HCD-M90
59
59
FB300
R327
R328
FB311
FB313
FB314
FB315
FB316
FB317
FB318
FB319
FB320
FB321
FB322
R329
D305
D304
FB301
C320
Q306
R323
D303
R326
R305
FB302
R313
C315
C316
C313
C314
FB305
C312
C311
R308
R307
R315
C307
C308
C309
FB303
C310
FB304
R312
R310
R309
C301
IC301
C319
R316
Q302
C318
C317
Q303
R304
Q307
C302
C306
FB306
FB307
FB308
FB309
FB310
R319
C330
R303
C305
JR311
R320
CN300
CN301
100
0
100k
1SS355TE-17
1SS355TE-17
0.1
SRC1202S
2.2k
1SS355TE-1
10k
0
1k
0.1
47
16V
0.1
100
6.3V
0.1
100
6.3V
10k
10k
0
0.1
0.1
100
6.3V
0.1
100
10k
2.2k
0.1
TC7WU04FU
0.001
0
2SA1037AK
47
16V
0.1
SRC1202S
0
2SA1037AK
100
6.3V
100
6.3V
330p
100
0.47
50V
0
0
5P
13P
DGND
LOUT
ROUT
AGND
DOUT
PLLPWR
A3.3V
DGND
DINSEL
SYS 3.3V
MUTE-IN
INVERTER
BCK
LRCLK
SDATA
SPDIF
PLL-LOCK DETECT
DAC_RESET
B+ SWITCH
D/A CONVERTER
DATA SELECT
SWITCH
PLL LOCK DETECT
Q306,307
6-31. SCHEMATIC DIAGRAM – DAC Board –
•
See page 82 for Waveforms.
•
See page 85 for IC Block Diagram.
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
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TEL 13942296513 QQ 376315150 892498299