC2
MCLK_DAC2
MD
MC
ML_8740_2
MD
MC
ML_8740_2
DGND
+3V3_DAC2
RESET*
RESET*
R600
3K3
0W125
0805
C622
2N2
100V
FKP2
R602
3K3
0W125
0805
C626
680P
100V
FKP2
R608
680R
0W125
0805
R601
3K3
0W125
0805
C623
2N2
100V
FKP2
R609
680R
0W125
0805
R603
3K3
0W125
0805
C627
680P
100V
FKP2
6
5
7
IC600B
OPA2134UA
SO-8
DGND
DGND
2nd order Bessel filter, Av=1
C601
10UF
35V
SGET
C609
100N
50V
0805
C605
10UF
35V
SGET
C617
100N
50V
0805
+12VA
DGND
-12VA
DGND
R604
3K3
0W125
0805
C624
2N2
100V
FKP2
R606
3K3
0W125
0805
C628
680P
100V
FKP2
R610
680R
0W125
0805
R605
3K3
0W125
0805
C625
2N2
100V
FKP2
R611
680R
0W125
0805
R607
3K3
0W125
0805
C629
680P
100V
FKP2
2
3
1
84
IC600A
OPA2134UA
SO-8
DGND
DGND
2nd order Bessel filter, Av=1
DAC
FILTER
6
5
7
IC601B
OPA2134UA
SO-8
R612
10K
0W125
0805
C610
100N
50V
0805
C611
100N
50V
0805
R618
1M0
0W125
0805
C630
33P
100V
0805
C632
100UF
16V
NONP
R620
47R
0W125
0805
R621
47R
0W125
0805
+12VA
DGND
-12VA
DGND
DGND
OUTPUT BUFFER
Gain of -1.1
Cheapo version could have bipolar op-amp, but without feedback round coupling cap
2
3
1
84
IC601A
OPA2134UA
SO-8
R614
10K
0W125
0805
R619
1M0
0W125
0805
C631
33P
100V
0805
C633
100UF
16V
NONP
R622
47R
0W125
0805
R623
47R
0W125
0805
DGND
+12VA
-12VA
+12VA
-12VA
RLY600B
NEC
EB2-5NU
DGND
DGND
DGND
RLY600A
NEC
EB2-5NU
DGND
R616
11K
0W125
0805
R617
11K
0W125
0805
D600
BAT54S
SOT-23
D601
BAT54S
SOT-23
R624
0R0 0W125
0805
R626
0R0 0W125
0805
R613
47K
0W125
0805
R615
47K
0W125
0805
P619
P620
P607
P608
P613 P614
P615
P618
P625 P626
P627
P630
P631
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
ML/I2S
28
DVDD
8
DGND
7
LRCKIN
1
BCKIN
3
DIN
2
DIFFHW
6
SCLK
5
RSTB
22
VOUTL+
17
MODE8X
4
VOUTR+
12
MODE
24
AGNDL
19
ZERO
21
VOUTL-
16
VMIDL
18
VOUTR-
13
AVDDR
9
AGNDR
10
VMIDR
11
MC/DM1
27
CSBIOW
23
MUTEB
25
MD/DM0
26
AVDDL
20
AGND
14
AVDD
15
IC602
XWM8740EDS
SSOP-28
Fit on top of RLY600
C612
100N
100V
MKS2
C613
100N
100V
MKS2
C620
47P
100V
0805
C621
47P
100V
0805
CENTRE_OUT
SUB_OUT
Connector on sheet 5
Connector on sheet 5
ITEM600 1 Pad Damping 7.5x6x3MM RubberE828AP
ALL PARTS ON THIS SHEET ARE NOT FITTED FOR DV75
PG 1.004_E121 09-08-04 Production release