67
MEX-1HD
– POWER Board –
IC701
LTC1628CG#TR
0.66V
0.60V
MERGE
LOGIC
28
27
24
26
25
23
INTVCC
PGND
BOTTOM
TOP
SWITCH LOGIC
DROP OUT
DET
BOTTOM
S
R
Q
Q
0.55V
VCC
+
−
+
−
+
−
−
+
+
−
+
−
+
−
+
−
0.66V
0.60V
0.86V
SLOPE COMP
V
V
3
2
1
4
5
RUN SOFT
START
RESET
OSC
TOP ON
VCC
16
15
17
19
INTVCC
BOTTOM
TOP
SWITCH LOGIC
DROP OUT
DET
BOTTOM
S
R
Q
Q
0.55V
+
−
+
−
+
−
+
−
−
+
+
−
+
−
+
−
0.68V
SLOPE COMP
V
V
11
12
14
13
RUN SOFT
START
RESET
TOP ON
18
PGND
VCC
EA
+5V
REGULATOR
6
22
21
20
4.8V
+
−
+
−
7
8
9
10
3V
VIN
4.5V
BINH
VREF
FLTCPL
TG1
VIN
SW1
BOOST1
BG1
TG2
RUN/SS2
SW2
BG2
BOOST2
EXTVCC
INTVCC
PGND
SENS1
−
SENS1+
RUN/SS1
VOSENS1
FREQSET
ITH2
VOSENS2
SENS2+
SENS2
−
STBYMD
FCB
ITH1
SGND
3.3VOUT
EA
Содержание MEX-1HD - Audio Library System
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