HCD-DH50R/DH70SWR
52
– JACK Board –
IC251 TC9488FG
2
OSC
ADPCM
DECODE
DELAY
DRAM
ADPCM
ENCODE
ADC
DAC
S/H
POST
LPF
ALC
VOLUME CONTROL
OSCC
1
VDD
3
OSCR
4
NC
5
VOL1 (CS)
6
VOL2 (SCL)
7
VOL3 (SDA)
8
NC
9
VRO
VREF
VDA
NC
ALC1
MC1N
MC1P
15
16
14
13
12
11
10
VREF
VREF
VREF
VREF
ALC
VREF
MC2P
17
MC2N
18
ALC1
19
NC
20
VSA
21
MCO
22
PRIN
23
ADIN
24
NC
25
DA
OUT
26
VOLST
27
NC
28
TEST
29
POOUT
30
VSS
– POW-SUPPLY Board –
IC601 MIP2F20MS1SO
CONSTANT
CURRENT
SOURCE
2
FB
1
VDD
4
VCC
5 DRAIN
8 SOURCE
7 SOURCE
3
CL
VCL
CLAMP CIRCUIT
(ILIMIT SETTING)
IN
ICL.LOW
VCL.OUT
ILIMIT VARIABLE
CIRCUIT
+
–
+
–
+
–
7.2V
+
–
2.4V
VCC UV
VCC OVP
OVERHEAT
PROTECTION
S
R
Q
Q
RESTARTING
TRIGGER
R
S
Q
Q
+
–
27%
22%
FOR LIGHT LOAD
DETECTION INTERMITTENT
OSCILLATION CONTROL
GENERATOR
CLOCK
12kHz
MAXDC
5.7V
5.0V
VDD UV
5.7V
REGULATOR
VDD CLAMP
CIRCUIT
6.6V
+
–
ILIMIT
CORRECTION
CIRCUIT
FOR
DRAIN CURRENT
DETECT
GATE DRIVER
POWER
MOSFET
AT TURNING ON
BLANKING PULSE
GENERATION CIRCUIT
Содержание HCD-DH50R
Страница 9: ...HCD DH50R DH70SWR 9 ARRANGEMENT OF LEAD WIRE lead wire lead wire ...
Страница 87: ...MEMO HCD DH50R DH70SWR 87 ...