Sony WM-FX522 - Specific IC Block Diagrams

22
WM-FX522
IC801 XC6383C251ML
V
1
PW
2
W
3
GND
4
OSC
5
DR
6
VREF
7
START
8
VSP
9
IN+
10
PV
20
U
19
PU
18
GND
17
VCC
16
FC
15
TC1
14
TC2
13
R1
12
OUT
11
MOTIVE
CONTROL
CIRCUIT
MOTIVE/
OSC
MOTIVE
LOGIC
SOFT SWITCH
PRE DRIVER
INVERTER
BIAS
REFERENCE
VOLTAGE
SPEED
CONTROL
CURRENT
CONTROL
OUTPUT
BIAS
+
–
IC601 MM1279XVBE
+
–
+
–
CHIP ENABLE
V REF
VDD
2 STEP PFM CONTROL
OSC 100/180 kHz
VLx LIMITER
BUFFER
1
2
3 4
5
CE
V OUT
NC
LX
VSS