32
NW-HD1
IC9002
SC901584EPR2
POWER
SWITCH 2
SERIAL
PASS
REGULATOR 3
49
REGC2
50
REG2G
51
REGO2
52
REGI2
53
REGC1
54
REGO1
55
REGI1
22 INM1
21 RF1
58
DATA
59
STRB
60
CLK
61
WDT
62
SEQSEL
63
CLK
64
SLEEP
1
FFCLR
2
XWK4
3
XWK3
4
XWK2
5
XWK1
LVB
6
VRMC
FFCLR
7
HVB
8
VTSB
9
VC1
10
VCO1
11
VO1
13
L1
14
L1
15
PGND1
16
PGND1
12
34
XRST2
33
CRST2
20 DTC1
19 XRST1ADJ
18 CRST1
17 XRST1
25 LG
24 VG
26 PGND3
23 C1L
29 VGSEL1
28 VGSEL2
30 INM2
31 RF2
32 DTC2
RST2
REF2
VG SELECT, VG DUTY
CLK
36
PGND2
35
PGND2
L2
37
L2
38
VO2
39
VCO2
40
VCIN
41
VC2
42
DW 2T
43
DW 2B
44
MUTEON
45
REGC3
46
REGO3
47
REGI3
48
SERIAL
PASS
REGULATOR 2
SERIAL
PASS
REGULATOR 1
RST1
RST2
SEQSEL
MUTE ON
MUTING
BUFFER
VC2
RST2
POWER
SWITCH 1
RST2
STEP
UP-DOWN
DRIVER
PWM
START UP
RESET 2
VC2
REF2
VREF
VB
REF1
VC
VREF
27 VB
STEP UP
DC/DC CONVERTER
CONTROL
REF1
REF2
REF3
REF4
REF5
REF DAC
VREF0
RST1
LVB
DRIVER
VREF
VC
VC
STEP
UP-DOWN
DRIVER
PWM
VREF
RESET 1
VC
RST1
VREF
REF1
56
GND
57
VREF
VC
VREF0
BANDGAP
REFERENCE
IC9503
R2061K01-E2
SIO 1
SCLK 2
7 OSCIN
VSB
4
VCC
5
VDD
6
CE
12
CIN
10
VSS
11
LEVEL
SHIFTER
DELAY
REAL
TIME
CLOCK
/VDCC 3
VOLTAGE
DETECTOR
BATTERY
VOLTAGE
MONITOR
8 OSCOUT
9 /INTR
VOLTAGE
REFERENCE
Summary of Contents for Walkman NW-HD1
Page 67: ...19 NW HD1 MEMO ...