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HCD-DZ520K/DZ620K
Q Q
3 7 6 3 1 5 1 5 0
• IC Block Diagrams
– MAIN Board –
IC2200 PCM1803DBR
5 th Order
Single-End
VINL 1
Delta-Sigma
/Differential
Modulator
VINR 2
Converter
VERF1 3
VERF2 4
Reference
Single-End
5 th Order
/Differential
Delta-Sigma
Converter
Modulator
VCC 5
Power Supply
AGND 6
PDWN 7
BYPAS 8
FSYNC 9
LRCK 10
T E
L
1 3 9 4 2 2 9 6 5 1 3
IC3010, IC3020, IC3030 CXD9788AR
48
47
46
45
44
43
42
41 40 39 38 37
∆ ∑ Converter
PWM
Clock Generator
(Secondary Clock System)
1
2
w w w
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20
HCD-DZ520K/DZ620K
Serial
Interface
× 1/64 (× 1/128)
Decimation
Filter
with
DC Cut Filter
Mode/
Format
Control
Clock and Timing Control
Sampling Rate
Converter
Filter
Liner
&
Gain
Interpolator
DF2
DF1
S
P
LOW
Control
CUT
Filter
36
35
Clock Generator
(Primary Clock System)
INIT/MUTE
Serial Control
34
33
32
21
22
23
24
25
26
27
28
29
30
31
x
a o
.
i
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20
MODE1
19
MODE0
18
FMT1
17
FMT0
16
OSR
IC3100, IC3150, IC3200, IC3250, IC3300, IC3400, IC3500 CXD9883M
15
SCKI
14
VDD
13
DGCD
12
DOUT
11
BCK
Q
Q
3
7
6
BST_A
1
GVDD_A
2
/OTW
3
/SD
4
/RESET
5
PWM_A
6
OC_ADJ
7
GND
8
AGND
9
VREG
10
M3
11
12
M2
M1
13
PWM_B
14
XFSIIN
DVDD
VDD
15
TEST
BFVSS
GND
16
BFVDD
GVDD_B
17
BST_B
18
u 1 6 3
y
52
52
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2
4
8
9
9
IC3050 TK1118CSCL-G
5
4
OVER HEAT &
OVER CURRENT
PROTECTION
CONTROL
CIRCUIT
BANDGAP
REFERENCE
1
2
3
3
1
5
1
5
0
8
9
VREG
/HIZ_HS_A
/HIZ_LS_A
Stuck
Detect
Protection
Logic
Timing
Control
/OCH_A
Programmable
Current sense
/OCL_A
/RESET_A
Temperature
waming/error
Protection
and
Reset
/HIZ_HS_X
Logic
/HIZ_LS_X
/UVP
/OCH_X
/OCL_X
VREG
/RESET_X
Under
GVDD_A
Voltage
OLP
/PCR
Power-Up
Protection
GVDD_B
OTP
Reset
CB3C
/UVP
/HIZ_HS_B
/UVP_VREG
/HIZ_LS_B
Timing
Protection
Control
VREG
Logic
Stuck
REG
Detect
/OCH_B
/OCL_B
/RESET_B
m
c o
.
2
8
9
9
2
4
9
8
2
9
9
36
PVDD_A
Over
Current
Fault
35
PVDD_A
34
PVDD_A
Gate
Drive
33
PGND
32
PGND
31
PGND
30
OUT_A
Gate
Drive
29
OUT_A
OUT_A
28
Over
Current
Fault
27
OUT_B
Over
Current
26
OUT_B
Fault
25
OUT_B
Gate
Drive
24
PGND
23
PGND
22
PGND
21
PVDD_B
Gate
Drive
20
PVDD_B
19
PVDD_B
Over
Current
Fault
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