Sony XDP-PK1000 Service Manual page 20

XDP-PK1000
IC302 BD9070FP-E2
VREGB 1
VIN 2
DRV
DRV
LOGIC
N.C. 3
N.C. 4
PGND 5
GND 6
RT 7
SYNC
EN 8
HSDCTL 9
CONTROL
LOGIC
UVLO,
TSD,
HSD UVLO
FLG 10
N.C. 11
HSDSW 12
HSDSW 13
IC407, 408 PCM1808PWR
DELTA-SIGMA
MODULATOR
VREF 1
REFERENCE
DELTA-SIGMA
MODULATOR
AGND 2
VCC 3
POWER
VDD 4 SUPPLY
DGND 5
SCKI 6
LRCK 7
20
PWM
+
+ +
R –
–
ERR
SLOPE
S
UVLO, TSD,
SOFT
OVP, OCP, SCP
START
OSC
VREF
VREG UVLO UVLO
TSD TSD
CHARGE
PUMP
OCD
ANTIALIAS
LOW-PASS FILTER
ANTIALIAS
LOW-PASS FILTER
1/64
DECIMATION
INTERFACE
FILTER
WITH
MODE/FORMAT
HIGH-PASS
CONTROL
FILTER
CLOCK & TIMING CONTROL
25
24
OCP 23
+
OCP
–
22
21
20
19
18
+
SCP
–
SCP
OVP
– 17
OVP
+
16
15
HSD
14
UVLO
–
HSD UVLO
+
14 VINR
13 VINL
12 FMT
SERIAL
11 MD1
10 MD0
&
9 DOUT
8 BCK
PVIN
PVIN
N.C.
SW
SW
N.C.
FB
INV
OVP
VDD
VDD
N.C.