HCD-GT111/GT222/GT444/GT555
HCD-GT111/GT222/GT444/GT555
54
54
• Waveforms
– CD Board –
IC101
JB
(RFi)
(CD play mode)
500 mV/DIV, 500 ns/DIV
1.2 Vp-p
RB
ICIC901
VE
(X2)
1 V/DIV, 50 ns/DIV
111 ns
3.7 Vp-p
XB
L501
(TAPE REC mode)
10 V/DIV, 5
μ
s/DIV
13.6
μ
s
56 Vp-p
FT
IC401
RE
(X-OUT)
1 V/DIV, 100 ns/DIV
200 ns
3.5 Vp-p
IC101
(FEi)
(CD play mode)
200 mV/DIV, 500 ns/DIV
Approx.
400 mVp-p
IC101
(TEi)
(CD play mode)
200 mV/DIV, 500 ns/DIV
Approx.
500 mVp-p
59 ns
3.2 Vp-p
IC101
XG
(XO)
(CD play mode)
1 V/DIV, 20 ns/DIV
FB
IC401
RB
(XC-OUT)
1 V/DIV, 20
μ
s/DIV
30.5
μ
s
2.5 Vp-p
– USB Board –
– TC Board –
– MAIN Board –
•
IC Block Diagrams
– CD Board –
IC201 TK63115SCL-G@GT
THERMAL &
OVER CURRENT
PROTECTION
VOLTAGE
REFERENCE
ON/OFF
CONTROL
VIN 1
GND 2
VCONT 3
NC
4
VOUT
5
+
–
IC401 BA5826SFP-E2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
24
23
22
21
20
19
18
17
16
15
25
LEVEL
SHIFT
LEVEL
SHIFT
THERMAL
SHUT-DOWN
REGULATOR
BIAS TRAP
LEVEL
SHIFT
MUTE
LEVEL
SHIFT
D.BUFF
D.BUFF
D.BUFF
GND
IN4
IN4'
BIAS
VCC
VCC
IN3'
IN3
VO3(+)
VO3(–)
VO4(–)
VO4(+)
RESETt
OPIN
VO1(–)
REGB
VO1(+)
IN1
RESET
REGOUT
MUTE
GND
IN2'
IN2
VO2(+)
VO2(–)
GND
OPOUT
D.BUFF
D.BUFF
D.BUFF
D.BUFF
D.BUFF
REGULA
TOR
VCC
VCC
IC501 AK5358AET-E2
MODULATOR
DECIMATION
FILTER
1
AINR
AINL
CKS1
VCOM
AGND
VA
VD
DGND
CKSO
CKS2
DIF
PDN
SCLK
MCLK
LRCK
SDTO
MODULATOR
DECIMATION
FILTER
SERIAL I/O
INTERFACE
CLOCK
DIVIDER
2
VOLTAGE
REFERENCE
4
3
5
6
8
7
16
15
13
14
12
11
9
10
IC502 TC74VHC157FT (EKJ)
SELECT 11
1
1A 2
3
4
5
6
7
INPUT
INPUT
OUTPUT
OUTPUT
1A
1B
1Y
2A
2B
2Y
1B
1Y
2A
2B
2Y
GND 8
V
CC
STROBE
16
4A
15
14
13
11
12
11
10
INPUT
INPUT
OUTPUT
OUTPUT
G
4B
4Y
3A
4A
4B
4Y
3A
3B
9
3B
3Y
3Y
S
– USB Board –
IC915 R5523N001B-TR-F
1
EN
2
GND
3
FLG
4 IN
5 OUT
GATE
CONTROL
UVLO
THERMAL
SHUTDOWN
CURRENT
LIMIT
FLAG
DELAY
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299