SRS-X9
SRS-X9
40
40
• Waveforms
– MAIN Board –
356 ns
4.3 Vp-p
9
IC013
7
1 V/DIV, 200 ns/DIV
0
IC013
9
1 mV/DIV, 10
P
s/DIV
22.7
P
s
4.2 Vp-p
qa
IC905
1
(BOOT)
10 V/DIV, 1
P
s/DIV
1.6
P
s
25.6 Vp-p
qs
IC906
1
(BOOT)
10 V/DIV, 1
P
s/DIV
1.6
P
s
25.6 Vp-p
1
IC002
qf
(AUDIO-MCLK)
1 V/DIV, 20 ns/DIV
40.6 ns
3.8 Vp-p
2
IC002
wl
(AUDIO-BCLK)
1 V/DIV, 50 ns/DIV
81.5 ns
4.1 Vp-p
5.2
P
s
4.1 Vp-p
3
IC002
e;
(AUDIO-LRCK)
1 V/DIV, 2
P
s/DIV
4
IC002
ts
(AUDIO-BCLK1)
1 V/DIV, 100 ns/DIV
164 ns
4.2 Vp-p
10.4
P
s
3.8 Vp-p
5
IC002
td
(AUDIO-LRCK1)
1 V/DIV, 5
P
s/DIV
6
IC002
ua
(XTAL)
1 V/DIV, 50 ns/DIV
75 ns
3.3 Vp-p
7
IC002
oa
(AUDIO-X1)
1 V/DIV, 20 ns/DIV
40.4 ns
3.8 Vp-p
8
IC002
<zv/
(USB-X2)
500 mV/DIV, 10 ns/DIV
21 ns
1.1 Vp-p
• IC Block Diagrams
– MAIN Board –
IC009 PCM1808PWR
IC010 BU4229F-TR
IC014, 912 MM3411A33NRE
IC402 TS3USB221RSER
DELTA-SIGMA
MODULATOR
DELTA-SIGMA
MODULATOR
ANTIALIAS
LOW-PASS FILTER
ANTIALIAS
LOW-PASS FILTER
AGND
VCC
2
3
VDD
DGND
4
5
LRCK 7
REFERENCE
u
1/64
DECIMATION
FILTER
WITH
HIGH-PASS
FILTER
SERIAL
INTERFACE
&
MODE/FORMAT
CONTROL
FMT
12
VINR
14
VINL
13
MD1
11
MD0
10
DOUT
9
BCK
8
CLOCK & TIMING CONTROL
POWER
SUPPLY
SCKI 6
VREF 1
–
+
VDD 2
GND 1
VOUT
4
CT
3
VREF
VOUT
5
NC
4
CE 3
GND 2
VDD 1
+
VOLTAGE
REFERENCE
CURRENT
LIMIT
BIAS
1D+
D+
1
8
S
VCC
9
D–
7
1D– 2
OE
6
5
10
CONTROL
SWITCH
2D+ 3
2D–
GND
4
